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Vendor: Cisco
Exam Code: 300-101
Exam Name: Implementing Cisco IP Routing (ROUTE)
Version: 16.031

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QUESTION 1
A network engineer has been asked to ensure that the PPPoE connection is established and
authenticated using an encrypted password.
Which technology, in combination with PPPoE, can be used for authentication in this manner?
A.
B.
C.
D.
E.

PAP
dot1x
IPsec
CHAP
ESP

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

QUESTION 2
A corporate policy requires PPPoE to be enabled and to maintain a connection with the ISP, even
if no interesting traffic exists.
Which feature can be used to accomplish this task?
A.
B.
C.
D.
E.

TCP Adjust
Dialer Persistent
PPPoE Groups
half-bridging
Peer Neighbor Route

Answer: B
Explanation:
A new interface configuration command, dialer persistent, allows a dial-on-demand routing (DDR)
dialer profile connection to be brought up without being triggered by interesting traffic. When
configured, the dialer persistent command starts a timer when the dialer interface starts up and
starts the connection when the timer expires. If interesting traffic arrives before the timer expires,
the connection is still brought up and set as persistent. The command provides a default timer
interval, or you can set a custom timer interval.

QUESTION 3
Which encapsulation supports an interface that is configured for an EVN trunk?

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A.
B.
C.
D.
E.
F.

802.1Q
ISL
PPP
Frame Relay
MPLS
HDLC

Answer: A
Explanation:
Restrictions for EVN
An EVN trunk is allowed on any interface that supports 802.1q encapsulation, such as Fast
Ethernet, Gigabit Ethernet, and port channels.
A single IP infrastructure can be virtualized to provide up to 32 virtual networks end-to-end.
If an EVN trunk is configured on an interface, you cannot configure VRF-Lite on the same
interface.
OSPFv3 is not supported; OSPFv2 is supported.
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/evn/configuration/xe-3s/evn-xe-3s-book/evnoverview.pdf

QUESTION 4
Which three characteristics are shared by subinterfaces and associated EVNs? (Choose three.)
A.
B.
C.
D.
E.

IP address
routing table
forwarding table
access control lists
NetFlow configuration

Answer: ABC
Explanation:
runk interface can carry traffic for multiple EVNs. To simplify the configuration process, all the
subinterfaces and associated EVNs have the same IP address assigned. In other words, the
trunk interface is identified by the same IP address in different EVN contexts.
This is accomplished as a result of each EVN having a unique routing and forwarding table,
thereby enabling support for overlapping IP addresses across multiple EVNs.
http://www.cisco.com/en/US/docs/ios-xml/ios/evn/configuration/xe-3sg/evn-overview.pdf

QUESTION 5
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
A.
B.
C.
D.

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

Answer: C

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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 6
For troubleshooting purposes, which method can you use in combination with the debug ip packet
command to limit the amount of output data?
A.
B.
C.
D.
E.

You can disable the IP route cache globally.
You can use the KRON scheduler.
You can use an extended access list.
You can use an IOS parser.
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
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.
http://www.cisco.com/c/en/us/support/docs/security/dynamic-multipoint-vpn-dmvpn/111976dmvpn-troubleshoot-00.html

QUESTION 7
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.
B.
C.
D.

A packet that matches access-list with the "log" keyword is Cisco Express Forwarding switched.
A packet that matches access-list with the "log" keyword is fast switched.
A packet that matches access-list with the "log" keyword is process switched.
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.
http://www.cisco.com/web/about/security/intelligence/acl-logging.html#4

QUESTION 8
Which address is used by the Unicast Reverse Path Forwarding protocol to validate a packet
against the routing table?
A. source address
B. destination address

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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. strict mode. Although asymmetric traffic flows may be of concern when deploying this feature. Administrators can change this behavior using the allow-default option. Unicast RPF deflects such attacks by forwarding only packets that have source addresses that are valid and consistent with the IP routing table. When administrators use Unicast RPF in strict mode. For example. http://www. An access list may also be specified that permits or denies certain source addresses in Unicast RPF loose mode. loose mode. 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. the source address must appear in the routing table. 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. loose mode. C. Note that not all network devices support all three modes of operation. 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.cisco. loose mode. D.html QUESTION 9 What are the three modes of Unicast Reverse Path Forwarding? A.cisco. its customer. and the rest of the Internet. Unicast RPF works in one of three different modes: strict mode.com 5 . which allows the use of the default route in the source verification process.C. a number of common types of denial-of-service (DoS) attacks. Dropping this legitimate traffic could occur when asymmetric routing paths are present in the network. Unicast RPF loose mode is a scalable option for networks that contain asymmetric routing paths. broadcast mode. http://www. can take advantage of forged or rapidly changing source IP addresses to allow attackers to thwart efforts to locate or filter the attacks. This capability can limit the appearance of spoofed addresses on a network. This security feature works by enabling a router to verify the reachability of the source address in packets being forwarded. and VRF mode strict mode. which is applied on the external interface FastEthernet 1/0 of the perimeter router. This action protects the network of the ISP. the packet is discarded. router interface D. accomplish? Get Latest & Actual 300-101 Exam's Question and Answers from exam.html QUESTION 10 What does the following access list. including Smurf and Tribal Flood Network (TFN). and VRF mode broadcast mode. B. the packet must be received on the interface that the router would use to forward the return packet. a packet that contains a source address for which the return route points to the Null 0 interface will be dropped. http://www. Additionally. When administrators use Unicast RPF in loose mode.com/en/US/docs/ios/12_2/security/configuration/guide/scfrpf. Unicast RPF in VRF mode will not be covered in this document. If the source IP address is not valid. or VRF mode. loose mode.exam.com/web/about/security/intelligence/unicast-rpf. For Internet service providers (ISPs) that provide public access. and broadcast mode strict mode.

