Cisco 300-101

Implementing Cisco IP Routing
Version: 9.0

Cisco 300-101 Exam
Topic 1, Network Principles

QUESTION NO: 1

Refer to the exhibit.

Based on this FIB table, which statement is correct?

A.
There is no default gateway.

B.
The IP address of the router on FastEthernet is 209.168.201.1.

C.
The gateway of last resort is 192.168.201.1.

D.
The router will listen for all multicast traffic.

Answer: C
Explanation:

The 0.0.0.0/0 route is the default route and is listed as the first CEF entry. Here we see the next
hop for this default route lists 192.168.201.1 as the default router (gateway of last resort).

QUESTION NO: 2

Refer to the exhibit.

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Cisco 300-101 Exam

A network administrator checks this adjacency table on a router. What is a possible cause for the
incomplete marking?

A.
incomplete ARP information

B.
incorrect ACL

C.
dynamic routing protocol failure

D.
serial link congestion

Answer: A
Explanation:

To display information about the Cisco Express Forwarding adjacency table or the hardware Layer
3-switching adjacency table, use the show adjacency command.

Reasons for Incomplete Adjacencies

There are two known reasons for an incomplete adjacency:

No ARP Entry

When CEF cannot locate a valid adjacency for a destination prefix, it punts the packets to the CPU
for ARP resolution and, in turn, for completion of the adjacency.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/express-forwarding-cef/17812-cef-
incomp.html#t4

QUESTION NO: 3

A network engineer notices that transmission rates of senders of TCP traffic sharply increase and
decrease simultaneously during periods of congestion. Which condition causes this?

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actualtests.wikipedia. to allow them to hold packets when the network is busy. Because routers have limited resources. Cisco 300-101 Exam A. steady streams to lose packets simultaneously. However. the queue is constantly full. starvation B. tail drop C. Any Time. This causes problems when used on TCP/IP routers handling multiple TCP streams.www. the size of these queues is also limited. The queue is allowed to fill to its maximum size. jitter "Pass Any Exam. global synchronization B. The simplest technique to limit queue size is known as tail drop.com 4 .) A. and then any new packets are simply discarded. Routers on the Internet normally have packet queues. queue management algorithm Answer: A Explanation: TCP global synchronization in computer networks can happen to TCP/IP flows during periods of congestion because each sender will reduce their transmission rate at the same time when packet loss occurs. especially when bursty traffic is present. and there are no problems except that the full queue results in high latency.org/wiki/TCP_global_synchronization QUESTION NO: 4 Which three problems result from application mixing of UDP and TCP streams within a network with no QoS? (Choose three." . rather than discarding them. until there is space in the queue again. Reference: http://en. While the network is stable. the introduction of a sudden burst of traffic may cause large numbers of established. random early detection D.

Cisco 300-101 Exam
C.
latency

D.
windowing

E.
lower throughput

Answer: A,C,E
Explanation:

It is a general best practice not to mix TCP-based traffic with UDP-based traffic (especially
streaming video) within a single service provider class due to the behaviors of these protocols
during periods of congestion. Specifically, TCP transmitters will throttle-back flows when drops
have been detected. Although some UDP applications have application-level windowing, flow
control, and retransmission capabilities, most UDP transmitters are completely oblivious to drops
and thus never lower transmission rates due to dropping. When TCP flows are combined with
UDP flows in a single service provider class and the class experiences congestion, then TCP
flows will continually lower their rates, potentially giving up their bandwidth to drop-oblivious UDP
flows. This effect is called TCP-starvation/UDP-dominance. This can increase latency and lower
the overall throughput.

TCP-starvation/UDP-dominance likely occurs if (TCP-based) mission-critical data is assigned to
the same service provider class as (UDP-based) streaming video and the class experiences
sustained congestion. Even if WRED is enabled on the service provider class, the same behavior
would be observed, as WRED (for the most part) only affects TCP-based flows.

Granted, it is not always possible to separate TCP-based flows from UDP-based flows, but it is
beneficial to be aware of this behavior when making such application-mixing decisions.

Reference: http://www.cisco.com/warp/public/cc/so/neso/vpn/vpnsp/spqsd_wp.htm

QUESTION NO: 5

Which method allows IPv4 and IPv6 to work together without requiring both to be used for a single
connection during the migration process?

A.
dual-stack method

B.
6to4 tunneling

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Cisco 300-101 Exam
C.
GRE tunneling

D.
NAT-PT

Answer: A
Explanation:

Dual stack means that devices are able to run IPv4 and IPv6 in parallel. It allows hosts to
simultaneously reach IPv4 and IPv6 content, so it offers a very flexible coexistence strategy. For
sessions that support IPv6, IPv6 is used on a dual stack endpoint. If both endpoints support Ipv4
only, then IPv4 is used.

Benefits:

• Native dual stack does not require any tunneling mechanisms on internal networks

• Both IPv4 and IPv6 run independent of each other

• Dual stack supports gradual migration of endpoints, networks, and applications.

Reference: http://www.cisco.com/web/strategy/docs/gov/IPV6at_a_glance_c45-625859.pdf

QUESTION NO: 6

Which statement about the use of tunneling to migrate to IPv6 is true?

A.
Tunneling is less secure than dual stack or translation.

B.
Tunneling is more difficult to configure than dual stack or translation.

C.
Tunneling does not enable users of the new protocol to communicate with users of the old protocol
without dual-stack hosts.

D.
Tunneling destinations are manually determined by the IPv4 address in the low-order 32 bits of
IPv4-compatible IPv6 addresses.

Answer: C

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Cisco 300-101 Exam
Explanation:

Using the tunneling option, organizations build an overlay network that tunnels one protocol over
the other by encapsulating IPv6 packets within IPv4 packets and IPv4 packets within IPv6
packets. The advantage of this approach is that the new protocol can work without disturbing the
old protocol, thus providing connectivity between users of the new protocol.

Tunneling has two disadvantages, as discussed in RFC 6144:

• Users of the new architecture cannot use the services of the underlying infrastructure.

• Tunneling does not enable users of the new protocol to communicate with users of the
old protocol without dual-stack hosts, which negates interoperability.

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6-
solution/white_paper_c11-676278.html

QUESTION NO: 7

A network administrator executes the command clear ip route. Which two tables does this
command clear and rebuild? (Choose two.)

A.
IP routing

B.
FIB

C.
ARP cache

D.
MAC address table

E.
Cisco Express Forwarding table

F.
topology table

Answer: A,B
Explanation:

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Cisco 300-101 Exam To clear one or more entries in the IP routing table.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/unicast/5_0_3_N1_1/Cis co_n5k_layer3_ucast_cfg_rel_503_N1_1/l3_manage-routes. •prefix/length—Any IP prefix." . use the following commands in any mode: Command Purpose clear ip route {* | {route | prefix/length}[next-hop interface]} [vrf vrf-name] Example: switch(config)# clear ip route 10. •next-hop—The next-hop address •interface—The interface to reach the next-hop address.cisco. "Pass Any Exam.2. •route—An individual IP route.actualtests.2 Clears one or more routes from both the unicast RIB and all the module FIBs.html QUESTION NO: 8 Which switching method is used when entries are present in the output of the command show ip cache? A.com 8 . alphanumeric string up to 32 characters. Any Time.www. The vrf-name can be any case-sensitive. Reference: http://www.2. The route options are as follows: •*—All routes. fast switching B.

Answer: A. Cisco Express Forwarding switching D. Reference: http://www. Routers offer better packet-transfer performance when fast switching is enabled.cisco. Destination addresses are stored in the high-speed cache to expedite forwarding.com/c/en/us/td/docs/ios/12_2/switch/command/reference/fswtch_r/xrfscmd5. use the “show ip cache” EXEC command. Execute the command ip tcp window-size 65536. Execute the command ip tcp queuemax. Set TCP options to "enabled" on the remote host. B.html #wp1038133 QUESTION NO: 9 Which two actions must you perform to enable and use window scaling on a router? (Choose two.) A.com 9 . cut-through packet switching Answer: A Explanation: Fast switching allows higher throughput by switching a packet using a cache created by the initial packet sent to a particular destination. To display the routing table cache used to fast switch IP traffic.B "Pass Any Exam. Cisco 300-101 Exam process switching C. Any Time. Execute the command ip tcp adjust-mss. C.actualtests. E.www. D. Set window scaling to be used on the remote host. Fast switching is enabled by default on all interfaces that support fast switching." .

The TCP Window Scaling feature complies with RFC 1323. A larger window size is recommended to improve TCP performance in network paths with large bandwidth-delay product characteristics that are called Long Fat Networks (LFNs). The larger scalable window size will allow TCP to perform better over LFNs. TCP Extensions for High Performance. Cisco 300-101 Exam Explanation: The TCP Window Scaling feature adds support for the Window Scaling option in RFC 1323. time stamps E. The TCP Window Scaling enhancement provides that support. TCP path discovery F. Typical applications use a scale factor of 3 when deployed in LFNs. Use the ip tcp window-size command in global configuration mode to configure the TCP window size. header compression B.cisco. In order for this to work.html#GUID-BD998AC6-F128-47DD-B5F7-B226546D4B08 QUESTION NO: 10 Which three TCP enhancements can be used with TCP selective acknowledgments? (Choose three.actualtests.www.com 10 .com/c/en/us/td/docs/ios-xml/ios/ipapp/configuration/12-4t/iap-12-4t- book/iap-tcp.D "Pass Any Exam.C.) A. The window scaling extension in Cisco IOS software expands the definition of the TCP window to 32 bits and then uses a scale factor to carry this 32-bit value in the 16-bit window field of the TCP header. Any Time." . The window size can increase to a scale factor of 14. MTU window Answer: B. the remote host must also support this feature and its window size must be increased. Reference: http://www. explicit congestion notification C. keepalive D.

The receiving TCP host returns selective acknowledgment packets to the sender. TCP receives acknowledgment of packets 1. Use the ip tcp ecn command in global configuration mode to enable TCP ECN. and 3. Any Time. An aggressive sender could choose to resend packets early. but such re-sent segments might have already been successfully received. Packets 4 through 8 would need to be re-sent. The TCP selective acknowledgment mechanism helps improve performance. In other words. informing the sender of data that has been received. Use the ip tcp timestamp command to enable the TCP time-stamp option. TCP Keepalive Timer The TCP Keepalive Timer feature provides a mechanism to identify dead connections. Refer to RFC 2018 for more details about TCP selective acknowledgment. The benefit of this feature is the reduction of delay and packet loss in data transmissions. such as Telnet. It also provides enhanced support for TCP sessions associated with applications. Prior to selective acknowledgment. TCP Explicit Congestion Notification The TCP Explicit Congestion Notification (ECN) feature allows an intermediate router to notify end hosts of impending network congestion. if TCP lost packets 4 and 7 out of an 8-packet window. TCP selective acknowledgment is used only when multiple packets are dropped within one TCP window. Cisco 300-101 Exam Explanation: TCP Selective Acknowledgment The TCP Selective Acknowledgment feature improves performance if multiple packets are lost from one TCP window of data. because of limited information available from cumulative acknowledgments. a TCP sender could learn about only one lost packet per-round-trip time.actualtests. 5. Because the time stamps are always sent and echoed in both directions and the time-stamp value in the header is always changing. The sender can then resend only missing data segments (instead of everything since the first missing packet). the receiver can acknowledge packets received out of order. TCP header compression will not compress the outgoing packet. 6. TCP Time Stamp The TCP time-stamp option provides improved TCP round-trip time measurements." .com 11 . "Pass Any Exam. and transfer of audio and video data that are sensitive to delay or packet loss. and 8. TCP would receive acknowledgment of only packets 1. 3. There is no performance impact when the feature is enabled but not used.www. Use the ip tcp selective-ack command in global configuration mode to enable TCP selective acknowledgment. With selective acknowledgment. the TCP time-stamp option is disabled. Only packets 4 and 7 must be re-sent. Prior to this feature. To allow TCP header compression over a serial link. 2. 2. web browsing.

Cisco 300-101 Exam When a TCP connection on a routing device is idle for too long. the device sends a TCP keepalive packet to the peer with only the Acknowledgment (ACK) flag turned on. packet loss. Here is a partial sample output from the IP SLA statistics that can be seen: router#show ip sla statistics 1 "Pass Any Exam.html#GUID-22A82C5F-631F-4390-9838- F2E48FFEEA01 QUESTION NO: 11 A network administrator uses IP SLA to measure UDP performance and notices that packets on one router have a higher one-way delay compared to the opposite direction.www. connectionless communication D. one-way latency." . and connectivity tests. MOS. average jitter.com/c/en/us/td/docs/ios-xml/ios/ipapp/configuration/xe- 3s/asr1000/iap-xe-3s-asr1000-book/iap-tcp. Reference: http://www. Each measurement operation can monitor against a pre-set performance threshold. Several SNMP traps are available: round trip time. the connection is considered dead and the device initiating the probes frees resources used by the TCP connection. latency B.cisco. Any Time. Which UDP characteristic does this scenario describe? A. starvation C.actualtests. nonsequencing unordered packets E. Cisco IOS IP SLAs generates an SNMP trap to alert management applications if this threshold is crossed. jitter. If a response packet (a TCP ACK packet) is not received after the device sends a specific number of probes. jitter Answer: A Explanation: Cisco IOS IP SLAs provides a proactive notification feature with an SNMP trap.com 12 .

" . when TCP traffic is in the same class as UDP B.html QUESTION NO: 12 Under which condition does UDP dominance occur? A. when WRED is enabled D. Any Time.845 UTC Thu Feb 3 2005 Latest operation return code: OK RTT Values: Number Of RTT: 10 RTT Min/Avg/Max: 1/1/1 milliseconds Latency one-way time: Number of Latency one-way Samples: 0 Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds Reference: http://www.www. Cisco 300-101 Exam Round Trip Time (RTT) for Index 55 Latest RTT: 1 ms Latest operation start time: *23:43:31. when ACLs are in place to block TCP traffic Answer: A Explanation: Mixing TCP with UDP "Pass Any Exam.actualtests.cisco. when UDP flows are assigned a lower priority queue C.com 13 .com/en/US/technologies/tk648/tk362/tk920/technologies_white_paper09186a008 02d5efe.

D. Any Time." . and retransmission capabilities. Execute the no switchport command. Specifically. This effect is called TCP starvation/UDP dominance. When TCP flows are combined with UDP flows within a single service-provider class and the class experiences congestion.com 14 . TCP starvation/UDP dominance likely occurs if (TCP-based) Mission-Critical Data is assigned to the same service-provider class as (UDP-based) Streaming-Video and the class experiences sustained congestion.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS- SRND-Book/VPNQoS. Reference: http://www.actualtests. TCP flows continually lower their transmission rates. which task must be completed? A. Disable CDP on the interface.www. Although some UDP applications have application-level windowing. never lower transmission rates because of dropping. Answer: B "Pass Any Exam. Execute the vpdn enable command. thus. C. Enable QoS FIFO for PPPoE support. Even if WRED is enabled on the service-provider class. most UDP transmitters are completely oblivious to drops and. potentially giving up their bandwidth to UDP flows that are oblivious to drops. B. flow control.cisco. TCP transmitters throttle back flows when drops are detected. the same behavior would be observed because WRED (for the most part) manages congestion only on TCP-based flows.html Topic 2. Cisco 300-101 Exam It is a general best practice to not mix TCP-based traffic with UDP-based traffic (especially Streaming-Video) within a single service-provider class because of the behaviors of these protocols during periods of congestion. Layer 2 Technologies QUESTION NO: 13 Prior to enabling PPPoE in a virtual private dialup network group.

configure terminal 3. SUMMARY STEPS 1. request-dialin 6. protocol pppoe DETAILED STEPS Command or Action Purpose Step 1 enable Example: Router> enable Enables privileged EXEC mode. Any Time. •Enter your password if prompted.actualtests. Step 2 configure terminal Example: Router# configure terminal Enters global configuration mode. Restrictions This task applies only to releases prior to Cisco IOS Release 12.com 15 . enable 2. "Pass Any Exam.www." . Cisco 300-101 Exam Explanation: Enabling PPPoE in a VPDN Group Perform this task to enable PPPoE in a virtual private dial-up network (VPDN) group. vpdn enable 4.2(13)T. vpdn-group name 5.