0.31.0 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 any log router (config)#access-list 101 deny ip 192.0.0.255 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. The router will never accept any HTTP and HTTPS traffic.255. 192.0. It filters incoming traffic from private addresses in order to prevent spoofing and logs any intrusion attempts.0.0 0.0-192.0 -.0 0.com 6 .168.10.255. This ACL is used to prevent all packets with a spoofed reserved private source IP address to enter the network. Answer: C Explanation: The private IP address ranges defined in RFC 1918 are as follows: 10. use the no form of this command.exam.15. http://www. C.255.255 192. D.0. 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. The router will listen to HTTP and HTTP traffic on port 4433.168.0.0.0.255.168.router(config)#access-list 101 deny ip 10.16. It prevents incoming traffic from IP address ranges 10. http://www.192. It prevents the internal network from being used in spoofed denial of service attacks and logs any exit to the Internet.0. D.255 and logs any intrusion attempts.0. 172.16.31. Answer: A Explanation: To set the secure HTTP (HTTPS) server port number for listening. use the ip http secure-port command in global configuration mode.0172. C.255.255. The log keyword also enables logging of this intrusion attempt.255.0.0.168.16.0 -. It prevents private internal addresses to be accessed directly from outside.255.0.255.0 -.255 any log router (config)#access-list 101 deny ip 172. To return the HTTPS server port number to the default.com/en/US/docs/ios-xml/ios/https/command/nm-https-cr-clsh.168. but the port number must be higher than 1024 unless the default is used.255.0.255 172. QUESTION 11 Refer to the following command: router(config)# ip http secure-port 4433 Which statement is true? A. The router will listen on port 4433 for HTTPS traffic. B.255.html#wp3612805529 Get Latest & Actual 300-101 Exam's Question and Answers from exam. The default is 443. The router will listen on port 4433 for HTTP traffic.172.0-10.255.cisco. B.

username serves as a replacement for community string).16. no encryption) to authenticate polling and trap delivery. http://www.28 traps version 2c CISCORO router(config)#snmp-server host 172.ccnpguide.28 informs version 2c CISCORO router(config)#snmp-server host 172. Like IPv4 to Ipv6.16. "AuthPriv" (messages are authenticated and encrypted ?priv keyword in CLI).com 7 . However. SNMP version 3 moves away from the community string approach in favor of userbased authentication and view-based access control.) Get Latest & Actual 300-101 Exam's Question and Answers from exam. The problem of course is that the SNMP statistical payload is not encrypted and authentication is passed in cleartext. B. Which two actions can you take to provide enhanced logging results? (Choose two.ine. http://www.QUESTION 12 A network engineer is configuring SNMP on network devices to utilize one-way SNMP notifications. which string is matched for authentication? A. C. Which command satisfies the requirements of this scenario? A. D. there are some major changes under the hood. SNMPv3. Finally. senior management asks you to implement better logging functionality on all IOS-based devices. SNMPv1 and SNMPv2 models only support the "noAuthNoPriv" model since they use plain community string to match the incoming packets.201.201.16. http://blog. The view is used to define what the user account may access on the IOS device. "AuthNoPriv109thernet109ationre authenticated but not encrypted ?auth keyword in CLI). Users. username password community-string encryption-key Answer: A Explanation: The following security models exist: SNMPv1. groups. The users are not actual local user accounts.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. The following security levels exits: "noAuthNoPriv" (no authentiation and no encryption ?noauth keyword in CLI). D. It's simple to configure on both the router/switch-side and just as easy on the network monitoring server. C. SNMPv2. but I would suggest otherwise.201.201.com/snmp-version-3/ QUESTION 13 When using SNMPv3 with NoAuthNoPriv. SNMP version 2 uses community strings (think cleartext passwords. which determines the access policy for its users. rather they are simply a means to determine who can authenticate to the device. the engineer is not concerned with authentication or encryption.28 traps version 3 auth CISCORO router(config)#snmp-server host 172. views. B.exam. Most companies have decided that the information being transmitted isn't valuable enough to be worth the extra effort in upgrading to SNMPv3. router(config)#snmp-server host 172. The SNMPv3 implementations could be configured to use either of the models on per-group basis (in case if "noAuthNoPriv" is configured. each user is added to a group.com/2008/07/19/snmpv3-tutorial/ QUESTION 14 After a recent DoS attack on a network.16.

Use the msec option to enable service time stamps. in other words. It enables receiving NTP broadcasts on the interface where the command was executed. Answer: AB Explanation: The optional msec keyword specifies the date/time format should include milliseconds. E. D.A. Increase the logging history. It enables a device to be an NTP peer to another device. B. and SNMP messages will be sent by the less sever (5-7) messages. use the logging history command in global configuration mode. http://www. C. D.com/en/US/docs/internetworking/troubleshooting/guide/tr19aa. or to correlate the order that the events happened. Assuming that an NTP server is already set up. Core dumps are generally very useful to your technical support representative. Four basic ways exist for setting up the router to generate a core dump: Using Trivial File Transfer Protocol (TFTP) Using File Transfer Protocol (FTP) Using remote copy protocol (rcp) Using a Flash disk http://www. It enables receiving NTP broadcasts on all interfaces globally. By default. Cisco devices Log error messages of severity levels 0 through 4 (emergency. C. Answer: A Explanation: The NTP service can be activated by entering any ntp command.cisco. C. and warning levels).exam. When you use the ntp Get Latest & Actual 300-101 Exam's Question and Answers from exam. QUESTION 15 A network engineer finds that a core router has crashed without warning.com 8 . B. Specify a logging rate limit. more granular monitoring can occur. B. which feature can the engineer use to create a crash collection? A. error. secure copy protocol core dumps warm reloads SNMP NetFlow Answer: B Explanation: When a router crashes. alert. "saving level warnings or higher.html QUESTION 16 A network engineer is trying to implement broadcast-based NTP in a network and executes the ntp broadcast client command. Disable event logging on all noncritical items. what is the result of the command? A. This can aid in pinpointing the exact time of events. it is sometimes useful to obtain a full copy of the memory image (called a core dump) to identify the cause of the crash. critical. E. D." By increasing the severity level. Set the logging severity level to 1. It enables a device to receive NTP broadcast and unicast packets. In this situation. To limit syslog messages sent to the router's history table and to an SNMP network management station based on severity.