Step 5 request-dialin Example: Router(config-vpdn)# request-dialin Creates a request-dialin VPDN subgroup.html QUESTION NO: 14 A network engineer has been asked to ensure that the PPPoE connection is established and authenticated using an encrypted password. can "Pass Any Exam.com/en/US/docs/ios/12_2t/12_2t2/feature/guide/ftpppoec_support_TSD_Island_o f_Content_Chapter.com 16 . Cisco 300-101 Exam Step 3 vpdn enable Example: Router(config)# vpdn enable Enables virtual private dialup networking.actualtests. Step 4 vpdn-group name Example: Router(config)# vpdn-group group1 Associates a VPDN group with a customer or VPDN profile.cisco. Which technology. in combination with PPPoE.www. Step 6 protocol pppoe Example: Router(config-vpdn-req-in)# protocol pppoe Enables the VPDN subgroup to establish PPPoE Reference: http://www." . Any Time.

it concatenates the ID. dot1x C. The challenge packet consists of an ID. The remote device sends the results back to the access server." . The retrieved password should be the same password the remote device used in its encryption process. When CHAP is enabled on an interface and a remote device attempts to connect to it. along with the name associated with the password used in the encryption process. The benefit of using CHAP authentication is that the remote device’s password is never transmitted in clear text (encrypted). and the host name of the local router. This prevents other devices from stealing it and gaining illegal access to the ISP’s network.com 17 . CHAP E.cisco. Reference: http://www. the access server sends a CHAP packet to the remote device. and then encrypts all of it using the remote device’s password. The CHAP packet requests or “challenges” the remote device to respond. a random number. Ipsec D. the remote device’s password.com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfathen. PAP B. Cisco 300-101 Exam be used for authentication in this manner? A. authentication succeeds. When the access server receives the response. ESP Answer: D Explanation: With PPPoE. it uses the name it received to retrieve a password stored in its user database. Any Time.actualtests.html "Pass Any Exam. and the random number. the two authentication options are PAP and CHAP. When the remote device receives the challenge packet. The access server then encrypts the concatenated information with the newly retrieved password — if the result matches the result sent in the response packet.www.

Which feature can be used to accomplish this task? A. Dialer Persistent C. Peer Neighbor Route Answer: B Explanation: A new interface configuration command. or you can set a custom timer interval. Step 2 Router(config-if)# ip address address mask "Pass Any Exam. use the following commands beginning in global configuration mode: Command Purpose Step 1 Router(config)# interface dialer number Creates a dialer interface and enters interface configuration mode. the dialer persistent command starts a timer when the dialer interface starts up and starts the connection when the timer expires." . Cisco 300-101 Exam QUESTION NO: 15 A corporate policy requires PPPoE to be enabled and to maintain a connection with the ISP. dialer persistent.www. To configure a dialer interface as persistent. the connection is still brought up and set as persistent. half-bridging E. Any Time.com 18 . TCP Adjust B. The command provides a default timer interval. When configured. even if no interesting traffic exists.actualtests. allows a dial-on-demand routing (DDR) dialer profile connection to be brought up without being triggered by interesting traffic. If interesting traffic arrives before the timer expires. PPPoE Groups D.

www. Step 8 Router(config-if)# dialer remote-name user-name (Optional) Specifies the authentication name of the remote router on the destination subnetwork for a dialer interface.com/c/en/us/td/docs/ios/dial/configuration/guide/12_4t/dia_12_4t_book/dia_dialer "Pass Any Exam. Step 6 Router(config-if)# dialer-group group-number Assigns the dialer interface to a dialer group. Step 7 Router(config-if)# dialer-list dialer-group protocol protocol-name {permit | deny | list access-list- number} Specifies an access list by list number or by protocol and list number to define the interesting packets that can trigger a call.com 19 . Step 5 Router(config-if)# dialer pool number Specifies the dialing pool to use for calls to this destination. Cisco 300-101 Exam Specifies the IP address and mask of the dialer interface as a node in the destination network to be called.actualtests. even in the absence of interesting traffic. Step 3 Router(config-if)# encapsulation type Specifies the encapsulation type.cisco. Reference: http://www. Step 9 Router(config-if)# dialer persistent [delay [initial] seconds | max-attempts number] Forces a dialer interface to be connected at all times. Step 4 Router(config-if)# dialer string dial-string class class-name Specifies the remote destination to call and the map class that defines characteristics for calls to this destination." . Any Time.

CDPCP C. If the values match. periodically verifies the identity of the remote node using a three-way handshake.www.html QUESTION NO: 17 Which protocol uses dynamic address mapping to request the next-hop protocol address for a specific connection? "Pass Any Exam. MS CHAP B.com 20 .cisco.html QUESTION NO: 16 Which PPP authentication method sends authentication information in clear text? A. CHAP authentication. the authentication is acknowledged. hence. Reference: http://www. Cisco 300-101 Exam _persist. Any Time. on the other hand. CHAP D. the host sends a "challenge" message to the remote node. PAP Answer: D Explanation: PAP authentication involves a two-way handshake where the username and password are sent across the link in clear text. PAP authentication does not provide any protection against playback and line sniffing.com/c/en/us/support/docs/wan/point-to-point-protocol-ppp/10241-ppp- callin-hostname.actualtests. The host checks the response against its own calculation of the expected hash value." . the connection is terminated. The remote node responds with a value calc“lated usi”g a one-way hash function. After the PPP link is established. otherwise.

PPPoE functions as a Layer 3 encapsulation method that allows data to be transferred over the PPP link within PPPoE headers." . C.actualtests. dynamic DLCI mapping Answer: A Explanation: Dynamic address mapping uses Frame Relay Inverse ARP to request the next-hop protocol address for a specific connection.com 21 . PPP options are automatically enabled and authorization is performed. Cisco 300-101 Exam A. Once the link setup is completed. D. the table is then used to supply the next-hop protocol address or the DLCI for outgoing traffic. Once the link setup is completed. Responses to Inverse ARP requests are entered in an address-to-DLCI mapping table on the router or access server. Frame Relay broadcast queue D. PPPoE functions as a Layer 4 encapsulation method that allows data to be transferred over the PPP link within PPPoE headers. "Pass Any Exam. PPP options are negotiated and authentication is not performed.www. given its known DLCI. Reference: http://www. static DLCI mapping C.html QUESTION NO: 18 Which statement is true about the PPP Session Phase of PPPoE? A. Any Time.com/c/en/us/td/docs/ios/12_2/wan/configuration/guide/fwan_c/wcffrely.cisco. Once the link setup is completed. PPP options are not negotiated and authentication is performed. Frame Relay inverse ARP B. B. PPPoE functions as a Layer 2 encapsulation method that allows data to be encrypted over the PPP link within PPPoE headers.

cisco.actualtests. Active Discovery Phase and PPP Session Phase Answer: D Explanation: PPPoE is composed of two main phases: Reference: http://www. Answer: D Explanation: PPPoE is composed of two main phases: Reference: http://www.com/c/en/us/td/docs/security/asa/asa92/configuration/vpn/asa-vpn- cli/vpn-pppoe. Any Time. Cisco 300-101 Exam PPP options are negotiated and authentication is performed. Once the link setup is completed." .html Topic 3. Active Authorization Phase and PPP Session Phase D.html QUESTION NO: 19 PPPoE is composed of which two phases? A.www. Layer 3 Technologies "Pass Any Exam.com 22 .cisco. Passive Discovery Phase and PPP Session Phase C. PPPoE functions as a Layer 2 encapsulation method that allows data to be transferred over the PPP link within PPPoE headers. Active Authentication Phase and PPP Session Phase B.com/c/en/us/td/docs/security/asa/asa92/configuration/vpn/asa-vpn- cli/vpn-pppoe.

Router B will not advertise the 10. Answer: E Explanation: You can filter what individual routes are sent (out) or received (in) to any interface within your EIGRP configuration. Which one statement is true? A." .5. E.0/8 network. "Pass Any Exam.0/8 network will not be advertised by Router B because the network statement for the 10.0.0. Users on the 10.actualtests. The 10.168.0/16 route and therefore won’t send it to anyone else downstream.0. the next neighbor(s) will not know about anything except the 172.0/16 network will be blocked by the ACL. YOU won’t know about the route and therefore won’t send it to anyone else downstream. One example is noted above.0.0/8 network because it is blocked by the ACL.0. If you filter inbound.0.0.0/8 network can successfully ping users on the 192.0/24 network. If you filter outbound.0.0.5. Traffic from the 172.www.0.com 23 . C.0/24 cannot successfully ping users on the 10.0.0.0/8 network is missing from Router B.16. The 10. Cisco 300-101 Exam QUESTION NO: 20 Refer to the exhibit. B. but users on the 192. D.0.0/8 network will not be in the routing table on Router B.0.168. Any Time.16.

it has IP-connectivity to other neighbors on this link.actualtests. the node performs the Duplicate Address Detection mechanism to see if any other node is using the same link-local address on the link." . hosts and routers) begin the process by generating a link-local address for the interface. At this stage. The autoconfiguration on the routers stop at this stage. It is formed by appending the interface identifier to well-known link-local prefix FE80::0. Nodes (both. DHCPv6 request B. neighbor-solicitation D. Any Time. It does this by sending a Neighbor Solicitation message with target address as the "tentative" address and destination address as the solicited- node multicast address corresponding to this tentative address.www. the Router Advertisements notify what sort of configurations the hosts need to do and the hosts receive a global unicast IPv6 address. Hence. a stateful configuration is required. redirect Answer: B Explanation: Autoconfiguration is performed on multicast-enabled links only and begins when a multicast- enabled interface is enabled (during system startup or manually). If a node responds with a Neighbor Advertisement message with tentative address as the target address. The next phase involves obtaining Router Advertisements from routers if any routers are present on the link. Once the node verifies that its tentative address is unique on the link. If no routers are present. further tasks are performed only by the hosts. it assigns that link-local address to the interface. Which message is required to obtain a global unicast address when a router is present? A. the address is a duplicate address and must not be used. router-advertisement C. Cisco 300-101 Exam QUESTION NO: 21 A router with an interface that is configured with ipv6 address autoconfig also has a link-local address assigned. The interface identifier replaces the right-most zeroes of the link-local prefix. The routers will need manual configuration (or stateful configuration) to receive site-local or global addresses. If routers are present. "Pass Any Exam.Before the link-local address can be assigned to the interface. manual configuration is required.com 24 .

2001:DB8:0:1:C601:42FE:800F:7 Answer: A Explanation: Extended Unique Identifier (EUI).www.420F. IEEE has chosen FFFE as a reserved value which can only appear in EUI-64 generated from the EUI-48 MAC address. Here is an example showing how the Mac Address is used to generate EUI.0007 subnet 2001:DB8:0:1::/64 Which IPv6 addresses should the engineer add to the documentation? A.actualtests. Cisco 300-101 Exam Reference: https://sites. with one being OUI (Organizationally Unique Identifier) and the other being NIC specific. and was asked to document the IPv6 address of the router.com/site/amitsciscozone/home/important-tips/ipv6/ipv6-stateless- autoconfiguration QUESTION NO: 22 An engineer has configured a router to use EUI-64. 2001:DB8:0:1:FFFF:C601:420F:7 C. 2001:DB8:0:1:FE80:C601:420F:7 D. The router has the following interface parameters: mac address C601. The IPv6 EUI-64 format address is obtained through the 48-bit MAC address." . The 16-bit 0xFFFE is then inserted between these two 24-bits to for the 64-bit EUI address. as per RFC2373. "Pass Any Exam. This feature is a key benefit over IPv4 as it eliminates the need of manual configuration or DHCP as in the world of IPv4. 2001:DB8:0:1:C601:42FF:FE0F:7 B. Any Time. The Mac address is first separated into two 24-bits.google.com 25 . allows a host to assign iteslf a unique 64-Bit IP Version 6 interface identifier (EUI-64).

the address is globally unique. which caused the neighbor relationships to fail.com 26 . the address is locally administered and if 1. The reason for inverting can be found in RFC4291 section 2. needs to be inverted. The traffic filter is blocking all ICMPv6 traffic. shortly after implementing the traffic filter. the globally unique addresses assigned by the IEEE has always been set to 0 whereas the locally created addresses has 1 configured. Ipv6 traffic filtering can be implemented only on SVIs. C.actualtests. or the universal/local (U/L) bit.5.1. However. Therefore. an Ipv6 traffic filter was configured under various interfaces on the local router." .com/document/100566/understanding-ipv6-eui-64-bit- address QUESTION NO: 23 For security purposes. The link-local addresses that were used by OSPFv3 were explicitly denied. This bit identifies whether this interface identifier is universally or locally administered. The global anycast address must be added to the traffic filter to allow OSPFv3 to work properly. D. B. Any Time. Answer: C "Pass Any Exam. If 0. when the bit is inverted. OSPFv3 neighbor adjacencies were lost. It is worth noticing that in the OUI portion. it maintains its original scope (global unique address is still global unique and vice versa). the seventh bit from the left. What caused this issue? A. Reference: https://supportforums.www.cisco. Cisco 300-101 Exam Next.

actualtests.com/c/en/us/td/docs/ios/iproute_eigrp/command/reference/ire_book/ire_a1. It sets the BGP autonomous system number in a VRF.www. It sets the EIGRP autonomous system number in a VRF. so if any Ipv6 traffic filters are implemented be sure to include the link local address so that it is permitted in the filter list.com 27 ." .cisco. use the autonomous-system command in address-family configuration mode. It sets the global EIGRP autonomous system number. Any Time.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx- os/unicast/configuration/guide/l3_cli_nxos/l3_ospfv3. It sets the global BGP autonomous system number. C.html# wp1062796 "Pass Any Exam. B. Autonomous-system autonomous-system-number no autonomous-system autonomous-system-number Reference: http://www.cisco. Answer: A Explanation: To configure the autonomous-system number for an Enhanced Interior Gateway Routing Protocol (EIGRP) routing process to run within a VPN routing and forwarding (VRF) instance. D.html QUESTION NO: 24 What is the purpose of the autonomous-system {autonomous-system-number} command? A. To remove the autonomous-system for an EIGRP routing process from within a VPN VRF instance. use the no form of this command. Cisco 300-101 Exam Explanation: OSPFv3 uses link-local Ipv6 addresses for neighbor discovery and other features. Reference: http://www.

it is important to remember that an NBMA network can be configured in these modes of operation with the ip ospf network command: The Hello and Dead Intervals of each mode are described in this table: Network Type Hello Interval (secs) Dead Interval (secs) Point-to-Point 10 40 Point-to-Multipoint 30 120 Broadcast 10 "Pass Any Exam.actualtests. 40 Answer: A Explanation: Before you troubleshoot any OSPF neighbor-related issues on an NBMA network. Cisco 300-101 Exam QUESTION NO: 25 What is the default OSPF hello interval on a Frame Relay point-to-point network? A. 30 D.www. Any Time." . 20 C. 10 B.com 28 .

2. This question also asks us to apply this distribute list only to the outbound direction of "Pass Any Exam.0.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13693- 22. distribute list 1 out B.0/24 network out of FastEthernet 0/0? A. Any Time.cisco.actualtests." .0/24.0. distribute list 1 out FastEthernet0/0 C.0/8 networks. Cisco 300-101 Exam 40 Non-Broadcast 30 120 Reference: http://www.www.com 29 . allowing only 1.2.html QUESTION NO: 26 Refer to the exhibit.3. Which command only announces the 1. distribute list 2 out D.3. whereas access list 1 permits all 1. distribute list 2 out FastEthernet0/0 Answer: D Explanation: Access list 2 is more specific.

0/16 ge 24 le 24? A.0." .0/23 Answer: B Explanation: With prefix lists. Any Time. 10.8.0. where X is any value in the 0-255 range.24 matches this.0/16 D. 10. the ge 24 term means greater than or equal to a /24 and the le 24 means less than or equal to /24. C. 10.1. 10. Why is the routing information not being learned by Router B? A.0.0/24 C.0/24 B. After debugging IPv6 packets. QUESTION NO: 28 Router A and Router B are configured with IPv6 addressing and basic routing capabilities using oSPFv3.9.0/24 network.www. B.8.x. so only a /24 is both greater than or equal to 24 and less than or equal to 24. This translates to any prefix in the 10.8.0. so the correct command is “distribute list 2 out FastEthernet0/0.0.8. "Pass Any Exam. Only the choice of 10.8.” QUESTION NO: 27 Which prefix is matched by the command ip prefix-list name permit 10. OSPFv3 timers were adjusted for fast convergence. The networks were not advertised properly under the OSPFv3 process. the message "not a router" is found in the output.8. Cisco 300-101 Exam the fast Ethernet 0/0 interface.actualtests.0.com 30 . The networks that are advertised from Router A do not show up in Router B's routing table.

truncated Number of truncated packets. the version number." .html QUESTION NO: 29 After you review the output of the command show ipv6 interface brief. and packet length. you see that several IPv6 addresses have the 16-bit hexadecimal value of "fFFE" inserted into the address.com 31 . "Pass Any Exam. Answer: D Explanation: show ipv6 traffic Field Descriptions Field Description source-routed Number of source-routed packets. IEEE EUI-64 was implemented when assigning IPv6 addresses on the device.actualtests. what do you conclude about these IPv6 addresses? A. D. format errors Errors that can result from checks performed on header fields. Reference: http://www. not a router Message sent when IPv6 unicast routing is not enabled. IPv6 unicast routing is not enabled on Router A or Router B. Based on this information.www. Cisco 300-101 Exam An IPv6 traffic filter is blocking the networks from being learned via the Router B interface that is connected to Router A. Any Time.cisco.com/c/en/us/td/docs/ios/ipv6/command/reference/ipv6_book/ipv6_16.

but IPv6 Cisco Express Forwarding was disabled. It is worth noticing that in the OUI portion. Next.5. The IPv6 universal/local flag (bit 7) was flipped. the seventh bit from the left. with one being OUI (Organizationally Unique Identifier) and the other being NIC specific. The addresses were misconfigured and will not function as intended. The Mac address is first separated into two 24-bits. it maintains its original scope (global unique address is still global unique and vice versa). IPv6 unicast forwarding was enabled. E. If 0. the globally unique addresses assigned by the IEEE have always been set to 0 whereas the locally created addresses have 1 configured. The IPv6 EUI-64 format address is obtained through the 48-bit MAC address. The reason for inverting can be found in RFC4291 section 2. C. Answer: A Explanation: Extended Unique Identifier (EUI). when the bit is inverted. the address is locally administered and if 1. D. Here is an example showing how the Mac Address is used to generate EUI.actualtests.1. "Pass Any Exam. IPv6 addresses containing "FFFE" indicate that the address is reserved for multicast." . the address is globally unique. The 16-bit 0xFFFE is then inserted between these two 24-bits to for the 64-bit EUI address. Therefore. allows a host to assign iteslf a unique 64-Bit IP Version 6 interface identify them EUI-64). needs to be inverted. Cisco 300-101 Exam B.www. Any Time. as per RFC2373. This bit identifies whether this interface identifier is universally or locally administered.com 32 . This feature is a key benefit over IPv4 as it eliminates the need of manual configuration or DHCP as in the world of IPv4. or the universal/local (U/L) bit. IEEE has chosen FFFE as a reserved value which can only appear in EUI-64 generated from the EUI-48 MAC address.