if TCP lost packets 4 and 7 out of an 8-packet window. Prior to this feature. but such re-sent segments might have already been successfully received. D. TCP receives acknowledgment of packets 1. TCP header compression will not compress the outgoing packet. and 3. Command Description ntp broadcast client Allows the system to receive NTP broadcast packets on an interface. 5. 6. An aggressive sender could choose to resend packets early. the TCP time-stamp option is disabled.cisco. 2. because of limited information available from cumulative acknowledgments.html QUESTION 17 Which three TCP enhancements can be used with TCP selective acknowledgments? (Choose three.broadcast client command. http://www. a TCP sender could learn about only one lost packet per-round-trip time. TCP would receive acknowledgment of only packets 1. Use the ip tcp timestamp command to enable the TCP time-stamp option.com 9 . The TCP selective acknowledgment mechanism helps improve performance.com/c/en/us/td/docs/ios-xml/ios/bsm/command/bsm-xe-3se-3850-cr-book/bsmxe-3se-3850-cr-book_chapter_00. Refer to RFC 2018 for more details about TCP 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. It also provides enhanced support for TCP sessions Get Latest & Actual 300-101 Exam's Question and Answers from exam. and 8. E. informing the sender of data that has been received. Packets 4 through 8 would need to be re-sent. Because the time stamps are always sent and echoed in both directions and the time-stamp value in the header is always changing. The receiving TCP host returns selective acknowledgment packets to the sender. TCP selective acknowledgment is used only when multiple packets are dropped within one TCP window. http://www. In other words. With selective acknowledgment. B. To allow TCP header compression over a serial link. Only packets 4 and 7 must be re-sent. header compression explicit congestion notification keepalive time stamps TCP path discovery MTU window Answer: BCD Explanation: TCP Selective Acknowledgment The TCP Selective Acknowledgment feature improves performance if multiple packets are lost from one TCP window of data.exam. 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.) A. Prior to selective acknowledgment. 3. TCP Time Stamp The TCP time-stamp option provides improved TCP round-trip time measurements. 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. F. There is no performance impact when the feature is enabled but not used. 2. C. Use the ip tcp selective-ack command in global configuration mode to enable TCP selective acknowledgment.

QUESTION 18 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. The benefit of this feature is the reduction of delay and packet loss in data transmissions. one-way latency.associated with applications. Each measurement operation can monitor against a pre-set performance threshold.html QUESTION 19 Under which condition does UDP dominance occur? A. B. Use the ip tcp ecn command in global configuration mode to enable TCP ECN.cisco.exam. web browsing. Which UDP characteristic does this scenario describe? A.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 http://www.com 10 . and transfer of audio and video data that are sensitive to delay or packet loss. D. and connectivity tests. MOS. the connection is considered dead and the device initiating the probes frees resources used by the TCP connection. the device sends a TCP keepalive packet to the peer with only the Acknowledgment (ACK) flag turned on. Several SNMP traps are available: round trip time. C. TCP Keepalive Timer The TCP Keepalive Timer feature provides a mechanism to identify dead connections. B. Cisco IOS IP SLAs generates an SNMP trap to alert management applications if this threshold is crossed. packet loss. when TCP traffic is in the same class as UDP when UDP flows are assigned a lower priority queue when WRED is enabled when ACLs are in place to block TCP traffic Answer: A Get Latest & Actual 300-101 Exam's Question and Answers from exam. If a response packet (a TCP ACK packet) is not received after the device sends a specific number of probes. D. jitter. C. latency starvation connectionless communication nonsequencing unordered packets jitter Answer: A Explanation: Cisco IOS IP SLAs provides a proactive notification feature with an SNMP trap.com/en/US/technologies/tk648/tk362/tk920/technologies_white_paper09186a00 802d5efe. Here is a partial sample output from the IP SLA statistics that can be seen: router#show ip sla statistics 1 Round Trip Time (RTT) for Index 55 Latest RTT: 1 ms Latest operation start time: *23:43:31. such as Telnet. When a TCP connection on a routing device is idle for too long. average jitter. http://www. E.

PPPoE functions as a Layer 2 encapsulation method that allows data to be encrypted over the PPP link within PPPoE headers. PPP options are not negotiated and authentication is performed. D. PPP options are negotiated and authentication is not performed. the same behavior would be observed because WRED (for the most part) manages congestion only on TCP-based flows.com/c/en/us/td/docs/security/asa/asa92/configuration/vpn/asa-vpn-cli/vpnpppoe. Specifically. thus. Although some UDP applications have application-level windowing. C. PPP options are automatically enabled and authorization is performed.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoSSRND-Book/VPNQoS.com 11 . Once the link setup is completed.cisco. This effect is called TCP starvation/UDP dominance. potentially giving up their bandwidth to UDP flows that are oblivious to drops. Active Authentication Phase and PPP Session Phase Passive Discovery Phase and PPP Session Phase Active Authorization Phase and PPP Session Phase Active Discovery Phase and PPP Session Phase Answer: D QUESTION 21 Which statement is true about the PPP Session Phase of PPPoE? A. most UDP transmitters are completely oblivious to drops and. http://www. never lower transmission rates because of dropping. PPPoE functions as a Layer 3 encapsulation method that allows data to be transferred over the PPP link within PPPoE headers. D.exam.Explanation: Mixing TCP with UDP 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. PPPoE functions as a Layer 4 encapsulation method that allows data to be transferred over the PPP link within PPPoE headers. TCP flows continually lower their transmission rates. PPP options are negotiated and authentication is performed. Answer: D Explanation: http://www. http://www. B. Once the link setup is completed. Once the link setup is completed. C. and retransmission capabilities. TCP transmitters throttle back flows when drops are detected.html QUESTION 22 Which type of traffic does DHCP snooping drop? Get Latest & Actual 300-101 Exam's Question and Answers from exam. When TCP flows are combined with UDP flows within a single service-provider class and the class experiences congestion.cisco. Once the link setup is completed.html QUESTION 20 PPPoE is composed of which two phases? A. 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. B. flow control. Even if WRED is enabled on the service-provider class. PPPoE functions as a Layer 2 encapsulation method that allows data to be transferred over the PPP link within PPPoE headers.