Routers on the Ipv6 segment will respond with an advertisement that provides an external path from the local subnet.actualtests. such as prefix discovery. Cisco 300-101 Exam Once the above is done." . C. Router acknowledgment messages will be forwarded upstream.com/document/100566/understanding-ipv6-eui-64-bit- address QUESTION NO: 30 A packet capture log indicates that several router solicitation messages were sent from a local host on the Ipv6 segment. Router "Pass Any Exam. All local host traffic will be redirected to the router with the lowest ICMPv6 signature.com 33 . we have a fully functional EUI-64 format address. What is the expected acknowledgment and its usage? A. Any Time. Duplicate Address Detection will determine if any other local host is using the same Ipv6 address for communication with the Ipv6 routers on the segment. which is statically defined by the network administrator. D. where the DHCP server will allocate addresses to the local host.cisco. as well as certain data.www. Reference: https://supportforums. B. Answer: B Explanation: Router Advertisements (RA) are sent in response to router solicitation messages.

www. RA messages typically include the following information: •One or more onlink Ipv6 prefixes that nodes on the local link can use to automatically configure their Ipv6 addresses •Lifetime information for each prefix included in the advertisement •Sets of flags that indicate the type of autoconfiguration (stateless or stateful) that can be completed •Default router information (whether the router sending the advertisement should be used as a default router and. the amount of time (in seconds) the router should be used as a default router) •Additional information for hosts. the destination address in the RA message is the unicast address of the source of the router solicitation message. "Pass Any Exam. OSPF has been configured on routers Chicago and NewYork.com 34 . When an RA is sent in response to a router solicitation." . The destination address in router solicitation messages is the all-routers multicast address with a scope of the link. are sent by hosts at system startup so that the host can immediately autoconfigure without needing to wait for the next scheduled RA message. Given that router solicitation messages are usually sent by hosts at system startup (the host does not have a configured unicast address). However. if so. Any Time.com/c/en/us/td/docs/ios/ipv6/configuration/guide/12_4t/ipv6_12_4t_book/ip6- addrg_bsc_con. such as the hop limit and MTU a host should use in packets that it originates Reference: http://www. they cannot ping from the serial interface of the Seattle router to the loopback interface of the NewYork router. Cisco 300-101 Exam solicitation messages. which have a value of 133 in the Type field of the ICMP packet header. the unicast address of the interface sending the router solicitation message is used as the source address in the message. ROUTE.html QUESTION NO: 31 CORRECT TEXT Route. If the host has a configured unicast address.actualtests. the source address in router solicitation messages is usually the unspecified Ipv6 address (0:0:0:0:0:0:0:0). The loopback0 interface on NewYork is in Area 1.com is a small IT corporation that is attempting to implement the network shown in the exhibit.cisco. The SO/0 interface on Chicago and the SO/1 interface on NewYork are in Area 0. Currently the implementation is partially completed.com’s corporate implementation guidelines require: • The OSPF process ID for all routers must be 10. You have been asked to complete the implementation to allow this ping.

• The routing protocol must be enabled for each interface using the most specific wildcard mask possible. Any Time.189.54.16.com 35 . Cisco 300-101 Exam • The routing protocol for each interface must be enabled under the routing process.168.9/30 — Link between Chicago and NewYork S0/1 192. •OSPF area 21 must not receive any inter-area or external routes.16.5/30 — Link between Seattle and Chicago Secret Password: cisco Chicago S0/0 192.54." . Network Information Seattle S0/0 192.6/30 — Link between Seattle and Chicago Secre Password: cisco NewYork S0/1 192.actualtests.16.168.189 Secret Password: cisco "Pass Any Exam.10/30 — Link between Chicago and NewYork Loopback0 172.168. •The serial link between Seattle and Chicago must be in OSPF area 21.168.www.

Any Time." .com 36 .actualtests. Cisco 300-101 Exam "Pass Any Exam.www.

www.5 /30 Subnet Mask: 255. we need to find the network address and wildcard mask of 192. and router hostnames may change. Any Time.actualtests. "Pass Any Exam. First.5/30.5/30 in order to configure the OSPF.168.168.com 37 .16. So. Cisco 300-101 Exam Answer: Here is the solution below: Explanation: Note: In actual exam.5) belongs to subnet 1 (4 to 7).255.16. hence the subnets will increment by 4. IP Address: 192.16. 256-252 = 4. the IP addressing. Seattle’s S0/0 IP Address is 192. OSPF areas and process ID.252 Here subtract 252 from 2565.168. find the 4th octet of the Network Address: The 4th octet of IP address (192.16." .255.168. but the overall solution is the same.

actualtests. Host Bits – 0’s) Let’s find the wildcard mask of /30: Now we configure OSPF using process ID 10 (note the process ID may change to something else in real exam).0. Subnet Mask: (Network Bits – 1’s. Cisco 300-101 Exam Network Address: 192. Seattle>enable Password: Seattle#conf t Seattle(config)#router ospf 10 Seattle(config-router)#network 192. Seattle(config-router)#area 21 stub Seattle(config-router)#end Seattle#copy run start Chicago Configuration: "Pass Any Exam.4 0.0.3 area 21 One of the tasks states that area 21 should not receive any external or inter-area routes (except the default route).16.www.com 38 .168.16. Any Time.168.7 Let’s find the wildcard mask of /30.168.16." .4 Broadcast Address: 192.

Chicago(config-router)#area 21 stub no-summary Chicago(config-router)#end Chicago#copy run start The other interface on the Chicago router is already configured correctly in this scenario. we must stop LSA Type 5 if we don’t want to send external routes.com 39 . However. in the process of configuring EIGRP stub routing connectivity with the remote network devices off of R3 has been lost. QUESTION NO: 32 CORRECT TEXT JS Industries has expanded their business with the addition of their first remote office. In order to accomplish this.3 area 21 Again. R3. Cisco 300-101 Exam Chicago>enable Password: cisco Chicago#conf t Chicago(config)#router ospf 10 We need to add Chicago’s S0/1 interface to Area 21 Chicago(config-router)#network 192. Once the issue has been resolved you should complete the task by configuring route summarization only to the remote office router R3.0.0.4 0. JS Industries is interested in using route summarization along with the EIGRP Stub Routing feature to increase network stability while reducing the memory usage and bandwidth utilization to R3. Currently EIGRP is configured on all routers R2. Therefore we want to configure area 21 as a totally stubby area. Another network professional was tasked with implementing this solution. Any Time. as well as the New York router so there is nothing that needs to be done on that router. we have to stop LSA Type 3 and Type 4. Your task is to identify and resolve the cause of connectivity failure with the remote office router R3.16." .168. and R4 in the network. The remote office router (R3) was previously configured and all corporate subnets were reachable from R3.actualtests. area 21 should not receive any external or inter-area routes (except the default route). And if we don’t want to send inter-area routes. and the "Pass Any Exam.www. You have corrected the fault when pings from R2 to the R3 LAN interface are successful.

0 subnets. "Pass Any Exam.0.www.0. Any Time." .com 40 .actualtests. Cisco 300-101 Exam R3 IP routing table only contains 2 10.

com 41 ." . Any Time.actualtests. "Pass Any Exam. Use the show running-config command on router R3.www. Cisco 300-101 Exam Answer: Here are the solutions as below: Explanation: First we have to figure out why R3 and R4 can not communicate with each other.

www. The receive-only keyword will restrict the router from sharing any of its routes with any other router in that EIGRP autonomous system.0 network. the s0/0 interface of R4. "Pass Any Exam." . Any Time. Therefore we will remove this command and replace it with the eigrp stub command: R3# configure terminal R3(config)# router eigrp 123 R3(config-router)# no eigrp stub receive-only R3(config-router)# eigrp stub R3(config-router)# end Now R3 will send updates containing its connected and summary routes to other routers. Notice that the eigrp stub command equals to the eigrp stub connected summary because the connected and summary options are enabled by default. Use the show ip route command on R3 to view its routing table: Because we want the routing table of R3 only have 2 subnets so we have to summary sub- networks at the interface which is connected with R3. Cisco 300-101 Exam Notice that R3 is configured as a stub receive-only router. This keyword will also prevent any type of route from being sent.actualtests.0.0. Next we will configure router R3 so that it has only 2 subnets of 10.com 42 .

0 you will leave a /16 network in the output of the show ip route command. for example.0 255.0. R4> enable R4# conf t R4(config)# interface s0/0 R4(config-if)# ip summary-address eigrp 123 10.0.0 Now we jump back to R3 and use the show ip route command to verify the effect.0/8 is a summary…) then we should use the command ip summary-address eigrp 123 10.0.0.0.2.255.255.0 so that all the ping can work well. Any Time. which is a directly connected network of R3." .0. the output is shown below: Note: Please notice that the IP addresses and the subnet masks in your real exam might be different so you might use different ones to solve this question.2.0.2. In the output if we don’t see the summary line (like 10. Cisco 300-101 Exam There is one interesting thing about the output of the show ip route shown above: the 10. In conclusion.255.0.actualtests. we will use the ip summary-address eigrp 123 10. "Pass Any Exam. if you use the command ip summary-address eigrp 123 10.0/24.0.0 at the interface s0/0 of R4 to summary.0 255.2.0.0.0.www.com 43 .2. We can’t get rid of it in the routing table no matter what technique we use to summary the networks.0 255. Therefore.0/8 to summary. notice that if you use another network than 10.3. Just for your information. to make the routing table of R3 has only 2 subnets we have to summary other subnets into one subnet.255.0 255.

However. R3(config-if)# end R3# copy run start R4(config-if)# end R4# copy run start If the “copy run start” command doesn’t work then use “write memory.0/16.0. "Pass Any Exam. Cisco 300-101 Exam But in your real exam.www.0/8 is a summary. You will know that you have corrected the fault when R4’s loopback address (FEC0:4:4) can be seen in RTs Ipv6 routing table." . Null0” then you can summarize using the network 10. Special Note: To gain the maximum number of points you must remove all incorrect or unneeded configuration statements related to this issue. Currently OSPF is configured on all routers.actualtests. if you don’t see the line “10.0.com is a small IT corporation that has an existing enterprise network that is running Ipv6 0SPFv3. This summarization is better because all the pings can work well.” QUESTION NO: 33 CORRECT TEXT ROUTE.com 44 . R4’s loopback address (FEC0:4:4) cannot be seen in R1’s Ipv6 routing table. Finally don’t forget to use the copy run start command on routers R3 and R4 to save the configurations.0.2. You are tasked with identifying the cause of this fault and implementing the needed corrective actions that uses OPSF features and does not change the current area assignments. Any Time.

Cisco 300-101 Exam "Pass Any Exam.www. Any Time.com 45 ." .actualtests.

com 46 .actualtests.www. Cisco 300-101 Exam "Pass Any Exam. Any Time." .

Any Time. first issue the show running-config on all of 4 routers." .com 47 . Cisco 300-101 Exam Answer: Here is the solution below: Explanation: To troubleshoot the problem.www. Pay more attention to the outputs of routers R2 and R3 The output of the “show running-config” command of R2: The output of the “show running-config” command of R3: "Pass Any Exam.actualtests.

3.4”): R3>enable R3#configure terminal R3(config)#ipv6 router ospf 1 R3(config-rtr)#no area 54 virtual-link 4. + Configure virtual link on R2 (from the first output above. Make sure to remove the incorrect configuration statements to get the full points.com 48 . The area through which you configure the virtual link is known as a transit area.3 Save the configuration: R2(config-rtr)#end R2#copy running-config startup-config (Notice that we have to use neighbor router-id 3.2 Save the configuration: R3(config-rtr)#end R3#copy running-config startup-config You should check the configuration of R4. Cisco 300-101 Exam We knew that all areas in an Open Shortest Path First (OSPF) autonomous system must be physically connected to the backbone area (Area 0)." .2) + Configure virtual link on R3 (from the second output above. routers R2 and R3 must be configured with the area <area id> virtual- link <neighbor router-id>command.3.2. In this case. In some cases. the area 11 will become the transit area.3.actualtests.3.2. too. where this is not possible. not R2’s router-id 2.2.4. Any Time. we can use a virtual link to connect to the backbone through a non-backbone area. "Pass Any Exam.3 R4(config-router)#end After finishing the configuration doesn’t forget to ping between R1 and R4 to make sure they work. we learned that the OSPF process ID of R2 is 1): R2>enable R2#configure terminal R2(config)#ipv6 router ospf 1 R2(config-rtr)#area 11 virtual-link 3.4. we learned that the OSPF process ID of R3 is 1 and we have to disable the wrong configuration of “area 54 virtual-link 4.3. R4(config)#ipv6 router ospf 1 R4(config-router)#no area 54 virtual-link 3.4.3.www.2.4.3. Therefore.4 R3(config-rtr)#area 11 virtual-link 2.

You may use the Test Workstation to generate HTTP traffic to validate your solution.www. If you want to check the routing information. ROUTE. Choose and configure the appropriate path selection feature to accomplish this task. a small IT company. Any Time. "Pass Any Exam. All other traffic may use either link.com 49 .com. Cisco 300-101 Exam Note. QUESTION NO: 34 CORRECT TEXT You are a network engineer with ROUTE. No static or default routing is allowed." . use the show ipv6 route command.com has two connections to the Internet. IT policy requires that all outbound HTTP traffic use the frame relay link when it is available.actualtests. one via a frame relay link and one via an EoMPLS link. not “show ip route”.

Cisco 300-101 Exam Answer: We need to configure policy based routing to send specific traffic along a path that is different from the best path in the routing table.1. Here are the step by Step Solution for this: First create the access list that catches the HTTP traffic: R1(config)#access-list 101 permit tcp any any eq www 2) Configure the route map that sets the next hop address to be ISP1 and permits the rest of the traffic: R1(config)#route-map pbr permit 10 R1(config-route-map)#match ip address 101 R1(config-route-map)#set ip next-hop 10.100. Any Time.www.2 R1(config-route-map)#exit R1(config)#route-map pbr permit 20 3) Apply the route-map on the interface to the server in the EIGRP Network: R1(config-route-map)#exit R1(config)#int fa0/1 R1(config-if)#ip policy route-map pbr R1(config-if)#exit R1(config)#exit "Pass Any Exam.actualtests." .com 50 .

Two links have been added that will provide redundancy.1.actualtests. The network requirements state that you must be able to ping and telnet from loopback 101 on R1 to the OPSF domain test address of 172. A previous network engineer has started the merger implementation and has successfully assigned and verified all IP addressing and basic IGP routing. Delay. MTU) of the s0/0/0 interface (the interface of R2 connected to R4) for redistribution: "Pass Any Exam. The redundant paths from the OSPF network to the EIGRP network must be available in case of a link failure.com 51 . You may add new commands or change default values. QUESTION NO: 35 CORRECT TEXT You are a network engineer with ROUTE. Reliability. Answer: First we need to find out 5 parameters (Bandwidth.com. You have been tasked with completing the implementation and ensuring that the network requirements are met. After that configure the route map and then apply it on the interface to the server in EIGRP network. Any Time." . All traffic must use the shortest path that provides the greatest bandwidth. No static or default routing is allowed in either network. You may not remove or change any of the configuration commands currently on any of the routers.100. Load. They have recently merged two organizations and now need to merge their networks as shown in the topology exhibit.www. a small IT company.16. One network is using OSPF as its IGP and the other is using EIGRP as its IGP. Cisco 300-101 Exam Explanation: First you need to configure access list to HTTP traffic and then configure that access list. R4 has been added to the existing OSPF network to provide the interconnect between the OSPF and EIGRP networks.

MTU=1500 bytes then we would redistribute as follows: R2#config terminal R2(config)# router ospf 1 R2(config-router)# redistribute eigrp 100 metric-type 1 subnets R2(config-router)#exit R2(config-router)#router eigrp 100 R2(config-router)#redistribute ospf 1 metric 1544 2000 255 1 1500 Note: In fact. Delay=1000 us.actualtests. If the delay is 20000us then we need to divide it by 10. R2(config-router)# distance eigrp 90 105 This command sets the Administrative Distance of all EIGRP internal routes to 90 and all EIGRP external routes to 105. we get Bandwidth=1544 Kbit.com 52 . Note: If the link between R2 and R3 is FastEthernet link.www. these parameters are just used for reference and we can use other parameters with no problem. Reliability=255. Any Time." . which is smaller than the Administrative Distance of OSPF (110) -> the link "Pass Any Exam. that is 20000 / 10 = 2000) For R3 we use the show interface fa0/0 to get 5 parameters too R3#show interface fa0/0 For example we get Bandwidth=10000 Kbit. Load=1. For example. Cisco 300-101 Exam R2#show interface s0/0/0 Write down these 5 parameters.16.1 network (the network behind R4) in the routing table of R1 and make a ping from R1 to this network. Load=1. Reliability=255. which is better than R1 -> R2 -> R4. we must put the command below under EIGRP process to make traffic from R1 to go through R3 (R1 -> R2 -> R3 -> R4). Delay=20000 us. MTU=1500 bytes R3#config terminal R3(config)#router ospf 1 R3(config-router)#redistribute eigrp 100 metric-type 1 subnets R3(config)#exit R3(config-router)#router eigrp 100 R3(config-router)#redistribute ospf 1 metric 10000 100 255 1 1500 Finally you should try to “show ip route” to see the 172.100. notice that we have to divide the Delay by 10 because the metric unit is in tens of microsecond.

www. Any Time." .com 53 .actualtests. Cisco 300-101 Exam between R2 & R3 will be preferred to the serial link between R2 & R4. Access the device consoles to answer the questions. "Pass Any Exam. but the overall solution is the same. Note: The actual OPSF and EIGRP process numbers may change in the actual exam so be sure to use the actual correct values. QUESTION NO: 36 You have been asked to evaluate how EIGRP is functioning in a customer network.

actualtests. Any Time." .com 54 . Cisco 300-101 Exam "Pass Any Exam.www.

Any Time." . Cisco 300-101 Exam "Pass Any Exam.www.actualtests.com 55 .

www. What is the ratio of traffic over each path? A. Cisco 300-101 Exam Traffic from R1 to R6’s Loopback address is load shared between R1-R2-R4-R6 and R1-R3-R5- R6 paths. Any Time. 1:1 B." .actualtests. 1:5 C.com 56 . 6:8 "Pass Any Exam.

www.6” command from R1 and see this: "Pass Any Exam.actualtests. so we issue the “show ip route 150. Any Time." .1. find the IP address of the loopback0 interface on R6: We see that it is 150.com 57 .6.6. Cisco 300-101 Exam D.1.6. 19:80 Answer: D Explanation: First.

" .actualtests. Access the device consoles to answer the questions. QUESTION NO: 37 You have been asked to evaluate how EIGRP is functioning in a customer network. "Pass Any Exam.www. and 80 for the second path.com 58 . Cisco 300-101 Exam Notice the “traffic share count” shows 19 for the first path. Any Time.

com 59 .www." . Any Time. Cisco 300-101 Exam "Pass Any Exam.actualtests.

actualtests. Cisco 300-101 Exam "Pass Any Exam." .com 60 .www. Any Time.

Cisco 300-101 Exam

What type of route filtering is occurring on R6?

A.
Distribute-list using an ACL

B.
Distribute-list using a prefix-list

C.
Distribute-list using a route-map

D.
"Pass Any Exam. Any Time." - www.actualtests.com 61

Cisco 300-101 Exam
An ACL using a distance of 255

Answer: A
Explanation:

The configuration on R6 is as follows:

This is a standard distribute list using access list number 1.

QUESTION NO: 38

You have been asked to evaluate how EIGRP is functioning in a customer network. Access the
device consoles to answer the questions.

"Pass Any Exam. Any Time." - www.actualtests.com 62

Cisco 300-101 Exam

"Pass Any Exam. Any Time." - www.actualtests.com 63

" . Cisco 300-101 Exam "Pass Any Exam.com 64 .www.actualtests. Any Time.

com 65 . Any Time." . Cisco 300-101 Exam "Pass Any Exam.actualtests.www.

MD5 Answer: A Explanation: R4 and R2 configs are as shown below: "Pass Any Exam.com 66 . Cisco 300-101 Exam Which key chain is being used for authentication of EIGRP adjacency between R4 and R2? A. KEY D." . Any Time. EIGRP C. CISCO B.www.actualtests.

" . "Pass Any Exam. QUESTION NO: 39 You have been asked to evaluate how EIGRP is functioning in a customer network.www. Access the device consoles to answer the questions.actualtests.com 67 . Any Time. Cisco 300-101 Exam Clearly we see the actual key chain is named CISCO.

actualtests.www. Any Time. Cisco 300-101 Exam "Pass Any Exam." .com 68 .

" .actualtests.com 69 . Cisco 300-101 Exam "Pass Any Exam.www. Any Time.

" . Any Time. Cisco 300-101 Exam "Pass Any Exam.www.actualtests.com 70 .

1810944 D." .www. 333056 B. Any Time. 307456 Answer: C Explanation: R1’s routing table is as follows "Pass Any Exam.com 71 . 1938688 C.0 network on R1? A. Cisco 300-101 Exam What is the advertised distance for the 192.actualtests.168.46.

Access the device consoles to answer the questions. "Pass Any Exam.actualtests.0 route.168. which is shown as 1810944 for the 192. QUESTION NO: 40 You have been asked to evaluate how EIGRP is functioning in a customer network.www. Any Time.com 72 ." . Cisco 300-101 Exam The numbers after the route specify the administrative distance of the route (90 for EIGRP) and the distance metric of that particular route.46.

" .actualtests.www. Cisco 300-101 Exam "Pass Any Exam. Any Time.com 73 .

www. Any Time.actualtests.com 74 ." . Cisco 300-101 Exam "Pass Any Exam.

www." . Any Time.actualtests. Cisco 300-101 Exam "Pass Any Exam.com 75 .

40 Answer: B Explanation: The relevant configuration of R1 is shown below: "Pass Any Exam. 10 B.actualtests. Cisco 300-101 Exam What percent of R1’s interfaces bandwidth is EIGRP allowed to use? A. Any Time.com 76 . 20 C.www." . 30 D.

com 77 . The customer has disabled your access to the show running- config command.actualtests." . Cisco 300-101 Exam ip bandwidth-percent eigrp 1 20 1 = the EIGRP AS 20 = 20% of the bandwidth QUESTION NO: 41 Scenario: You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation. Any Time. "Pass Any Exam.www.

" . Any Time.com 78 .www.actualtests. Cisco 300-101 Exam "Pass Any Exam.

Any Time.actualtests.com 79 ." .www. Cisco 300-101 Exam "Pass Any Exam.

www.com 80 ." .actualtests. Cisco 300-101 Exam "Pass Any Exam. Any Time.

Cisco 300-101 Exam How old is the Type 4 LSA from Router 3 for area 1 on the router R5 based on the output you have examined? A. 1858 B.actualtests. 1569 Answer: A Explanation: Part of the “show ip ospf topology” command on R5 shows this: "Pass Any Exam.com 81 . Any Time. 600 D." . 1601 C.www.

3) shows the age is 1858.3.com 82 . QUESTION NO: 42 Scenario: You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation.3. Cisco 300-101 Exam The Link ID of R3 (3." . "Pass Any Exam.actualtests.www. Any Time. The customer has disabled your access to the show running- config command.

www." . Any Time.com 83 . Cisco 300-101 Exam "Pass Any Exam.actualtests.

Cisco 300-101 Exam "Pass Any Exam. Any Time." .actualtests.com 84 .www.

com 85 ." . Cisco 300-101 Exam "Pass Any Exam. Any Time.www.actualtests.

www. The R1-R3 link OSPF timer values should be 10. Answer: B Explanation: We can see the configured timers using the following command: "Pass Any Exam.actualtests. Cisco 300-101 Exam Which of the following statements is true about the serial links that terminate in R3? A. The R2-R3 link OSPF timer values are 30. R3 is responsible for flooding LSUs to all the routers on the network. Any Time.40. 120 C." . The R1-R3 link needs the neighbor command for the adjacency to stay up B. 120.com 86 .40 D.

" . "Pass Any Exam. The customer has disabled your access to the show running- config command.www. Cisco 300-101 Exam QUESTION NO: 43 Scenario: You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation.actualtests. Any Time.com 87 .

actualtests. Any Time.com 88 ." .www. Cisco 300-101 Exam "Pass Any Exam.

com 89 . Any Time.www.actualtests. Cisco 300-101 Exam "Pass Any Exam." .

Cisco 300-101 Exam "Pass Any Exam." .com 90 .www.actualtests. Any Time.

actualtests. 9 D. Any Time. 20 E. Cisco 300-101 Exam How many times was SPF algorithm executed on R4 for Area 1? A." . Look for the Area 1 stats which shows this: "Pass Any Exam. 224 Answer: C Explanation: This can be found using the “show ip ospf” command on R4. 54 F. 5 C.com 91 .www. 1 B.

"Pass Any Exam. The customer has disabled your access to the show running- config command. Cisco 300-101 Exam QUESTION NO: 44 Scenario: You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation. Any Time.com 92 ." .www.actualtests.

actualtests." .com 93 . Cisco 300-101 Exam "Pass Any Exam. Any Time.www.

" .www. Any Time.com 94 .actualtests. Cisco 300-101 Exam "Pass Any Exam.

com 95 . Any Time.www. Cisco 300-101 Exam "Pass Any Exam.actualtests." .

actualtests. Cisco 300-101 Exam Areas of Router 5 and 6 are not normal areas. Only R6's loopback is present in R5's Routing table E. Inspect their routing tables and determine which statement is true? A. R5's Loopback and R6's Loopback are both present in R6's Routing table C. Only R5's loopback is present in R5's Routing table D. R5's Loopback and R6's Loopback are both present in R5's Routing table B. Any Time.com 96 .www. Only R5's loopback is present in R6's Routing table Answer: A Explanation: Here are the routing tables of R5 and R6: "Pass Any Exam." .

Cisco 300-101 Exam Here we see R5’s loopbacks in the routing table shown as connected. VPN Technologies "Pass Any Exam.actualtests.6 loopback IP address of R6 is also seen as an OSPF route in R5’s routing table. Topic 4.6.6.com 97 . Any Time. and the 6.www." .

165. Any Time.230 255.2 tunnel destination 209.255.165.165.165. interface Tunnel0 bandwidth 1536 ip address 209.224 tunnel source 209.161.www. Cisco 300-101 Exam QUESTION NO: 45 A company has just opened two remote branch offices that need to be connected to the corporate network.224 tunnel mode gre multipoint C.com 98 .200.actualtests.255.224 tunnel source Serial0/0 tunnel mode gre multipoint B.201.231 255.200. interface fa0/0 bandwidth 1536 ip address 209." . Which interface configuration output can be applied to the corporate router to allow communication to the remote sites? A.201.165.1 tunnel-mode dynamic Answer: A "Pass Any Exam.168.255. interface Tunnel0 bandwidth 1536 ip address 209.255.200. interface fa 0/0 bandwidth 1536 ip address 209.165.255.1 tunnel-mode dynamic D.230 255.200.231 255.255.255.224 tunnel source 192.255.

x found with p2p GRE tunnels. Any Time. Instead the GRE tunnel is configured with the command tunnel mode gre multipoint.1. Note. effectively they have the tunnel mode gre command.62. The mGRE configuration is as follows: ! interface Tunnel0 bandwidth 1536 ip address 10. Conversely.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/DMVPDG/DMVPN_2_ Phase2.255. Cisco 300-101 Exam Explanation: The configuration of mGRE allows a tunnel to have multiple destinations.com 99 . The configuration of mGRE on one side of a tunnel does not have any relation to the tunnel properties that might exist at the exit points. which is not seen in the configuration because it is the default. tunnel interfaces by default are point-to- point (p-p) using GRE encapsulation.10 255.html QUESTION NO: 46 A network engineer executes the show crypto ipsec sa command. path MTU "Pass Any Exam. Which three pieces of information are displayed in the output? (Choose three.x.) A. This command is used instead of the tunnel destination x. an mGRE tunnel requires NHRP to resolve the tunnel endpoints. remaining key lifetime C.actualtests. Besides allowing for multiple destinations. a p2p GRE tunnel may connect to an mGRE tunnel.0 tunnel source Serial0/0 tunnel mode gre multipoint Reference: http://www.cisco.255. The distinguishing feature between an mGRE interface and a p2p GRE interface is the tunnel destination. This means that an mGRE tunnel on the hub may connect to a p2p tunnel on the branch. inbound crypto map B." . An mGRE interface does not have a configured destination.www.x.

255. remote crypto endpt.1. Any Time.2 PERMIT. flags={origin_is_acl.1.1.1. #pkts decrypt: 7760382.1. interface: FastEthernet0 Crypto map tag: test.1. The encrypted tunnel is built between 12.1. #pkts decompress failed: 0.0/0/0) remote ident (addr/mask/prot/port): (10.1. Cisco 300-101 Exam D.: 12.2 path mtu 1500.1.1.255.0/255.0. media mtu 1500 current outbound spi: 3D3 inbound esp sas: "Pass Any Exam. #pkts digest 7767918 #pkts decaps: 7760382. This output shows an example of the show crypto ipsec sa command (bolded ones found in answers for this question).1.1.1. failed: 0.1.0/255.1.B.: 12.} #pkts encaps: 7767918.1 local ident (addr/mask/prot/port): (20.1.0/0/0) current_peer: 12. invalid identity packets Answer: A. #send errors 1. Authentication Header (AH) is not used since there are no AH SAs. #pkts verify 7760382 #pkts compressed: 0.actualtests. #pkts encrypt: 7767918. local addr. You can see the two Encapsulating Security Payload (ESP) SAs built inbound and outbound. #Recv errors 0 local crypto endpt." .255.1.1. tagged packets E.com 100 .2 for traffic that goes between networks 20. 12.1 and 12. #pkts decompressed: 0 #pkts not compressed: 0. untagged packets F.1.0 and 10. #pkts compr.1.www.255.C Explanation: show crypto ipsec sa This command shows IPsec SAs built between peers.1.

Any Time. crypto map: test sa timing: remaining key lifetime (k/sec): (4608000/52) IV size: 8 bytes replay detection support: Y outbound ah sas: outbound pcp sas: Reference: http://www. conn id: 3442. conn id: 3443. in use settings ={Tunnel.actualtests. crypto map: test sa timing: remaining key lifetime (k/sec): (4608000/52) IV size: 8 bytes replay detection support: Y inbound ah sas: inbound pcp sas: inbound pcp sas: outbound esp sas: spi: 0x3D3(979) transform: esp-3des esp-md5-hmac . } slot: 0.html QUESTION NO: 47 Refer to the following output: Router#show ip nhrp detail "Pass Any Exam.com 101 . Cisco 300-101 Exam spi: 0x136A010F(325714191) transform: esp-3des esp-md5-hmac .cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike- protocols/5409-ipsec-debug-00. flow_id: 1444.www." . flow_id: 1443. } slot: 0. in use settings ={Tunnel.

It was obtained directly from the next-hop server.255." .1.1111.1.1111.1111.1111.1111.1111.255. Tunnel1 created 00:00:12.255.1111.255.2 What does the authoritative flag mean in regards to the NHRP information? A. Any Time.2.255.0.0. Answer: A Explanation: Show NHRP: Examples The following is sample output from the show ip nhrp command: Router# show ip nhrp 10. Dynamic.255.1111.2 255. The mapping entry was created in response to an NHRP registration request. tunnel 100 created 0:00:43 expire 1:59:16 Type: dynamic Flags: authoritative NBMA address: 10.1 255.0.255.1.11 10. NHRP mapping is for networks that are local to this router. B.com 102 .1. D. Cisco 300-101 Exam 10.actualtests. E.12.1. Tunnel0 created 0:10:03 expire 1:49:56 Type: static Flags: authoritative NBMA address: 10. expire 01:59:47 TypE. Flags: authoritative unique nat registered used NBMA address: 10.255.1111.255 because Cisco does not support aggregation of NBMA information through "Pass Any Exam. Data packets are process switches for this mapping entry. C.1.0.2 The fields in the sample display are as follows: •The IP address and its network mask in the IP-to-NBMA address cache. The mask is always 255.2.2/8 via 10.www. The NHRP mapping entry cannot be overwritten.

actualtests." . –static—NBMA address was statically configured. •Type of interface: –dynamic—NBMA address was obtained from the NHRP Request packet.com 103 .com/c/en/us/td/docs/ios/12_4/ip_addr/configuration/guide/hadnhrp. •The time in which the positive and negative authoritative NBMA address will expire (hours:minutes:seconds). •Flags: –authoritative—Indicates that the NHRP information was obtained from the Next Hop Server or router that maintains the NBMA-to-IP address mapping for a particular destination. Reference: http://www. a routing neighbor reachability issue B. •The interface type and number and how long ago it was created (hours:minutes:seconds). Cisco 300-101 Exam NHRP.cisco. Any Time. interface bandwidth congestion D. that the GRE tunnel to hub router is not encrypted Answer: A Explanation: DMVPN Tunnel Flaps Intermittently Problem "Pass Any Exam. This value is based on the ip nhrp holdtime command. a suboptimal routing table C.www.html QUESTION NO: 48 Which common issue causes intermittent DMVPN tunnel flaps? A.