0. discover messages DHCP messages where the source MAC and client MAC do not match traffic from a trusted DHCP server to client DHCP messages where the destination MAC and client MAC do not match Answer: B Explanation: http://www.3. C. Which command only announces the 1.html QUESTION 23 Refer to the exhibit.x. B.8.A. B.0/24 10. Get Latest & Actual 300-101 Exam's Question and Answers from exam. This question also asks us to apply this distribute list only to the outbound direction of the fast Ethernet 0/0 interface.8. D. B. where X is any value in the 0-255 range.0/24.0/24 10. allowing only 1.8.0/23 Answer: B Explanation: With prefix lists.0/16 10.0/24 network." QUESTION 24 Which prefix is matched by the command ip prefix-list name permit 10.0. This translates to any prefix in the 10.3.cisco. 10.0/8 networks.8. whereas access list 1 permits all 1.0.exam.0.0.1.com 12 .0/24 network out of FastEthernet 0/0? A. so only a /24 is both greater than or equal to 24 and less than or equal to 24.8. D.2.0/16 ge 24 le 24? A.0.2.24 matches this. distribute list 1 out distribute list 1 out FastEthernet0/0 distribute list 2 out distribute list 2 out FastEthernet0/0 Answer: D Explanation: Access list 2 is more specific. http://www. C.9.0.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/122SX/configuration/guide/book/snoodhcp.0. C. Only the choice of 10. D. so the correct command is "distribute list 2 out FastEthernet0/0.8. the ge 24 term means greater than or equal to a /24 and the le 24 means less than or equal to /24.

B. B. but IPv6 Cisco Express Forwarding was disabled. The 16-bit 0xFFFE is then inserted between these two 24-bits to for the 64-bit EUI address. The networks that are advertised from Router A do not show up in Router B's routing table. IPv6 unicast routing is not enabled on Router A or Router B. Router acknowledgment messages will be forwarded upstream. The Mac address is first separated into two 24-bits. This feature is a key benefit over IPv4 as it eliminates the need of manual configuration or DHCP as in the world of IPv4.com/document/100566/understanding-ipv6-eui-64-bit-address QUESTION 27 A packet capture log indicates that several router solicitation messages were sent from a local host on the IPv6 segment. IEEE has chosen FFFE as a reserved value which can only appear in EUI-64 generated from the EUI-48 MAC address.html QUESTION 26 After you review the output of the command show ipv6 interface brief. allows a host to assign iteslf a unique 64-Bit IP Version 6 interface identify them EUI-64). https://supportforums. All local host traffic will be redirected to the router with the lowest ICMPv6 signature. What is the expected acknowledgment and its usage? A. IPv6 unicast forwarding was enabled. as per RFC2373. 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. D. The IPv6 EUI-64 format address is obtained through the 48-bit MAC address. http://www. Answer: D Explanation: http://www. The networks were not advertised properly under the OSPFv3 process. IPv6 addresses containing "FFFE" indicate that the address is reserved for multicast. such as prefix discovery. The IPv6 universal/local flag (bit 7) was flipped. The addresses were misconfigured and will not function as intended. where the DHCP server will allocate addresses to the local host. B. which is statically defined by the network administrator. Answer: A Explanation: Extended Unique Identifier (EUI). Routers on the IPv6 segment will respond with an advertisement that provides an external path from the local subnet. D.QUESTION 25 Router A and Router B are configured with IPv6 addressing and basic routing capabilities using OSPFv3.cisco. E. An IPv6 traffic filter is blocking the networks from being learned via the Router B interface that is connected to Router A. the message "not a router" is found in the output. Get Latest & Actual 300-101 Exam's Question and Answers from exam. C. After debugging IPv6 packets. Why is the routing information not being learned by Router B? A.cisco.com/c/en/us/td/docs/ios/ipv6/command/reference/ipv6_book/ipv6_16. you see that several IPv6 addresses have the 16-bit hexadecimal value of "FFFE" inserted into the address. what do you conclude about these IPv6 addresses? A. D. Based on this information. OSPFv3 timers were adjusted for fast convergence.com 13 . with one being OUI (Organizationally Unique Identifier) and the other being NIC specific. C. IEEE EUI-64 was implemented when assigning IPv6 addresses on the device. C. as well as certain data.exam.

input a prescribed IP address. are sent by hosts at system startup so that the host can immediately autoconfigure without needing to wait for the next scheduled RA message.html QUESTION 28 A user is having issues accessing file shares on a network. which have a value of 133 in the Type field of the ICMP packet header. such as the hop limit and MTU a host should use in packets that it originates http://www. D. Router solicitation messages. If the host has a configured unicast address.cisco. the client installs and configures itself. the source address in router solicitation messages is usually the unspecified Ipv6 address (0:0:0:0:0:0:0:0).com 14 . the browser connects to that interface and displays the login screen. http://www.html Get Latest & Actual 300-101 Exam's Question and Answers from exam. it downloads the client that matches the operating system of the remote computer.com/c/en/us/support/docs/security/asa-5500-x-series-next-generationfirewalls/100936-asa8x-split-tunnel-anyconnect-config. users must enter the URL in the form https://<address>.Answer: B Explanation: Router Advertisements (RA) are sent in response to router solicitation messages. If the user satisfies the login and authentication. the unicast address of the interface sending the router solicitation message is used as the source address in the message. the destination address in the RA message is the unicast address of the source of the router solicitation message. establishes a secure SSL connection and either remains or uninstalls itself (depending on the security appliance configuration) when the connection terminates. The network engineer advises the user to open a web browser. Given that router solicitation messages are usually sent by hosts at system startup (the host does not have a configured unicast address).com/c/en/us/td/docs/ios/ipv6/configuration/guide/12_4t/ipv6_12_4t_book/ip6addrg_bsc_con. Which type of remote access did the engineer enable? A.cisco.exam. B. and follow the instructions. if so. EZVPN IPsec VPN client access VPDN client access SSL VPN client access Answer: D Explanation: The Cisco AnyConnect VPN Client provides secure SSL connections to the security appliance for remote users. After entering the URL. Without a previously installed client. 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. After doing this. The destination address in router solicitation messages is the all-routers multicast address with a scope of the link. Unless the security appliance is configured to redirect http:// requests to https://. When an RA is sent in response to a router solicitation. C. After downloading. and the security appliance identifies the user as requiring the client. remote users enter the IP address in their browser of an interface configured to accept SSL VPN connections. http://www. the user is able to access company shares.