1Q B. Cisco 300-101 Exam DMVPN tunnel flaps intermittently." . such as Fast Ethernet. ISL C. Solution When DMVPN tunnels flap.cisco. you cannot configure VRF-Lite on the same "Pass Any Exam.www. • A single IP infrastructure can be virtualized to provide up to 32 virtual networks end-to-end. check the neighborship between the routers as issues with neighborship formation between routers may cause the DMVPN tunnel to flap.com 104 . In order to resolve this problem. HDLC Answer: A Explanation: Restrictions for EVN • An EVN trunk is allowed on any interface that supports 802.1q encapsulation. Reference: http://www.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike- protocols/29240-dcmvpn. Frame Relay E.actualtests. • If an EVN trunk is configured on an interface. Any Time. and port channels. MPLS F. 802. make sure the neighborship between the routers is always up. PPP D. Gigabit Ethernet.html#Prblm1 QUESTION NO: 49 Which encapsulation supports an interface that is configured for an EVN trunk? A.

thereby enabling support for overlapping IP addresses across multiple EVNs. Any Time. IP address B. all the subinterfaces and associated EVNs have the same IP address assigned.pdf QUESTION NO: 51 "Pass Any Exam. access control lists E. Reference: http://www. OSPFv2 is supported.B.cisco.www.com/en/US/docs/ios-xml/ios/evn/configuration/xe-3sg/evn- overview. This is accomplished as a result of each EVN having a unique routing and forwarding table. NetFlow configuration Answer: A." .) A. forwarding table D.actualtests. routing table C. To simplify the configuration process. the trunk interface is identified by the same IP address in different EVN contexts. Cisco 300-101 Exam interface. Reference: http://www. In other words.pdf QUESTION NO: 50 Which three characteristics are shared by subinterfaces and associated EVNs? (Choose three.cisco.C Explanation: runk interface can carry traffic for multiple EVNs.com 105 .com/c/en/us/td/docs/ios-xml/ios/evn/configuration/xe-3s/evn-xe-3s- book/evn-overview. • OSPFv3 is not supported.

Cisco 300-101 Exam
A user is having issues accessing file shares on a network. The network engineer advises the user
to open a web browser, input a prescribed IP address, and follow the instructions. After doing this,
the user is able to access company shares. Which type of remote access did the engineer enable?

A.
EZVPN

B.
Ipsec VPN client access

C.
VPDN client access

D.
SSL VPN client access

Answer: D
Explanation:

The Cisco AnyConnect VPN Client provides secure SSL connections to the security appliance for
remote users. Without a previously installed client, remote users enter the IP address in their
browser of an interface configured to accept SSL VPN connections. Unless the security appliance
is configured to redirect http:// requests to https://, users must enter the URL in the form
https://<address>.

After entering the URL, the browser connects to that interface and displays the login screen. If the
user satisfies the login and authentication, and the security appliance identifies the user as
requiring the client, it downloads the client that matches the operating system of the remote
computer. After downloading, the client installs and configures itself, establishes a secure SSL
connection and either remains or uninstalls itself (depending on the security appliance
configuration) when the connection terminates.

Reference: http://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-
generation-firewalls/100936-asa8x-split-tunnel-anyconnect-config.html

QUESTION NO: 52

Which Cisco IOS VPN technology leverages Ipsec, mGRE, dynamic routing protocol, NHRP, and
Cisco Express Forwarding?

A.
FlexVPN

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Cisco 300-101 Exam
B.
DMVPN

C.
GETVPN

D.
Cisco Easy VPN

Answer: B
Explanation:

Dynamic Multipoint Virtual Private Network (DMVPN) is a dynamic tunneling form of a virtual
private network (VPN) supported on Cisco IOS-based routers and Unix-like Operating Systems
based on the standard protocols, GRE, NHRP and Ipsec. This DMVPN provides the capability for
creating a dynamic-mesh VPN network without having to pre-configure (static) all possible tunnel
end-point peers, including Ipsec (Internet Protocol Security) and ISAKMP (Internet Security
Association and Key Management Protocol) peers. DMVPN is initially configured to build out a
hub-and-spoke network by statically configuring the hubs (VPN headends) on the spokes, no
change in the configuration on the hub is required to accept new spokes. Using this initial hub-
and-spoke network, tunnels between spokes can be dynamically built on demand (dynamic-mesh)
without additional configuration on the hubs or spokes. This dynamic-mesh capability alleviates
the need for any load on the hub to route data between the spoke networks.

DMVPN is combination of the following technologies:

Reference: http://en.wikipedia.org/wiki/Dynamic_Multipoint_Virtual_Private_Network

Topic 5, Infrastructure Security

QUESTION NO: 53

Which traffic does the following configuration allow?

Ipv6 access-list cisco

permit ipv6 host 2001:DB8:0:4::32 any eq ssh

line vty 0 4

ipv6 access-class cisco in

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Cisco 300-101 Exam
A.
all traffic to vty 0 4 from source 2001:DB8:0:4::32

B.
only ssh traffic to vty 0 4 from source all

C.
only ssh traffic to vty 0 4 from source 2001:DB8:0:4::32

D.
all traffic to vty 0 4 from source all

Answer: C
Explanation:

Here we see that the Ipv6 access list called “cisco” is being applied to incoming VTY connections
to the router. Ipv6 access list has just one entry, which allows only the single Ipv6 IP address of
2001:DB8:0:4::32 to connect using SSH only.

QUESTION NO: 54

For troubleshooting purposes, which method can you use in combination with the “debug ip
packet” command to limit the amount of output data?

A.
You can disable the IP route cache globally.

B.
You can use the KRON scheduler.

C.
You can use an extended access list.

D.
You can use an IOS parser.

E.
You can use the RITE traffic exporter.

Answer: C
Explanation:

The “debug ip packet” command generates a substantial amount of output and uses a substantial
"Pass Any Exam. Any Time." - www.actualtests.com 108

Cisco 300-101 Exam
amount of system resources. This command should be used with caution in production networks.
Always use with the access-list command to apply an extended ACL to the debug output.

Reference: http://www.cisco.com/c/en/us/support/docs/security/dynamic-multipoint-vpn-
dmvpn/111976-dmvpn-troubleshoot-00.html

QUESTION NO: 55

Refer to the following access list.

Access-list 100 permit ip any any log

After applying the access list on a Cisco router, the network engineer notices that the router CPU
utilization has risen to 99 percent. What is the reason for this?

A.
A packet that matches access-list with the “log” keyword is Cisco Express Forwarding switched.

B.
A packet that matches access-list with the "log" keyword is fast switched.

C.
A packet that matches access-list with the "log" keyword is process switched.

D.
A large amount of IP traffic is being permitted on the router.

Answer: C
Explanation:

ging-enabled access control lists (ACLs) provide insight into traffic as it traverses the network or is
dropped by network devices. Unfortunately, ACL logging can be CPU intensive and can negatively
affect other functions of the network device. There are two primary factors that contribute to the
CPU load increase from ACL logging: process switching of packets that match log-enabled access
control entries (ACEs) and the generation and transmission of log messages.

Reference: http://www.cisco.com/web/about/security/intelligence/acl-logging.html#4

"Pass Any Exam. Any Time." - www.actualtests.com 109

This action protects the network of the ISP. default gateway Answer: A Explanation: The Unicast RPF feature helps to mitigate problems that are caused by the introduction of malformed or forged (spoofed) IP source addresses into a network by discarding IP packets that lack a verifiable IP source address.com/en/US/docs/ios/12_2/security/configuration/guide/scfrpf.cisco." . router interface D. Cisco 300-101 Exam QUESTION NO: 56 Which address is used by the Unicast Reverse Path Forwarding protocol to validate a packet against the routing table? A. For example.www. loose mode. and VRF mode B. and the rest of the Internet. Reference: http://www. its customer. a number of common types of denial-of-service (DoS) attacks. loose mode. Unicast RPF deflects such attacks by forwarding only packets that have source addresses that are valid and consistent with the IP routing table. "Pass Any Exam.html QUESTION NO: 57 What are the three modes of Unicast Reverse Path Forwarding? A. For Internet service providers (ISPs) that provide public access. can take advantage of forged or rapidly changing source IP addresses to allow attackers to thwart efforts to locate or filter the attacks. and broadcast mode C.com 110 . strict mode. including Smurf and Tribal Flood Network (TFN). source address B. destination address C. strict mode.actualtests. Any Time.

broadcast mode. Cisco 300-101 Exam strict mode. When administrators use Unicast RPF in loose mode. When administrators use Unicast RPF in strict mode. broadcast mode.255. the packet must be received on the interface that the router would use to forward the return packet.255. the packet is discarded.actualtests. Unicast RPF works in one of three different modes: strict mode. If the source IP address is not valid.0.255 any log "Pass Any Exam. Reference: http://www. and VRF mode D. Any Time. a packet that contains a source address for which the return route points to the Null 0 interface will be dropped. accomplish? Router(config)#access-list 101 deny ip 10.www. or VRF mode. Unicast RPF in VRF mode will not be covered in this document.0. and VRF mode Answer: A Explanation: Network administrators can use Unicast Reverse Path Forwarding (Unicast RPF) to help limit the malicious traffic on an enterprise network. the source address must appear in the routing table." .0 0. loose mode. Unicast RPF configured in strict mode may drop legitimate traffic that is received on an interface that was not the router's choice for sending return traffic. Although asymmetric traffic flows may be of concern when deploying this feature. loose mode. Additionally. which allows the use of the default route in the source verification process. Note that not all network devices support all three modes of operation. Unicast RPF loose mode is a scalable option for networks that contain asymmetric routing paths. Administrators can change this behavior using the allow-default option. An access list may also be specified that permits or denies certain source addresses in Unicast RPF loose mode.html QUESTION NO: 58 What does the following access list. This capability can limit the appearance of spoofed addresses on a network. Care must be taken to ensure that the appropriate Unicast RPF mode (loose or strict) is configured during the deployment of this feature because it can drop legitimate traffic. This security feature works by enabling a router to verify the reachability of the source address in packets being forwarded.com/web/about/security/intelligence/unicast-rpf.com 111 . which is applied on the external interface FastEthernet 1/0 of the perimeter router.cisco. Dropping this legitimate traffic could occur when asymmetric routing paths are present in the network.

255.255.0.0.0.0. D. Cisco 300-101 Exam router (config)#access-list 101 deny ip 192.255 192.0. This ACL is used to prevent all packets with a spoofed reserved private source IP address to enter the network.255. It prevents the internal network from being used in spoofed denial of service attacks and logs any exit to the Internet.31.15.0.com 112 .0-192. 192. Any Time.0.255 and logs any intrusion attempts.0.255.0.255 These IP addresses should never be allowed from external networks into a corporate network as they would only be able to reach the network from the outside via routing problems or if the IP addresses were spoofed.255. QUESTION NO: 59 Refer to the following command: "Pass Any Exam. 172.255. The log keyword also enables logging of this intrusion attempt.0 — 172.16.actualtests.www. B. It prevents incoming traffic from IP address ranges 10.0.31. C.0 0.255 any log router (config)#access-list 101 permit ip any any router (config)#interface fastEthernet 1/0 router (config-if)#ip access-group 101 in A.0.0- 172.0 0.255.255.255 172." .0.255.255. It filters incoming traffic from private addresses in order to prevent spoofing and logs any intrusion attempts.16.0.168. Answer: C Explanation: The private IP address ranges defined in RFC 1918 are as follows: 10.168.0 — 192.255 any log router (config)#access-list 101 deny ip 172.168.0-10.168.0 — 10. It prevents private internal addresses to be accessed directly from outside.16.168.

The router will listen to HTTP and HTTP traffic on port 4433. Any Time. Reference: http://www. Answer: A Explanation: To set the secure HTTP (HTTPS) server port number for listening.actualtests.com/en/US/docs/ios-xml/ios/https/command/nm-https-cr-cl- sh. The router will listen on port 4433 for HTTPS traffic. To return the HTTPS server port number to the default. D. Ip http secure-port port-number no ip http secure-port Syntax Description port-number Integer in the range of 0 to 65535 is accepted. Which command should be applied to the configuration to allow this? "Pass Any Exam. The router will listen on port 4433 for HTTP traffic. The router will never accept any HTTP and HTTPS traffic. use the no form of this command.225. The default is 443. Cisco 300-101 Exam router(config)# ip http secure-port 4433 Which statement is true? A." . but the port number must be higher than 1024 unless the default is used. use the ip http secure-port command in global configuration mode.www.cisco.20. C. B.14.html#wp3612805529 QUESTION NO: 60 A network engineer is configuring a routed interface to forward broadcasts of UDP 69. 53.com 113 . and 49 to 172.

router(config-if)#udp helper-address 172.html Topic 6.20.14.14. the following broadcast packets will be forwarded by the router by default: • TFTP — UDP port 69 • Domain Name System (DNS) – UDP port 53 • Time service — port 37 • NetBIOS Name Server — port 137 • NetBIOS Datagram Server — port 138 • Bootstrap Protocol (BOOTP) — port 67 • TACACS – UDP port 49 Reference: http://www.225 D.14.225 B.225 C. The broadcasts will be forwarded to the unicast address which is specified with the ip helper command.20.com 114 .com/163/forward_udp_broadcas. router(config-if)#ip helper-address 172.225 69 53 49 Answer: A Explanation: To let a router forward broadcast packet the command ip helper-address can be used.14.actualtests. ip helper-address {ip address} When configuring the ip helper-address command.20.20. router(config-if)#ip udp helper-address 172.cisco-faq." . Infrastructure Services QUESTION NO: 61 "Pass Any Exam.www. router(config-if)#ip helper-address 172. Any Time. Cisco 300-101 Exam A.

201. However.28 traps version 2c CISCORO B. no encryption) to authenticate polling and trap delivery.28 informs version 2c CISCORO C. username "Pass Any Exam. It’s simple to configure on both the router/switch-side and just as easy on the network monitoring server. The problem of course is that the SNMP statistical payload is not encrypted and authentication is passed in cleartext.ccnpguide.16. Most companies have decided that the information being transmitted isn’t valuable enough to be worth the extra effort in upgrading to SNMPv3. groups.16.201. Any Time. views.com/snmp-version-3/ QUESTION NO: 62 When using SNMPv3 with NoAuthNoPriv.com 115 .201. the engineer is not concerned with authentication or encryption.16. router(config)#snmp-server host 172. Users.16. rather they are simply a means to determine who can authenticate to the device. Which command satisfies the requirements of this scenario? A. router(config)#snmp-server host 172. Cisco 300-101 Exam A network engineer is configuring SNMP on network devices to utilize one-way SNMP notifications. Reference: http://www. router(config)#snmp-server host 172. Like IPv4 to Ipv6." . router(config)#snmp-server host 172. which determines the access policy for its users. but I would suggest otherwise. there are some major changes under the hood.201.28 traps version 3 auth CISCORO D.actualtests.28 informs version 3 auth CISCORO Answer: A Explanation: Most network admins and engineers are familiar with SNMPv2c which has become the dominant SNMP version of the past decade.www. The users are not actual local user accounts. The view is used to define what the user account may access on the IOS device. SNMP version 2 uses community strings (think cleartext passwords. each user is added to a group. which string is matched for authentication? A. SNMP version 3 moves away from the community string approach in favor of user-based authentication and view-based access control. Finally.

Reference: http://blog. Specify a logging rate limit.) A.actualtests. Cisco 300-101 Exam B. Disable event logging on all noncritical items.com/2008/07/19/snmpv3-tutorial/ QUESTION NO: 63 After a recent DoS attack on a network. B. The following security levels exits: “noAuthNoPriv” (no authentiation and no encryption – noauth keyword in CLI). The SNMPv3 implementations could be configured to use either of the models on per-group basis (in case if “noAuthNoPriv” is configured. senior management asks you to implement better logging functionality on all IOS-based devices. Set the logging severity level to 1. D. “AuthPriv” (messages are authenticated and encrypted – priv keyword in CLI). Use the msec option to enable service time stamps. SNMPv3. "Pass Any Exam. community-string D." . Which two actions can you take to provide enhanced logging results? (Choose two. encryption-key Answer: A Explanation: The following security models exist: SNMPv1. password C. Any Time. username serves as a replacement for community string).ine. E. SNMPv2.www. Increase the logging history C. “AuthNoPriv109thernet109ationre authenticated but not encrypted – auth keyword in CLI).com 116 . SNMPv1 and SNMPv2 models only support the “noAuthNoPriv” model since they use plain community string to match the incoming packets.

it is sometimes useful to obtain a full copy of the memory image (called a core dump) to identify the cause of the crash. This can aid in pinpointing the exact time of events. use the logging history command in global configuration mode. SNMP E. Four basic ways exist for setting up the router to generate a core dump: •Using Trivial File Transfer Protocol (TFTP) "Pass Any Exam. QUESTION NO: 64 A network engineer finds that a core router has crashed without warning. and warning levels).actualtests.com 117 . alert.B Explanation: The optional msec keyword specifies the date/time format should include milliseconds. which feature can the engineer use to create a crash collection? A.www. and SNMP messages will be sent by the less sever (5-7) messages. Cisco 300-101 Exam Answer: A. critical. To limit syslog messages sent to the router’s history table and to an SNMP network management station based on severity. In this situation. Any Time. “saving level warnings or higher." . By default. Cisco devices Log error messages of severity levels 0 through 4 (emergency. in other words. error. more granular monitoring can occur. NetFlow Answer: B Explanation: When a router crashes.” By increasing the severity level. core dumps C. Core dumps are generally very useful to your technical support representative. warm reloads D. secure copy protocol B. or to correlate the order that the events happened.

Assuming that an NTP server is already set up. Reference: http://www. D.com/c/en/us/td/docs/ios-xml/ios/bsm/command/bsm-xe-3se-3850-cr- book/bsm-xe-3se-3850-cr-book_chapter_00." . Command Description ntp broadcast client Allows the system to receive NTP broadcast packets on an interface.html "Pass Any Exam.cisco. B.com/en/US/docs/internetworking/troubleshooting/guide/tr19aa. Answer: A Explanation: The NTP service can be activated by entering any ntp command. It enables receiving NTP broadcasts on the interface where the command was executed. C.www. what is the result of the command? A. Cisco 300-101 Exam •Using File Transfer Protocol (FTP) •Using remote copy protocol (rcp) •Using a Flash disk Reference: http://www. When you use the ntp broadcast client command.com 118 . It enables receiving NTP broadcasts on all interfaces globally. It enables a device to receive NTP broadcast and unicast packets.html QUESTION NO: 65 A network engineer is trying to implement broadcast-based NTP in a network and executes the ntp broadcast client command.cisco. It enables a device to be an NTP peer to another device. the NTP service is activated (if it has not already been activated) and the device is configured to receive NTP broadcast packets on a specified interface simultaneously. Any Time.actualtests.

and to transports that use the TCP/UDP/DCCP (Datagram Congestion Control Protocol) pseudo-header and checksum NPTv6 provides a simple and compelling solution to meet the address-independence requirement in Ipv6. D.actualtests. C.www. Answer: C Explanation: RFC 6296 describes a stateless Ipv6-to-Ipv6 Network Prefix Translation (NPTv6) function.org/html/rfc6296 QUESTION NO: 67 Ipv6 has just been deployed to all of the hosts within a network. but not to the servers. and nothing else. Any Time. Which feature allows Ipv6 devices to communicate with Ipv4 servers? A. NPTv6 is defined to include a two-way. checksum-neutral. designed to provide address independence to the edge network. such as SCTP. To avoid as many of the issues associated with NAPT44 as possible." . Cisco 300-101 Exam QUESTION NO: 66 What is a function of NPTv6? A.ietf. It rewrites transport layer headers. Reference: http://tools. algorithmic translation function. B. The address-independence benefit stems directly from the translation function of the network prefix translator. It is checksum-neutral. It maintains a per-node state. It is transport-agnostic with respect to transports that do not checksum the IP header. NAT "Pass Any Exam.com 119 . It interferes with encryption of the full IP payload.

The Ipv6 client embeds the Ipv4 address it wishes to communicate with using these bits. application-oriented Answer: C "Pass Any Exam. DNS64 Answer: C Explanation: NAT64 is a mechanism to allow Ipv6 hosts to communicate with Ipv4 servers. allowing them to communicate. Cisco 300-101 Exam B. NATng C. service-oriented C. dual-stack NAT E. Reference: http://en.com 120 ." . and sends its packets to the resulting address. connectionless-oriented B. connection-oriented D. The NAT64 server is the endpoint for at least one Ipv4 address and an Ipv6 network segment of 32-bits (for instance 64:ff9b::/96. The NAT64 server then creates a NAT-mapping between the Ipv6 and the Ipv4 address.actualtests.www. NAT64 D. Which type of statistics does the engineer see? A. see RFC 6052.wikipedia. Any Time.org/wiki/NAT64 QUESTION NO: 68 A network engineer initiates the ip sla responder tcp-connect command in order to gather statistics for performance gauging. RFC 6146).

0. Answer: A Explanation: Enabling Flow-Label Marking in Packets that Originate from the Device "Pass Any Exam. IP SLAs uses the control protocol to notify the IP SLAs responder to enable the target port temporarily. as shown in the “TCP Connect Operation” figure in the “Information About the IP SLAs TCP Connect Operation” section.www. In this example.html QUESTION NO: 69 A network engineer executes the “ipv6 flowset” command. Flow-set marking in 1280-byte or larger packets is enabled.0.actualtests. Ipv6 flow control is enabled on the router. D. because the target is not a Cisco device and a well-known TCP port is used. C." . the control protocol is disabled on the source (Device B).com/c/en/us/td/docs/ios-xml/ios/ipsla/configuration/15-mt/sla-15-mt- book/sla_tcp_conn.1).cisco. What is the result? A.0. This action allows the responder to reply to the TCP Connect operation. Ipv6 PMTU is enabled on the router. The operation is scheduled to start immediately. there is no need to send the control message. In this example. Device A (target device) Configuration configure terminal ip sla responder tcp-connect ipaddress 10. Any Time.1 port 23 Reference: http://www.com 121 .0. Flow-label marking in 1280-byte or larger packets is enabled. B. Cisco 300-101 Exam Explanation: Configuration Examples for IP SLAs TCP Connect Operations The following example shows how to configure a TCP Connection-oriented operation from Device B to the Telnet port (TCP port 23) of IP Host 1 (IP address 10.

" . Cisco 300-101 Exam This feature allows the device to track destinations to which the device has sent packets that are 1280 bytes or larger. Step 2 configure terminal Example: Device# configure terminal Enters global configuration mode. enable 2.com 122 . SUMMARY STEPS 1. clear ipv6 mtu DETAILED STEPS Command or Action Purpose Step 1 enable Example: Device> enable Enables privileged EXEC mode. configure terminal 3. exit 5.www. Step 3 ipv6 flowset "Pass Any Exam. Any Time.actualtests. ipv6 flowset 4.

com 123 . Reference: http://www.1.actualtests.1." . output drops B.1 Specifies the source address or interface.1 (1000) and 10. fragmentation failures D. Cisco 300-101 Exam Example: Device(config)# ipv6 flowset Configures flow-label marking in 1280-byte or larger packets sent by the device. Which line in the output indicates that the send queue is full and export packets are not being sent? A.2. The ports are in parentheses.1 Specifies the export destinations and ports.html QUESTION NO: 70 A network engineer executes the show ip flow export command. adjacency issues Answer: A Explanation: Table 5 show ip flow export Field Descriptions Field Description Exporting flows to 10. Any Time.1. Exporting using source IP address 10. "Pass Any Exam.3.cisco. enqueuing for the RP C.www.com/c/en/us/td/docs/ios-xml/ios/ipv6_basic/configuration/15-mt/ip6b- 15-mt-book/ip6-mtu-path-disc.1.

and the total number of flows contained within them. Any Time. 0 export packets were dropped enqueuing for the RP 0 export packets were dropped due to IPC rate limiting Indicates that there was a problem transferring the export packet between the RP and the line card. Cisco 300-101 Exam Version 5 flow records Specifies the version of the flow. 0 export packets were dropped due to fragmentation failures 0 export packets were dropped due to encapsulation fixup failures Indicates that the packet was dropped because of problems constructing the IP packet.com/c/en/us/td/docs/ios/12_0s/feature/guide/oaggnf. 0 export packets were sent up to process level The packet could not be processed by CEF or by fast switching.www. possibly because another feature requires running on the packet.actualtests. 0 flows failed due to lack of export packet No memory was available to create an export packet. Which functions do the two commands serve in this scenario? "Pass Any Exam.com 124 . 11 flows exported in 8 udp datagrams The total number of export packets sent.cisco." . 0 export packets were dropped due to output drops Indicates that the send queue was full while the packet was being transmitted. 0 export packets were dropped due to no fib 0 export packets were dropped due to adjacency issues Indicates that CEF was unable to switch the packet or forward it up to the process level. Reference: http://www.html QUESTION NO: 71 A network engineer is asked to configure a “site-to-site” Ipsec VPN tunnel. One of the last things that the engineer does is to configure an access list (access-list 1 permit any) along with the command ip nat inside source list 1 int s0/0 overload.

The command access-list 1 permit any defines only one machine that is allowed through the tunnel. Cisco 300-101 Exam A.64 255. The command access-list 1 defines interesting traffic that is allowed through the tunnel. B.0 ip nat outside "Pass Any Exam. D.255.255. Answer: D Explanation: Configuring NAT to Allow Internal Users to Access the Internet Using Overloading NAT Router interface 116thernet 0 ip address 10.20.0 ip nat inside !--.www. The command ip nat inside source list 1 int s0/0 overload provides “many-to-one” access for all devices on a defined segment to share a single IP address upon exiting the external interface.255." .1 255.0 ip nat inside !--.16. Interface serial 0 ip address 172.Defines Ethernet 0 with an IP address and as a NAT inside interface.255. Interface 116thernet 1 ip address 10.10.10.Defines Ethernet 1 with an IP address and as a NAT inside interface.actualtests. The command ip nat inside source list 1 int s0/0 overload disables “many-to-one” access for all devices on a defined segment to share a single IP address upon exiting the external interface.10.255.255.1 255.10. Any Time. C.com 125 .

shtml "Pass Any Exam. Reference: http://www.Access-list 7 permits packets with source addresses ranging from !--.16.10. 172.31 !--.31 access-list 7 permit 10.20.are permitted by access-list 7 has the source address !--.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094e77.devices to be translated to the same valid IP address.31 and 10.Defines serial 0 with an IP address and as a NAT outside interface. ip nat inside source list 7 pool ovrld overload ! ! ! ! !--. which allows multiple inside !--.0 through 10.cisco.10.0 0. !--.16.Translations are overloaded.20.0 0.0 through 10.www.10.10.0." .31.actualtests.10.10.0. The keyword overload used in the ip nat inside source list 7 pool ovrld overload command allows NAT to translate multiple inside devices to the single address in the pool.1. Access-list 7 permit 10.10.1 172.10.10.1 prefix 24 ! !--.Indicates that any packets received on the inside interface that !--. Cisco 300-101 Exam !--.com 126 .10.20. Any Time. the NAT pool “ovrld”only has a range of one address.0.10.10. Ip nat pool ovrld 172.0.translated to an address out of the NAT pool named ovrld.16.10.Defines a NAT pool named ovrld with a range of a single IP !--. Note in the previous second configuration.address.

com 127 .cisco. Reference: http://www. Answer: A Explanation: The standby track command allows you to specify another interface on the router for the HSRP process to monitor in order to alter the HSRP priority for a given group.www.com/c/en/us/support/docs/ip/hot-standby-router-protocol-hsrp/13780- 6. In order to identify which specific type of traffic is causing this slowness. Enable HSRPv2 under global configuration. the HSRP priority is reduced. and bandwidth-intensive applications are identified as the root cause. C. Which feature should the engineer use to gather the required information? A. Cisco 300-101 Exam QUESTION NO: 72 A network engineer is configuring a solution to allow failover of HSRP nodes during maintenance windows. Track the up/down state of a loopback interface and shut down this interface during maintenance. D. This means that another HSRP router with higher priority can become the active router if that router has standby preempt enabled. which allows for maintenance mode.html QUESTION NO: 73 A network engineer is notified that several employees are experiencing network performance related issues. If the line protocol of the specified interface goes down. B. so when this interface is shut down the HSRP priority for that router will be lowered and the other HSRP router will then become the active one. Any Time. information such as the source/destination IP and Layer 4 port numbers is required. Loopback interfaces can be tracked. Which action will allow for manual switching of HSRP nodes? A. Disable and enable all active interfaces on the active HSRP node. "Pass Any Exam.actualtests. as an alternative to powering down the active router and letting the network respond accordingly." . Adjust the HSRP priority without the use of preemption.

What can you determine based on this information? A. The command ip flow-capture fragment-offset has been enabled.actualtests. Cisco Express Forwarding has not been configured globally.html QUESTION NO: 74 An organization decides to implement NetFlow on its network to monitor the fluctuation of traffic that is disrupting core services. After reviewing the output of NetFlow. "Pass Any Exam. the network engineer is unable to see OUT traffic on the interfaces.com 128 . D. Specifically. Syslog E. a flow is identified as the combination of the following key fields: Reference: http://www. B. Cisco 300-101 Exam SNMP B.www.com/en/US/docs/ios-xml/ios/netflow/configuration/12-4t/cfg-nflow- data-expt. WCCP Answer: C Explanation: NetFlow Flows Key Fields A network flow is identified as a unidirectional stream of packets between a given source and destination--both are defined by a network-layer IP address and transport-layer source and des—nation port numbers. C. Cisco IOS EEM C. Flow Export version 9 is in use. Any Time." . NetFlow D. NetFlow output has been filtered by default.cisco.

ie. 2. What is CEF? CEF is one of the available switching options for Cisco routers. If the destination is reachable. 2. CEF can switch traffic faster than route-caching using fast-switching How to enable CEF? CEF is disabled by default on all routers except the 7xxx series routers. CEF decides through which "Pass Any Exam. Better performance than fast-switching (the default) and takes less CPU to perform the same task. CEF offers the following benefits: 1. When enabled. Switching is what a router does when it makes the following decisions: 1. Enabling and Disabling CEF is easy. Any Time. Router# config t Router(config)# ip cef Router(config)# To disable CEF. Cisco 300-101 Exam Answer: A Explanation: We came across a recent issue where a user setup a router for NetFlow export but was unable to see the OUT traffic for the interfaces in NetFlow Analyzer. called the Forwarding Information Base (FIB). NetFlow Analyzer started showing OUT traffic for the interfaces. CEF was enabled at the global level and within seconds.www. This decision- making process is called “switching”. Whether to forward or not forward the packets after checking that the destination for the packet is reachable. CEF creates its own table. ‘no ip cef‘." . allows for advanced features like NBAR 3. To enable CEF.actualtests.com 129 . Why CEF Needed when enabling NetFlow ? CEF is a prerequisite to enable NetFlow on the router interfaces. This is why this topic is about Cisco Express Forwarding. Based on the routing table. The FIB is organized differently than the routing table and CEF uses the FIB to decide which interface to send traffic from. Every NetFlow configuration aspect was checked and nothing incorrect was found. That is when we noticed the ‘no ip cef’ command on the router. Overall. What is switching? A Router must make decisions about where to forward the packets passing through. go into global configuration mode and enter the CEF command. what is the next hop of the router and which interface will the router use to get to that destination. simply use the ‘no’ form of the command.

configuration of the specified flow exporter B. the NetFlow packets exported from the router will have “Destination interface” as “null” and this leads NetFlow Analyzer to show no OUT traffic for the interfaces. Reference: https://blogs. If the CEF is disabled on the router.com/network-2/netflowanalyzer/2010/05/19/need-for-cef- in-netflow-data-export.manageengine. Cisco 300-101 Exam interface traffic is exiting the router. configuration of the specified flow monitor Answer: B Explanation: show flow exporter exporter-name Example: Device# show flow exporter FLOW_EXPORTER-1 "Pass Any Exam. Any NetFlow analyzer product will calculate the OUT traffic for an interface based on the Destination Interface value present in the NetFlow packets exported from the router. Without enabling the CEF on the router. current status of the specified flow exporter C. The following command is entered: switch#show flow exporter Flow_Exporter-1 What is the expected output? A.com 130 . status and statistics of the specified flow monitor D.actualtests. Any Time.www." . the NetFlow packets did not mark the destination interfaces and so NetFlow Analyzer was not able to show the OUT traffic for the interfaces.html QUESTION NO: 75 A network engineer has left a NetFlow capture enabled over the weekend to gather information regarding excessive bandwidth utilization.

" . NAT44 C. The use cases for NPTv6 outlined in the RFC include peering with partner networks.com/c/dam/en/us/td/docs/solutions/SBA/August2012/Cisco_SBA_BN_IPv6Addre ssingGuide-Aug2012. 1-to-1.cisco. Any Time.com 131 . and redundancy and load sharing.com/en/US/docs/ios-xml/ios/fnetflow/configuration/15-mt/cfg-de- fnflow-exprts. What is the best solution to ensure compliance with this new policy? A. NPTv4 E. NAT64 B. Reference: http://www.html QUESTION NO: 76 A company’s corporate policy has been updated to require that stateless.pdf "Pass Any Exam. and Ipv6 to Ipv6 translations at the Internet edge are performed. Cisco 300-101 Exam (Optional) Displays the current status of the specified flow exporter Reference: http://www. The translation mechanism is stateless and provides a 1:1 relationship between the internal addresses and external addresses. multi homing. NATv6 D. NPTv6 Answer: E Explanation: NPTv6 provides a mechanism to translate the private internal organization prefixes to public globally reachable addresses.cisco.www.actualtests.

com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6- solution/white_paper_c11-676278.) A.actualtests. "Pass Any Exam. stateless B. or an edge network). The DnS64 and NAT64 functions are completely separated. Reference: http://www.com 132 . port redirection D. an access. session handling Answer: A. or NAT64. Any Time. stateless translation E. DNS B." . which is essential to the superiority of NAT64 over NAT-PT.B Explanation: Work Address Translation IPv6 to IPv4.html QUESTION NO: 78 Which two methods of deployment can you use when implementing NAT64? (Choose two. This solution allows both enterprises and ISPs to accelerate IPv6 adoption while simultaneously handling IPv4 address depletion. stateful C.) A.www. technology facilitates communication between IPv6-only and IPv4-only hosts and networks (whether in a transit. NAT C.cisco. Cisco 300-101 Exam QUESTION NO: 77 Which two functions are completely independent when implementing NAT64 over NAT-PT? (Choose two.