This dynamic-mesh capability alleviates the need for any load on the hub to route data between the spoke networks. tunnels between spokes can be dynamically built on demand (dynamicmesh) without additional configuration on the hubs or spokes. Enable HSRPv2 under global configuration. Adjust the HSRP priority without the use of preemption.com/c/en/us/support/docs/ip/hot-standby-router-protocol-hsrp/13780-6. C. and bandwidth-intensive applications are identified as the root cause.exam. Using this initial huband-spoke network. dynamic routing protocol. the HSRP priority is reduced.cisco. including Ipsec (Internet Protocol Security) and ISAKMP (Internet Security Association and Key Management Protocol) peers. FlexVPN DMVPN GETVPN 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. http://www. B. C. This DMVPN provides the capability for creating a dynamic-mesh VPN network without having to pre-configure (static) all possible tunnel end-point peers. which allows for maintenance mode. 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.com 15 . GRE. This means that another HSRP router with higher priority can become the active router if that router has standby preempt enabled. as an alternative to powering down the active router and letting the network respond accordingly. In order to identify which specific type of traffic is causing this slowness. Which action will allow for manual switching of HSRP nodes? A. Disable and enable all active interfaces on the active HSRP node. NHRP and Ipsec. Loopback interfaces can be tracked. http://www.wikipedia. DMVPN is initially configured to build out a hub-and-spoke network by statically configuring the hubs (VPN headends) on the spokes. Track the up/down state of a loopback interface and shut down this interface during maintenance. no change in the configuration on the hub is required to accept new spokes. mGRE. 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.html QUESTION 31 A network engineer is notified that several employees are experiencing network performance related issues. and Cisco Express Forwarding? A.org/wiki/Dynamic_Multipoint_Virtual_Private_Network QUESTION 30 A network engineer is configuring a solution to allow failover of HSRP nodes during maintenance windows. DMVPN is combination of the following technologies: http://en. information such as the source/destination IP and Layer 4 port numbers is required. If the line protocol of the specified interface goes down.QUESTION 29 Which Cisco IOS VPN technology leverages IPsec. B. D. D. Which feature should the engineer use to gather the required information? Get Latest & Actual 300-101 Exam's Question and Answers from exam. NHRP.

http://www. Answer: A Explanation: https://blogs. Cisco Express Forwarding has not been configured globally. a flow is identified as the combination of the following key fields: http://www. B. configuration of the specified flow exporter current status of the specified flow exporter status and statistics of the specified flow monitor configuration of the specified flow monitor Answer: B Explanation: show flow exporter exporter-name Example: Device# show flow exporter FLOW_EXPORTER-1 (Optional) Displays the current status of the specified flow exporter Get Latest & Actual 300-101 Exam's Question and Answers from exam. The following command is entered: switch#show flow exporter Flow_Exporter-1 What is the expected output? A. C. NetFlow output has been filtered by default.manageengine. SNMP Cisco IOS EEM NetFlow Syslog 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. Specifically. B. E.html QUESTION 33 A network engineer has left a NetFlow capture enabled over the weekend to gather information regarding excessive bandwidth utilization.cisco. The command ip flow-capture fragment-offset has been enabled.exam. D. B. D.html QUESTION 32 An organization decides to implement NetFlow on its network to monitor the fluctuation of traffic that is disrupting core services.A.com 16 . What can you determine based on this information? A. C. After reviewing the output of NetFlow. Flow Export version 9 is in use. the network engineer is unable to see OUT traffic on the interfaces. D.com/en/US/docs/ios-xml/ios/netflow/configuration/12-4t/cfg-nflow-data-expt.com/network-2/netflowanalyzer/2010/05/19/need-for-cef-in-netflowdata-export.

B. C. http://www.html QUESTION 36 Which two methods of deployment can you use when implementing NAT64? (Choose two. D.pdf QUESTION 35 Which two functions are completely independent when implementing NAT64 over NAT-PT? (Choose two.com/en/US/docs/ios-xml/ios/fnetflow/configuration/15-mt/cfg-de-fnflowexprts. The DnS64 and NAT64 functions are completely separated. or an edge network). This solution allows both enterprises and ISPs to accelerate IPv6 adoption while simultaneously handling IPv4 address depletion.http://www. D.) A. DNS NAT port redirection stateless translation session handling Answer: AB Explanation: Work Address Translation IPv6 to IPv4. 1-to-1.cisco. E. NAT64 NAT44 NATv6 NPTv4 NPTv6 Answer: E Explanation: NPTv6 provides a mechanism to translate the private internal organization prefixes to public globally reachable addresses. multi homing. C. or NAT64. C.exam.cisco. The use cases for NPTv6 outlined in the RFC include peering with partner networks. which is essential to the superiority of NAT64 over NAT-PT. http://www.cisco.com 17 . What is the best solution to ensure compliance with this new policy? A. http://www. and redundancy and load sharing.html QUESTION 34 A company's corporate policy has been updated to require that stateless. stateless stateful manual automatic Get Latest & Actual 300-101 Exam's Question and Answers from exam. B. B.com/c/dam/en/us/td/docs/solutions/SBA/August2012/Cisco_SBA_BN_IPv6Addr essingGuide-Aug2012. and IPv6 to IPv6 translations at the Internet edge are performed.) A. E. D. an access. The translation mechanism is stateless and provides a 1:1 relationship between the internal addresses and external addresses.com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6solution/white_paper_c11-676278. technology facilitates communication between IPv6-only and IPv4-only hosts and networks (whether in a transit.

In the random sampling mode that Random Sampled NetFlow uses.exam.com/c/en/us/td/docs/ios/fnetflow/command/reference/fnf_book/fnf_01. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface. B. there are important differences. one packet every 100 seconds. The sampler matched 10 packets. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record.cisco. flow monitor flow exporter flow sampler flow collector Answer: A Explanation: Flow monitors are the NetFlow component that is applied to interfaces to perform network traffic monitoring. static F. C.com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6solution/white_paper_c11-676277. The sampler matched 10 packets. D. Which statement about the output of the show flow-sampler command is true? A. You add the record to the flow monitor after you create the flow monitor.cisco. http://www. Flow monitors consist of a record and a cache.html#wp13 14030 QUESTION 38 Refer to the exhibit. C. The following table provides a high-level overview of the most relevant differences. each packet randomly chosen from every group of 100 packets. Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 18 . http://www. incoming packets are randomly selected so that one out of each n sequential packets is selected on average for NetFlow processing.html QUESTION 37 Which NetFlow component is applied to an interface and collects information about flows? A. D. http://www. dynamic Answer: AB Explanation: While stateful and stateless NAT64 perform the task of translating IPv4 packets into IPv6 packets and vice versa. one packet every 100 packets.E. B. The sampler matched 10 packets. functional G. 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. The sampler matched 10 packets. which is configured for the flow monitor and stored in the flow monitor cache.

1 and port UDP/5858. .cisco.Link between Seattle and Chicago Secre Password: cisco NewYork S0/1 192.1 and port UDP/5858.http://www.The routing protocol must be enabled for each interface using the most specific wildcard mask possible.Link between Seattle and Chicago Secret Password: cisco Chicago S0/0 192. http://www.6/30 . The S0/0 interface on Chicago and the S0/1 interface on NewYork are in Area 0. Network Information Seattle S0/0 192.16.The serial link between Seattle and Chicago must be in OSPF area 21. The loopback0 interface on NewYork is in Area 1.9/30 .10.10.10. Answer: A Explanation: http://www.54.com's corporate implementation guidelines require: .1 5858? A.The OSPF process ID for all routers must be 10.com 19 . It configures the router to export cache flow information to IP 10.html#wp1084291 QUESTION 39 What is the result of the command ip flow-export destination 10.html#wp1023091 QUESTION 40 Lab Simulation 1 . It configures the router to receive cache flow information about flows with destination IP 10. It configures the router to receive cache flow information from IP 10. C.16.com/c/en/us/td/docs/ios/12_0s/feature/guide/12s_mdnf. B. ROUTE.189 Secret Password: cisco Get Latest & Actual 300-101 Exam's Question and Answers from exam.5/30 .10.OSPF Route.com is a small IT corporation that is attempting to implement the network shown in the exhibit. they cannot ping from the serial interface of the Seattle router to the loopback interface of the NewYork router.16.54.189. .com/c/en/us/td/docs/ios/12_0s/feature/guide/nfstatsa.168.168. Currently the implementation is partially completed.10.The routing protocol for each interface must be enabled under the routing process.10. OSPF has been configured on routers Chicago and NewYork.exam.Link between Chicago and NewYork S0/1 192.Link between Chicago and NewYork Loopback0 172. You have been asked to complete the implementation to allow this ping.1 on port UDP/5858.OSPF area 21 must not receive any inter-area or external routes. It configures the router to export cache flow information about flows with destination IP 10.168.168.10.1 on port UDP/5858.cisco. .10. .10. D.10/30 .10. However.

hence the subnets will increment by 4. So.7 Lets find the wildcard mask of /30.5 /30 Subnet Mask: 255. we need to find the network address and wildcard mask of 192.5/30. First.16.168.16. OSPF areas and process ID.168.exam.252 Here subtract 252 from 2565.168. Host Bits Lets find the wildcard mask of /30.4 Broadcast Address: 192.5) belongs to subnet 1 (4 to 7).com 20 .5/30 in order to configure the OSPF.16. find the 4th octet of the Network Address: The 4th octet of IP address (192. Subnet Mask: (Network Bits 1's.255.16. http://www.168. IP Address: 192. the IP addressing. Network Address: 192.168.168. 0's) Get Latest & Actual 300-101 Exam's Question and Answers from exam.Answer: Note: In actual exam. 256-252 = 4.255. and router hostnames may change.16.16. but the overall solution is the same. Seattle's S0/0 IP Address is 192.

com 21 . Chicago(config-router)# area 21 stub no-summary Chicago(config-router)# end Chicago# copy run start Get Latest & Actual 300-101 Exam's Question and Answers from exam. Therefore we want to configure area 21 as a totally stubby area. http://www. we must stop LSA Type 5 if we don't want to send external routes.0.3 area 21 Again.168. And if we don't want to send inter-area routes.3 area 21 One of the tasks states that area 21 should not receive any external or inter-area routes (except the default route). Seattle(config-router)# area 21 stub Seattle(config-router)# end Seattle# copy run start Chicago Configuration: 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 192.4 0.0. Seattle> enable Password: Seattle# conf t Seattle(config)# router ospf 10 Seattle(config-router)# network 192. In order to accomplish this. we have to stop LSA Type 3 and Type 4.0.0.16.exam.16.168.Now we configure OSPF using process ID 10 (note the process ID may change to something else in real exam).4 0. area 21 should not receive any external or inter-area routes (except the default route).

http://www.The other interface on the Chicago router is already configured correctly in this scenario. as well as the New York router so there is nothing that needs to be done on that router. Use the “show running-config” command on router R3 Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 22 .EIGRP Stub Answer: First we have to figure out why R3 and R4 can not communicate with each other.exam. QUESTION 41 Lab Simulation 2 .

Next we will configure router R3 so that it has only 2 subnets of 10. This keyword will also prevent any type of route from being sent. 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.0 network. Use the show ip route command on R3 to view its routing table R3# show ip route Get Latest & Actual 300-101 Exam's Question and Answers from exam. The receive-only keyword will restrict the router from sharing any of its routes with any other router in that EIGRP autonomous system.0.exam. http://www.com 23 .Notice that R3 is configured as a stub receive-only router.0. Notice that the eigrp stub command equals to the eigrp stub connected summary because the connected and summary options are enabled by default.