" .www. Cisco 300-101 Exam manual D.com 133 . functional G. Table 2. dynamic Answer: A. static F. hence lacks in end-to-end address transparency No state or bindings created on the translation State or bindings are created on every unique translation Requires IPv4-translatable IPv6 addresses assignment (mandatory requirement) No requirement on the nature of IPv6 address assignment Requires either manual or DHCPv6 based address assignment for IPv6 hosts Free to choose any mode of IPv6 address assignment viz. Manual. The following table provides a high-level overview of the most relevant differences. Any Time. DHCPv6. Differences Between Stateless NAT64 and Stateful NAT64 Stateless NAT64 Stateful NAT64 1:1 translation 1:N translation No conservation of IPv4 address Conserves IPv4 address Assures end-to-end address transparency and scalability Uses address overloading. automatic E. SLAAC "Pass Any Exam.actualtests.B Explanation: While stateful and stateless NAT64 perform the task of translating IPv4 packets into IPv6 packets and vice versa. there are important differences.

com 134 .cisco. Cisco 300-101 Exam Reference: http://www. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface.com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6- solution/white_paper_c11-676277.actualtests. flow collector Answer: A Explanation: Flow monitors are the NetFlow component that is applied to interfaces to perform network traffic monitoring. Any Time.com/c/en/us/td/docs/ios/fnetflow/command/reference/fnf_book/fnf_01. "Pass Any Exam.cisco." . You add the record to the flow monitor after you create the flow monitor. flow exporter C. Flow monitors consist of a record and a cache. flow sampler D. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record.www.html#wp13 14030 QUESTION NO: 80 Refer to the exhibit. flow monitor B. which is configured for the flow monitor and stored in the flow monitor cache.html QUESTION NO: 79 Which NetFlow component is applied to an interface and collects information about flows? A. Reference: http://www.

then NetFlow might sample the 5th. each packet randomly chosen from every group of 100 packets. The sampler matched 10 packets. B. if you set the sampling rate to 1 out of 100 packets. 302nd. 199th. The n value is a parameter from 1 to 65535 packets that you can configure. incoming packets are randomly selected so that one out of each n sequential packets is selected on average for NetFlow processing. one packet every 100 seconds. This sample configuration provides NetFlow data on 1 percent of total traffic. The sampler matched 10 packets.actualtests. For example. The sampler matched 10 packets. Table 2 show flow-sampler Field Descriptions Field Description Sampler Name of the flow sampler id Unique ID of the flow sampler packets matched Number of packets matched for the flow sampler mode "Pass Any Exam. In the random sampling mode that Random Sampled NetFlow uses. Cisco 300-101 Exam Which statement about the output of the show flow-sampler command is true? A. The sampler matched 10 packets.com 135 . C.www." . 120th. D. one packet every 100 packets. each one randomly chosen from every 100-second interval. Answer: A Explanation: The sampling mode determines the algorithm that selects a subset of traffic for NetFlow processing. and so on packets. Any Time.

1 and port UDP/5858.10." .10.1 5858? A.10. It configures the router to receive cache flow information about flows with destination IP 10. C.10. It configures the router to receive cache flow information from IP 10.com/c/en/us/td/docs/ios/12_0s/feature/guide/nfstatsa. It configures the router to export cache flow information about flows with destination IP 10.www. B.com 136 . Answer: A Explanation: To enable the exporting of information in NetFlow cache entries. It configures the router to export cache flow information to IP 10.1 on port UDP/5858.10. use the ip flow-export destination command in global configuration mode.10. Any Time.10.10. Udp-port UDP protocol-specific port number.10.1 and port UDP/5858. D.cisco. Syntax Description ip-address IP address of the workstation to which you want to send the NetFlow information.actualtests. "Pass Any Exam.10. Cisco 300-101 Exam Flow sampling mode sampling interval is Flow sampling interval (in packets) Reference: http://www.1 on port UDP/5858.html#wp1084291 QUESTION NO: 81 What is the result of the command ip flow-export destination 10.

"Pass Any Exam. or DHCPLEASEQUERY packet) from a DHCP server outside the network or firewall.www. you can enable the DHCP option-82 on untrusted port feature. Any Time. and the source MAC address and the DHCP client hardware address do not match. •The switch receives a packet on an untrusted interface.com/c/en/us/td/docs/ios/12_0s/feature/guide/12s_mdnf. which enables untrusted aggregation- switch ports to accept DHCP packets that include option-82 information. and the interface information in the binding table does not match the interface on which the message was received. discover messages B. Cisco 300-101 Exam Reference: http://www. •The switch receives a DHCP packet that includes a relay agent IP address that is not 0.html#wp1023091 QUESTION NO: 82 Which type of traffic does DHCP snooping drop? A. To support trusted edge switches that are connected to untrusted aggregation-switch ports. Configure the port on the edge switch that connects to the aggregation switch as a trusted port." . This check is performed only if the DHCP snooping MAC address verification option is turned on. DHCP messages where the destination MAC and client MAC do not match Answer: B Explanation: The switch validates DHCP packets received on the untrusted interfaces of VLANs with DHCP snooping enabled. DHCPNAK. •The switch receives a DHCPRELEASE or DHCPDECLINE message from an untrusted host with an entry in the DHCP snooping binding table. The switch forwards the DHCP packet unless any of the following conditions occur (in which case the packet is dropped): •The switch receives a packet (such as a DHCPOFFER.actualtests.com 137 .0. DHCPACK. traffic from a trusted DHCP server to client D.0.0. DHCP messages where the source MAC and client MAC do not match C.cisco.

router#show memory dead D. router#show memory events E. Any Time." .html Topic 7.cisco.com 138 . router#show memory processor statistics Answer: A.actualtests. router#show memory allocating-process table B. Mix Questions QUESTION NO: 83 Which two commands would be used to troubleshoot high memory usage for a process? (Choose two. router#show memory summary C.com ! "Pass Any Exam.B Explanation: QUESTION NO: 84 The following configuration is applied to a router at a branch site: ipv6 dhcp pool dhcp-pool dns-server 2001:DB8:1:B::1 dns-server 2001:DB8:3:307C::42 domain-name example. Cisco 300-101 Exam Reference: http://www.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12- 2SX/configuration/guide/book/snoodhcp.) A.www.

SLAAC C.) A. Hop Limit E. BOOTP Answer: A. Traffic Class B. in order to filter future attacks? (Choose three. which two dynamic IPv6 addressing mechanisms could you use on end hosts to provide end-to-end connectivity? (Choose two. Source address C.com 139 ." . Fragment Offset Answer: A. Destination Address F. EUI-64 B.actualtests. Which three elements can you use to identify an IPv6 packet via its header.C. Flow Label D.) A. Any Time.D "Pass Any Exam. DHCPv6 D. Cisco 300-101 Exam If IPv6 is configured with default settings on all interfaces on the router.www.B Explanation: QUESTION NO: 85 The enterprise network WAN link has been receiving several denial of service attacks from both IPv4 and IPv6 sources.

Which two events will occur following link failure between R2 and R3? (Choose two." . adding all interfaces to the global and VRF routing tables Answer: A. adding dynamic routing between the two routers and advertising the loopback D.B Explanation: QUESTION NO: 87 Refer to the exhibit. Cisco 300-101 Exam Explanation: QUESTION NO: 86 A network engineer has set up VRF-Lite on two routers where all the interfaces are in the same VRF.com 140 .actualtests. adding a static route for the VRF that points to the loopback interface F. Which two configurations enable the local or remote router to ping the loopback from any existing interface? (Choose two. a new loopback is added to Router 1. but it cannot ping any of the existing interfaces.) A. adding a static route for the VRF that points to the global route table B.) "Pass Any Exam. The network setup is running the RIP routing protocol. adding the loopback to the VRF C.www. At a later time. adding the IP address of the loopback to the export route targets for the VRF E. Any Time.

2. reduced configuration and deployment time for dot1q trunking "Pass Any Exam. Cisco 300-101 Exam A. E.actualtests.2. After communication fails and after the hold-down timer expires. and usability D. D. R2 will advertise network 192.168. Any Time. R3 will not accept any further updates from R2. enhanced management.168. C.www.0/27 with a hop count of 16. Answer: A. troubleshooting.2.0/27 with a hop count of 16 to R1.168.168." . simplified Layer 3 network virtualization B. due to the split-horizon loop prevention mechanism.0/27 from its routing table. R1 will reply to R2 with the advertisement for network 192. B. improved shared services support C.0/27 route from its routing table.C Explanation: QUESTION NO: 88 Which three benefits does the Cisco Easy Virtual Network provide to an enterprise network? (Choose three. R1 will remove the 192.) A.2. R2 will not send any advertisements and will remove route 192.com 141 .

windowing D. global synchronization Answer: A Explanation: QUESTION NO: 90 Which traffic characteristic is the reason that UDP traffic that carries voice and video is assigned to the queue only on a link that is at least 768 kbps? A. TCP E.B.C Explanation: QUESTION NO: 89 Which technology was originally developed for routers to handle fragmentation in the path between end points? A. increased network performance and throughput F. "Pass Any Exam. PMTUD B.www." . Cisco 300-101 Exam E.actualtests. Any Time. MSS C.com 142 . typically is not fragmented B. decreased BGP neighbor configurations Answer: A.

They become authenticated and unencrypted. Verify NHRP. Any Time. causes excessive delays for video traffic Answer: A Explanation: QUESTION NO: 91 A network administrator is troubleshooting a DMVPN setup between the hub and the spoke. Verify crypto maps. a network engineer is using the AuthNoPriv security level. causes windowing D. Which action should the administrator take before troubleshooting the IPsec configuration? A. B. Answer: A Explanation: QUESTION NO: 92 To configure SNMPv3 implementation. B.actualtests." . What effect does this action have on the SNMP messages? A. D.www. Verify the GRE tunnels.com 143 . C. "Pass Any Exam. Verify ISAKMP. Cisco 300-101 Exam typically is fragmented C. They become unauthenticated and unencrypted.

Which type of IPv6 address is portrayed in the exhibit? A. D. The command is executed while configuring a point-to-multipoint Frame Relay interface. link-local B." . when packets on the interface are received and logging buffered is enabled C. when packets on the interface are received and the interface is shut down Answer: A Explanation: QUESTION NO: 94 Refer to the exhibit. when packets on the interface are received and the interface is operational B. "Pass Any Exam. In which situation is the debugging output generated? A. Any Time. They become authenticated and encrypted. Cisco 300-101 Exam C.www.actualtests. They become unauthenticated and encrypted.com 144 . when packets on the interface are received and forwarded to a configured syslog server D. Answer: B Explanation: QUESTION NO: 93 A network engineer is investigating the cause of a service disruption on a network segment and executes the debug condition interface fastethernet f0/0 command.

multicast Answer: A Explanation: QUESTION NO: 95 An engineer executes the ip flow ingress command in interface configuration mode. C. It requires and enhances the use of VRF-Lite. It enables the collection of IP flow samples leaving the interface. B. Answer: A Explanation: QUESTION NO: 96 What is the primary service that is provided when you implement Cisco Easy Virtual Network? A. B. It enables IP flow collection on the physical interface and its subinterfaces.www. Cisco 300-101 Exam site-local C. It enables IP flow while disabling IP CEF on the interface. D. global D. What is the result of this action? A.com 145 . It reduces the need for common services separation.actualtests. "Pass Any Exam. It enables the collection of IP flow samples arriving to the interface. Any Time." .

by creating a new FIB entry for the packet D. B. It introduces multi-VRF and label-prone network segmentation. Dual stack translates IPv6 addresses to IPv4 addresses. D. "Pass Any Exam.actualtests. by dropping the packet C. It allows for traffic separation and improved network efficiency. by forwarding the packet B. by looking in the routing table for an alternate FIB entry Answer: B Explanation: QUESTION NO: 98 Which statement about dual stack is true? A. Cisco 300-101 Exam C.com 146 . Answer: C Explanation: QUESTION NO: 97 How does an IOS router process a packet that should be switched by Cisco Express Forwarding without an FIB entry? A. Any Time.www." . Dual stack translates IPv4 addresses to IPv6 addresses. C. Dual stack means that devices are able to run IPv4 and IPv6 in parallel.

iBGP D. Answer: B Explanation: QUESTION NO: 99 Which PPP authentication method sends authentication information in cleartext? A. PAP Answer: D Explanation: QUESTION NO: 100 A router receives a routing advertisement for the same prefix and subnet from four different routing protocols. OSPF C. RIP B. MS CHAP B. Cisco 300-101 Exam D.www. Which advertisement is installed in the routing table? A. CDPCP C. EIGRP "Pass Any Exam. Dual stack changes the IP addresses on hosts from IPv4 to IPv6 automatically.actualtests.com 147 ." . Any Time. CHAP D.

" . Ethernet0/0 B. a public AS number C.www. which route is the summarized route? A. Ethernet0/0 D. OI 2001:DB8::/48 [110/100] via FE80::A8BB:CCFF:FE00:6F00. Any Time. a private AS number B. Ethernet0/0 C. When summarizing these routes. OI 2001:DB8::/24 [110/100] via FE80::A8BB:CCFF:FE00:6F00.com 148 . "Pass Any Exam.actualtests. Cisco 300-101 Exam Answer: D Explanation: QUESTION NO: 101 Refer to the exhibit. OI 2001:DB8::/64 [110/100] via FE80::A8BB:CCFF:FE00:6F00. OI 2001:DB8::/32 [110/100] via FE80::A8BB:CCFF:FE00:6F00. Ethernet0/0 Answer: A Explanation: QUESTION NO: 102 Which type of BGP AS number is 64591? A.

Either a firewall between the two routers or an ACL on the router is blocking IP protocol number 57. C.com 149 . a public 4-byte AS number Answer: A Explanation: QUESTION NO: 103 Refer to the exhibit." .www. What is the reason for this? A. After configuring GRE between two routers running OSPF that are connected to each other via a WAN link. Any Time. D. Cisco 300-101 Exam a private 4-byte AS number D. B. Either a firewall between the two routers or an ACL on the router is blocking UDP 57. Either a firewall between the two routers or an ACL on the router is blocking TCP 47.actualtests. Answer: A Explanation: QUESTION NO: 104 "Pass Any Exam. Either a firewall between the two routers or an ACL on the router is blocking IP protocol number 47. a network engineer notices that the two routers cannot establish the GRE tunnel to begin the exchange of routing updates.

GREVPN Answer: B Explanation: QUESTION NO: 106 Which parameter in an SNMPv3 configuration offers authentication and encryption? "Pass Any Exam. Cisco 300-101 Exam Which Cisco VPN technology can use multipoint tunnel. DMVPN B. resulting in a single GRE tunnel interface on the hub.actualtests. GETVPN D.com 150 . to support multiple connections from multiple spoke devices? A." . Cisco Easy VPN D. FlexVPN Answer: A Explanation: QUESTION NO: 105 Which Cisco VPN technology uses AAA to implement group policies and authorization and is also used for the XAUTH authentication method? A. Any Time. GETVPN C. Cisco Easy VPN C. DMVPN B.www.

Answer: B Explanation: QUESTION NO: 108 Refer to the exhibit. Any Time. noauth C. The router acts as an authoritative NTP clock with a priority number of 10.www." . The router acts as an authoritative NTP clock at stratum 10.com 151 . The DHCP client is unable to receive a DHCP address from the DHCP server. Cisco 300-101 Exam A. "Pass Any Exam. The router acts as an authoritative NTP clock for 10 minutes only. priv D. B. D. auth B. C. The router acts as an authoritative NTP clock and allows only 10 NTP client connections. secret Answer: C Explanation: QUESTION NO: 107 Refer to the following configuration command.actualtests. router (config-line)# ntp master 10 Which statement about this command is true? A.

1 255.0 255.1.255.252 ! ip route 172.1.255 Answer: A Explanation: "Pass Any Exam.255. RouterB(config-if)# ip helper-address 172.255.31.1 D.com 152 .255. RouterB(config-if)# ip helper-address 172.1.0 10.16.2 Which configuration is required on the Router B fastethernet 0/0 port in order to allow the DHCP client to successfully receive an IP address from the DHCP server? A.1.1.1 255.255.1. RouterB(config-if)# ip helper-address 172.0 interface serial 0/0 ip address 10.1.255." .255. Any Time. RouterB(config-if)# ip helper-address 255.16.www. Cisco 300-101 Exam Consider the following output: hostname RouterB ! interface fastethernet 0/0 ip address 172.31.1.1 C.255.1.actualtests.16.2 B.

any other return code means that the track's state is up. When tracking state. C. Which statement about state tracking is true? A. It is used to translate IPv6 prefixes to IPv4 subnets with appropriate masks. When tracking state. B. B. C. Answer: A "Pass Any Exam. D. When tracking state.com 153 . an OK return code means that the track's state is down.actualtests. an OK or over threshold return code means that the track's state is down. any other return code means that the track's state is down. It is used to translate an IPv6 address prefix to another IPv6 prefix. Any Time. It is used to translate IPv4 prefixes to IPv6 prefixes. When tracking state. an OK return code means that the track's state is up. Cisco 300-101 Exam QUESTION NO: 109 Which statement about the NPTv6 protocol is true? A. D. Answer: B Explanation: QUESTION NO: 110 Two aspects of an IP SLA operation can be tracked: state and reachability." . any other return code means that the track's state is down. an OK or over threshold return code means that the track's state is up. any other return code means that the track's state is up.www. It is used to translate IPv4 addresses to IPv6 link-local addresses.