0.0.0 255. Therefore. which is a directly connected network of R3.exam.0 255.3.0/24.0 at the interface s0/0 of R4 to summary. http://www.0 you will leave a /16 network in the output of the show ip route command. if you use the command ip summary-address eigrp 123 10. There is one interesting thing about the output of the show ip route shown above: the 10. In the output if we don’t see the summary line (like 10.0.0. In conclusion.2.0.0.2.0. to make the routing table of R3 has only 2 subnets we have to summary other subnets into one subnet.255.0.0/8 is a summary…) then we should use the command ip summary-address eigrp 123 10.0.0.2. We can‘t get rid of it in the routing table no matter what technique we use to summary the networks.0 so that all the ping can work well.0. the s0/0 interface of R4.0 255. we will use the ip summary-address eigrp 123 10.0 255.255. for example.255.com 24 .2.2.0 Now we jump back to R3 and use the show ip route command to verify the effect.Because we want the routing table of R3 only have 2 subnets so we have to summary subnetworks at the interface which is connected with R3.0/8 to summary. Get Latest & Actual 300-101 Exam's Question and Answers from exam. notice that if you use another network than 10.0. R4> enable R4# configure terminal R4(config)# interface s0/0 R4(config-if)# ip summary-address eigrp 123 10.255. the output is shown below: (But 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) Just for your information.

.exam.But in your real exam. This summarization is better because all the pings can work well.2. R3(config-if)# end R3# copy run start R4(config-if)# end R4# copy run start QUESTION 42 Lab Simulation 3 .Null0" then you can summary using the network 10. if you don't see the line "10.IPv6 OSPF Virtual Link Get Latest & Actual 300-101 Exam's Question and Answers from exam. http://www.0...0/16.com 25 . Finally don't forget to use the copy running-config startup-config command on routers R3 and R4 to save the configurations.0.0.0/8 is a summary..

http://www.exam. Pay more attention to the outputs of routers R2 and R3.com 26 . The output of the "show running-config" command of R2: And The output of the "show running-config" command of R3: Get Latest & Actual 300-101 Exam's Question and Answers from exam.Answer: To troubleshoot the problem. first issue the show running-config on all of 4 routers.

Get Latest & Actual 300-101 Exam's Question and Answers from exam.exam. http://www.com 27 .

com 28 . http://www.exam.Get Latest & Actual 300-101 Exam's Question and Answers from exam.

4. 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. a small IT company.not "show ip route". No static or default routing is allowed. In this case.3.exam. http://www. IT policy requires that all outbound HTTP traffic use the frame relay link when it is available.4.2) + Configure virtual link on R3 (from the second output above.4.3.2. Choose and configure the appropriate path selection feature to accomplish this task. we can use a virtual link to connect to the backbone through a non-backbone area. ROUTE. In some cases.Policy Based Routing You are a network engineer with ROUTE.3.4 R3(config-rtr)# area 11 virtual-link 2. QUESTION 43 Lab Simulation 4 .3.2.2.3. R4(config)# ipv6 router ospf 1 R4(config-router)# no area 54 virtual-link 3. the area 11 will become the 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. routers R2 and R3 must be configured with the area <area id> virtual-link <neighbor router-id> command.We knew that all areas in an Open Shortest Path First (OSPF) autonomous system must be physically connected to the backbone area (Area 0). 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. You may use the Test Workstation to generate HTTP traffic to validate your solution. + Configure virtual link on R2 (from the first output above. where this is not possible.com. Therefore.com 29 .3.4.2 Save the configuration: R3(config-rtr)# end R3# copy running-config startup-config You should check the configuration of R4.2. too. All other traffic may use either link.3. one via a frame relay link and one via an EoMPLS link. use the show ipv6 route command .4"): R3> enable R3# configure terminal R3(config)# ipv6 router ospf 1 R3(config-rtr)# no area 54 virtual-link 4. not R2's router-id 2.com has two connections to the Internet.3 R4(config-router)# end After finishing the configuration don't forget to ping between R1 and R4 to make sure they work well! Note: If you want to check the routing information. Get Latest & Actual 300-101 Exam's Question and Answers from exam. The area through which you configure the virtual link is known as a transit area.

com.2 exit 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 QUESTION 44 Lab Simulation .com 30 .exam. Two links have been added that will provide redundancy.1. http://www.100. a small IT company. One network is using OSPF as its IGP and the other is using EIGRP as its IGP.Answer: (1) 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 R1(config-route-map)# R1(config-route-map)# R1(config-route-map)# R1(config)# route-map pbr permit 10 match ip address 101 set ip next-hop 10. R4 has been added to the existing OSPF network to provide the interconnect between the OSPF and EIGRP networks. They have recently merged two organizations and now need to merge their networks as shown in the topology exhibit.EIGRP OSPF Redistribution You are a network engineer with ROUTE. Get Latest & Actual 300-101 Exam's Question and Answers from exam.

For example. You have been tasked with completing the implementation and ensuring that the network requirements are met. The redundant paths from the OSPF network to the EIGRP network must be available in case of a link failure. If the delay is 20000us then we need to divide it by 10. Answer: R2# show interface s0/0/0 Write down these 5 parameters.100. You may not remove or change any of the configuration commands currently on any of the routers. 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. All traffic must use the shortest path that provides the greatest bandwidth. we get Bandwidth=1544 Kbit. http://www. that is 20000 / 10 = 2000) For R3 we use the show interface fa0/0 to get 5 parameters too Get Latest & Actual 300-101 Exam's Question and Answers from exam. You may add new commands or change default values.com 31 .exam.1. these parameters are just used for reference and we can use other parameters with no problem. No static or default routing is allowed in either network. Reliability=255.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. notice that we have to divide the Delay by 10 because the metric unit is in tens of microsecond.16. Load=1. A previous network engineer has started the merger implementation and has successfully assigned and verified all IP addressing and basic IGP routing. Delay=20000 us.

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.R3# show interface fa0/0 For example we get Bandwidth=10000 Kbit. 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. Load=1. QUESTION 45 You have been asked to evaluate how EIGRP is functioning in a customer network.16. Note: The actual OPSF and EIGRP process numbers may change in the actual exam so be sure to use the actual correct values.exam. we must put the command below under EIGRP process to make traffic from R1 to go through R3 (R1 -> R2 -> R3 -> R4).100. http://www. Get Latest & Actual 300-101 Exam's Question and Answers from exam. but the overall solution is the same. Delay=1000 us.1 network (the network behind R4) in the routing table of R1 and make a ping from R1 to this network. Reliability=255.com 32 . which is smaller than the Administrative Distance of OSPF (110) -> the link between R2 & R3 will be preferred to the serial link between R2 & R4. Note: If the link between R2 and R3 is FastEthernet link. which is better than R1 -> R2 -> R4.