Jitter is being tested with TCP packets to port 65051. The packets that are being sent use DSCP EF. D." . Which statement about the configuration is true? A. Answer: A Explanation: QUESTION NO: 112 Refer to the exhibit. Any Time. 20 packets are being sent every 30 seconds. B.actualtests.www. The monitor starts at 12:05:00 a. Which statement about the command output is true? "Pass Any Exam.m. Cisco 300-101 Exam Explanation: QUESTION NO: 111 Refer to the exhibit. C.com 154 .

1 on UDP port 5127.10.10.com 155 . C.20 192.1 on TCP port 5127. The router exports flow information to 10.0 Upon entering the command on the IOS router.www.1. B. The router receives flow information from 10. The router exports flow information to 10.1. Answer: A Explanation: QUESTION NO: 113 A network engineer is trying to modify an existing active NAT configuration on an IOS router by using the following command: (config)# no ip nat pool dynamic-nat-pool 192. Any Time.10.10. cannot destroy "Pass Any Exam.255. D.2 on UDP port 5127.2 on TCP port 5127.10.10.actualtests. the following message is seen on the console: %Dynamic Mapping in Use. The router receives flow information from 10. Cisco 300-101 Exam A. Cannot remove message or the %Pool outpool in use.1.10." .1.255.10.254 netmask 255.

Clear the IP NAT translations using the reload command on the router. Answer: B Explanation: QUESTION NO: 114 Which IPv6 address type is seen as the next-hop address in the output of the show ipv6 rip RIPng database command? A. then replace the NAT configuration quickly. Cisco 300-101 Exam What is the least impactful method that the engineer can use to modify the existing IP NAT configuration? A. before any new NAT entries are populated into the translation table due to active NAT traffic. before any new NAT entries are populated into the translation table due to active NAT traffic. Clear the IP NAT translations using the clear ip nat traffic * " command. anycast E. then replace the NAT configuration quickly.www. before any new NAT entries are populated into the translation table due to active NAT traffic.com 156 . Clear the IP NAT translations using the clear ip nat table * " command. B. Clear the IP NAT translations using the clear ip nat translation * " command. Any Time. C. D. before any new NAT entries are populated into the translation table due to active NAT traffic." . site-local D. link-local B. global C. then replace the NAT configuration quickly. then replace the NAT configuration quickly. multicast "Pass Any Exam.actualtests.

what is the bandwidth delay product? A.B.000 bytes B. Cisco 300-101 Exam Answer: A Explanation: QUESTION NO: 115 Which three items can you track when you use two time stamps with IP SLAs? (Choose three. packet loss D.C Explanation: QUESTION NO: 116 If the total bandwidth is 64 kbps and the RTT is 3 seconds.actualtests." . "Pass Any Exam. jitter C. load E. throughput F.000 bytes C. 8.000 bytes D.www.) A. delay B.com 157 . Any Time. 24. 16. path Answer: A.

It extends the IP address to identify which VRF instance it belongs to. "Pass Any Exam." . It enables multicast distribution for VRF-Lite setups to enhance IGP routing protocol capabilities. B.000 bytes Answer: C Explanation: QUESTION NO: 117 What are the default timers for RIPng? A. Any Time.www.com 158 . Cisco 300-101 Exam 32. Update: 5 seconds Expire: 30 seconds Flush: 40 seconds Answer: A Explanation: QUESTION NO: 118 What is the purpose of the route-target command? A. It manages the import and export of routes between two or more VRF instances. Update: 10 seconds Expire: 60 seconds Flush: 80 seconds D. 62. Update: 30 seconds Expire: 180 seconds Flush: 240 seconds B. D.000 bytes E. Update: 20 seconds Expire: 120 seconds Flush: 160 seconds C.actualtests. C.

SAA E. Cisco 300-101 Exam It enables multicast distribution for VRF-Lite setups to enhance EGP routing protocol capabilities. route types "Pass Any Exam.www.actualtests." . addressing information B. In order to update the next hop for the interesting traffic.com 159 . IP SLA D. SNMP B. which feature must be used in conjunction with the newly created tracking object to manipulate the traffic flow as required? A. Answer: C Explanation: QUESTION NO: 119 A network engineer has configured a tracking object to monitor the reachability of IP SLA 1. Any Time. PBR C. if the required matching is based on which criteria? A. ACLs F. IGP Answer: B Explanation: QUESTION NO: 120 A route map uses an ACL.

Which option is the problem? A." . metrics Answer: A Explanation: QUESTION NO: 121 Various employees in the same department report to the network engineer about slowness in the network connectivity to the Internet.com 160 . two-way "Pass Any Exam. Cisco 300-101 Exam C. the engineer finds traffic flood in the network. Any Time. Upon monitoring. AS paths D. wrong proxy configured Answer: B Explanation: QUESTION NO: 122 Which type of handshake does CHAP authentication use to establish a PPP link? A. They are also having latency issues communicating to the network drives of various departments.actualtests. network switching loop C. network outage B. one-way B. router configuration issue D.www.

PAP C. WAP B.com 161 . RADIUS Answer: B. "Pass Any Exam. CHAP D.www. four-way Answer: C Explanation: QUESTION NO: 123 Which two authentication protocols does PPP support? (Choose two. Multiple PPPoE clients can use the same dialer interface. EAP E." . B.C Explanation: QUESTION NO: 124 Which statement is a restriction for PPPoE configuration? A. Multiple PPPoE clients can use the same dialer pool.actualtests. Cisco 300-101 Exam C. three-way D.) A. Any Time.

www. B. This configuration represents a complete PPPoE client configuration on an Ethernet connection. D. A PPPoE session can be initiated only by the access concentrator.actualtests. Answer: D Explanation: "Pass Any Exam. This configuration is incorrect because the dialer interface number must be the same as the dialer pool number. Any Time. A PPPoE session can be initiated only by the client. Which statement about the configuration is true? A.com 162 . C. Cisco 300-101 Exam C. D. Answer: C Explanation: QUESTION NO: 125 Refer to the exhibit. This configuration is missing an IP address on the dialer interface." . This configuration is incorrect because the MTU must match the ppp-max-payload that is defined.

Cisco 300-101 Exam QUESTION NO: 126 A company has their headquarters located in a large city with a T3 frame relay link that connects 30 remote locations that each have T1 frame relay connections. IPsec VPN C.actualtests. ISDN interfaces E.) A. traffic shaping B.D Explanation: "Pass Any Exam. Which technology must be configured to prevent remote sites from getting overwhelmed with traffic and prevent packet drops from the headquarters? A.com 163 . MPLS Answer: A Explanation: QUESTION NO: 127 On which two types of interface is Frame Relay switching supported? (Choose two. Any Time." . auxiliary interfaces Answer: A. GRE VPN D. serial interfaces B. fiber interfaces D.www. Ethernet interfaces C.

Cisco 300-101 Exam QUESTION NO: 128 In IPv6.www. How is the prefix advertised? A. Any Time. SLAAC provides the ability to address a host based on a network prefix that is advertised from a local network router. routing protocol D." . router advertisements C.actualtests. routing type Answer: B Explanation: QUESTION NO: 129 Refer to the exhibit. Which option prevents routing updates from being sent to the access layer switches? "Pass Any Exam.com 164 . routing table B.

while still allowing routing update messages to flow to the Internet router and the distribution switches? A." . ALS1(config-router)# passive-interface default ALS2(config-router)# passive-interface default C. Cisco 300-101 Exam A.www. DWS1(config-router)# passive-interface default DWS2(config-router)# passive-interface default B.actualtests. Which option prevents routing updates from being sent to the DHCP router. DWS1(config-router)# passive-interface gi1/1 DWS1(config-router)# passive-interface gi1/2 DWS2(config-router)# passive-interface gi1/1 DWS2(config-router)# passive-interface gi1/2 D. ALS1(config-router)# passive-interface gi0/1 ALS1(config-router)# passive-interface gi0/2 ALS2(config-router)# passive-interface gi0/1 ALS2(config-router)# passive-interface gi0/2 Answer: C Explanation: QUESTION NO: 130 Refer to the exhibit. Any Time. DHCP(config-router)# passive-interface default DHCP(config-router)# no passive-interface Gi1/0 Internet(config-router)# passive-interface Gi0/1 Internet (config-router)# passive-interface Gi0/2 "Pass Any Exam.com 165 .

Which consideration should be analyzed? A.actualtests. EIGRP uses a default variance of 2 for load balancing." . Internet(config-router)# passive-interface default Core(config-router)# passive-interface default DSW1(config-router)# passive-interface default DSW2(config-router)# passive-interface default Answer: C Explanation: QUESTION NO: 131 A network engineer is considering enabling load balancing with EIGRP. B. Any Time. EIGRP unequal path load balancing can result in routing loops. Core(config-router)# passive-interface default Core(config-router)# no passive-interface Gi0/0 Core(config-router)# no passive-interface Gi3/1 Core(config-router)# no passive-interface Gi3/2 D. EIGRP performs equal cost load balancing at least across four equal cost paths. 2. C. By default. Core(config-router)# passive-interface Gi0/0 Core(config-router)# passive-interface Gi3/1 Core(config-router)# passive-interface Gi3/2 DHCP(config-router)# no passive-interface Gi1/0 C. EIGRP allows a maximum of four paths across for load balancing traffic. and 7 only. 3. Which type of area is this router connected to? A. Answer: D Explanation: QUESTION NO: 132 The OSPF database of a router shows LSA types 1. By default. D.www. "Pass Any Exam. Cisco 300-101 Exam B.com 166 .

www. backbone area D. Which option also is required on the tunnel interface before it is operational? A.com 167 . The engineer has assigned an IPv4 address on the tunnel and sourced the tunnel from an Ethernet interface." . tunnel destination address B. Cisco 300-101 Exam stub area B.actualtests. "Pass Any Exam. tunnel protection Answer: A Explanation: QUESTION NO: 134 Which protocol is used in a DMVPN network to map physical IP addresses to logical IP addresses? A. IPv6 address D. not-so-stubby area Answer: D Explanation: QUESTION NO: 133 An engineer is configuring a GRE tunnel interface in the default mode. Any Time. keepalives C. totally stubby area C.

) A. Any Time. BGP D.com 168 . EIGRP E. EIGRP D." .www. RIPv2 B.D Explanation: QUESTION NO: 136 Which statement is true? A. "Pass Any Exam. IS-IS Answer: B. LLDP C.actualtests. NHRP Answer: D Explanation: QUESTION NO: 135 Which two routing protocols are supported by Easy Virtual Network? (Choose two. Cisco 300-101 Exam BGP B. OSPFv2 C.

www. Cisco 300-101 Exam RADIUS uses TCP. Answer: B. and TACACS+ uses UDP. Any Time. TACACS+ separates authentication and authorization." . Answer: D Explanation: QUESTION NO: 137 Which two statements about AAA implementation in a Cisco router are true? (Choose two. B.) A.D Explanation: QUESTION NO: 138 Which option is invalid when configuring Unicast Reverse Path Forwarding? A. RADIUS and TACACS+ are client/server AAA protocols. RADIUS and TACACS+ encrypt the entire body of the packet. Neither RADIUS nor TACACS+ allow for accounting of commands. "Pass Any Exam. TACACS+ encrypts only the password portion of a packet. D. RADIUS and TACACS+ allow accounting of commands.actualtests. E. D. B. C. C. RADIUS is more flexible than TACACS+ in router management.com 169 . RADIUS encrypts the entire body of the packet.

Cisco 300-101 Exam allow self ping to router B. (config)#ip cef (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via rx allow-default B. (config)#ip cef (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via rx C." . allow default route C.0.0/24 network to successfully enter router R.16. Any Time. source reachable via both Answer: D Explanation: QUESTION NO: 139 Refer to the exhibit.www.0.0/8 hosts that could enter router R? A. "Pass Any Exam. while also limiting spoofed 10.actualtests. Which option represents the minimal configuration that allows inbound traffic from the 172.1. allow based on ACL match D.com 170 .

permits all traffic except for http traffic sourced from the workstation with IP address 10.10.10.10.1 any eq 80 D. ip access-list extended NO_HTTP deny tcp host 10. (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via any Answer: A Explanation: QUESTION NO: 140 Which outbound access list. Cisco 300-101 Exam (config)#no ip cef (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via rx D.1 eq 80 any permit ip any any B. ip access-list extended 10 deny tcp host 10.10.10. Any Time.10.com 171 .1 any eq 80 permit ip any any C.actualtests.1 any eq 80 permit ip any any Answer: D "Pass Any Exam.1? A.10.10. applied to the WAN interface of a router.www. ip access-list extended 100 deny tcp host 10.10. ip access-list extended 200 deny tcp host 10.10." .

) A.com 172 ." . C. Cisco 300-101 Exam Explanation: QUESTION NO: 141 Which two statements indicate a valid association mode for NTP synchronization? (Choose two.www. "Pass Any Exam. The client polls NTP servers for time. The client broadcasts NTP requests. The client listens to NTP broadcasts. Answer: A. The client creates a VPN tunnel to an NTP server.actualtests. B. The client multicasts NTP requests. D.C Explanation: QUESTION NO: 142 Refer to the exhibit. Any Time. E.

225 10.0 overload C.1. ip nat inside source list 10 interface FastEthernet0/2 overload D.10.201. It allows external clients coming from public IP 209. ip nat inside source list 10 interface FastEthernet0/1 overload B.com 173 .165.1.50. B. It represents an incorrect NAT configuration because it uses standard TCP ports.actualtests.200. Answer: C Explanation: "Pass Any Exam." .168. It allows external clients to connect to a web server hosted on 192.1 to connect to a web server at 192.1. It allows host 192.1. D. C.50 to access external websites using TCP port 8080.168.www. ip nat outside source list 10 interface FastEthernet0/2 overload Answer: A Explanation: QUESTION NO: 143 Which statement describes what this command accomplishes when inside and outside interfaces are correctly identified for NAT? ip nat inside source static tcp 192. Any Time.201.165.10.165.168.1 8080 extendable A.50. ip nat outside source static 209.168.50 80 209. Cisco 300-101 Exam Which command allows hosts that are connected to FastEthernet0/2 to access the Internet? A.

HSRP B." . Cisco 300-101 Exam QUESTION NO: 144 Refer to the exhibit. Which technology can be employed to automatically detect a WAN primary link failure and failover to the secondary link? A. NetFlow C.com 174 .) A. built-in GUI D. IP SLA D. CLI B.actualtests.www. "Pass Any Exam. Any Time. multicast Answer: C Explanation: QUESTION NO: 145 In which two ways can NetFlow data be viewed? (Choose two. VRRP C.

actualtests. Cisco 300-101 Exam syslog server interface E. Any Time. Answer: "Pass Any Exam. web interface Answer: A.B Explanation: QUESTION NO: 146 DRAG DROP Drag and drop the Cisco Express Forwarding adjacency types from the left to the correct type of processing on the right.com 175 .www." .

Cisco 300-101 Exam Explanation: "Pass Any Exam.www.actualtests. Any Time." .com 176 .

Cisco 300-101 Exam QUESTION NO: 147 DRAG DROP Drag and drop the BGP states from the left to the matching definitions on the right.actualtests.www. "Pass Any Exam." . Any Time.com 177 .

" .actualtests. Cisco 300-101 Exam Answer: Explanation: "Pass Any Exam. Any Time.www.com 178 .

www. Cisco 300-101 Exam QUESTION NO: 148 DRAG DROP Drag and drop the IPv6 NAT characteristic from the left to the matching IPv6 NAT category on the right.com 179 ." . Any Time. Answer: "Pass Any Exam.actualtests.

25 source-interface FastEthernet 0/0 B.actualtests. "Pass Any Exam.25 every 3 seconds using an ICMP echo packet via an ICMP echo probe.com 180 .www.16. router(config-ip-sla-echo)#timeout 3 C. Any Time. router(config-ip-sla)#icmp-echo 172. Cisco 300-101 Exam Explanation: QUESTION NO: 149 An engineer is asked to monitor the availability of the next-hop IP address of 172.201.) A.201. Which two commands accomplish this task? (Choose two.16." .

25 source-port 23 F." . router(config-ip-sla)#udp-echo 172.D "Pass Any Exam.201.com 181 .25 interval 100 D. Any Time.actualtests.16. Cisco 300-101 Exam router(config-ip-sla)#icmp-jitter 172. router(config-ip-sla-echo)#frequency 3 E.201.www. router(config-ip-sla-echo)#threshold 3 Answer: A.16.