D.6.com 33 . find the IP address of the loopback0 interface on R6: We see that it is 150. so we issue the "show ip route 150.Traffic from R1 to R6’s Loopback address is load shared between R1-R2-R4-R6 and R1-R3-R5R6 paths. What is the ratio of traffic over each path? A.1.1.6. B. C.6" command from R1 and see Get Latest & Actual 300-101 Exam's Question and Answers from exam. http://www. 1:1 1:5 6:8 19:80 Answer: D Explanation: First.exam.6.

and 80 for the second path. http://www.this: Notice the "traffic share count" shows 19 for the first path. QUESTION 46 You have been asked to evaluate how EIGRP is functioning in a customer network.com 34 .exam. Get Latest & Actual 300-101 Exam's Question and Answers from exam.

B.com 35 .exam. Distribute-list using an ACL Distribute-list using a prefix-list Distribute-list using a route-map 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. C. D. QUESTION 47 You have been asked to evaluate how EIGRP is functioning in a customer network. Get Latest & Actual 300-101 Exam's Question and Answers from exam.What type of route filtering is occurring on R6 A. http://www.

http://www.com 36 . C.exam.Which key chain is being used for authentication of EIGRP adjacency between R4 and R2? A. D. B. CISCO EIGRP key MD5 Answer: A Explanation: R4 and R2 configs are as shown below: Get Latest & Actual 300-101 Exam's Question and Answers from exam.

exam.com 37 .Clearly we see the actual key chain is named CISCO. QUESTION 48 You have been asked to evaluate how EIGRP is functioning in a customer network. http://www. Get Latest & Actual 300-101 Exam's Question and Answers from exam.

Get Latest & Actual 300-101 Exam's Question and Answers from exam.What is the advertised distance for the 192. http://www.0 network on R1? A. which is shows as 1810944 for the 192. D.168. B.168. QUESTION 49 You have been asked to evaluate how EIGRP is functioning in a customer network.46. C.0 route.exam.46.com 38 . 333056 1938688 1810944 307456 Answer: C Explanation: R1's routing table is as follows The numbers after the route specify the administrative distance of the route (90 for EIGRP) and the distance metric of that particular route.

B. D. 10 20 30 40 Answer: B Explanation: The relevant configuration of R1 is shown below: Get Latest & Actual 300-101 Exam's Question and Answers from exam.exam. http://www.com 39 .What percent of R1's interfaces bandwidth is EIGRP allowed to use? A. C.

exam.com 40 . The customer has disabled your access to the show runningconfig command. Get Latest & Actual 300-101 Exam's Question and Answers from exam. http://www.ip bandwidth-percent eigrp 1 20 1 = the EIGRP AS 20 = 20% of the bandwidth QUESTION 50 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.

http://www.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.com 41 . C. D. B.exam. 1858 1601 600 1569 Answer: A Explanation: Part of the "show ip ospf topology" command on R5 shows this: Get Latest & Actual 300-101 Exam's Question and Answers from exam.

120. The customer has disabled your access to the show runningconfig command. Which of the following statements is true about the serial links that terminate in R3 A. QUESTION 51 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) shows the age is 1858. C.3. Answer: B Explanation: We can see the configured timers using the following command: Get Latest & Actual 300-101 Exam's Question and Answers from exam.exam. The R1-R3 link needs the neighbor command for the adjacency to stay up The R2-R3 link OSPF timer values are 30.40 R3 is responsible for flooding LSUs to all the routers on the network. http://www.40. D.com 42 .The Link ID of R3 (3. B. 120 The R1-R3 link OSPF timer values should be 10.3.

exam. http://www.QUESTION 52 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. Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 43 . The customer has disabled your access to the show runningconfig command.

C. http://www. E. B. F. Look for the Area 1 stats which shows this: QUESTION 53 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. D.How many times was SPF algorithm executed on R4 for Area 1? A. The customer has disabled your access to the show runningconfig command.com 44 .exam. Get Latest & Actual 300-101 Exam's Question and Answers from exam. 1 5 9 20 54 224 Answer: C Explanation: This can be found using the "show ip ospf" command on R4.

com 45 . C. E. B.Areas of Router 5 and 6 are not normal areas. inspect their routing tables and determine which statement is true? A. D. http://www.exam. R5's Loopback and R6's Loopback are both present in R5's Routing table R5's Loopback and R6's Loopback are both present in R6's Routing table Only R5's loopback is present in R5's Routing table Only R6's loopback is present in R5's Routing table Only R5's loopback is present in R6's Routing table Answer: A Explanation: Here are the routing tables of R5 and R6: Get Latest & Actual 300-101 Exam's Question and Answers from exam.

exam.Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 46 . http://www.

http://www.exam.com 47 .QUESTION 54 Drag and Drop Question Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam.

http://www.QUESTION 55 Drag and Drop Question Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam.exam.com 48 .

There is no default gateway. Then it fails to clear the entry.com 49 . D.exam.QUESTION 56 Refer to the exhibit. the router marks the adjacency as incomplete.1.0. A network administrator checks this adjacency table on a router. Reasons for Incomplete Adjacencies There are two known reasons for an incomplete adjacency: The router cannot use ARP successfully for the next-hop interface. C.201. After a clear ip arp or a clear adjacency command.201. B.168. B. The IP address of the router on FastEthernet is 209.1. incomplete ARP information incorrect ACL dynamic routing protocol failure serial link congestion Answer: A Explanation: To display information about the Cisco Express Forwarding adjacency table or the hardware Layer 3-switching adjacency table.168. The gateway of last resort is 192. Get Latest & Actual 300-101 Exam's Question and Answers from exam.201.168. The router will listen for all multicast traffic.0/0 route is the default route and is listed as the first CEF entry. QUESTION 57 Refer to the exhibit. C. Based on this FIB table. What is a possible cause for the incomplete marking? A. Here we see the next hop for this default route lists 192. Answer: C Explanation: The 0. use the show adjacency command.0. http://www. which statement is correct? A.1 as the default router (gateway of last resort). D.

Specifically. B. However. Because routers have limited resources.In an MPLS environment. especially when bursty traffic is present. starvation jitter latency windowing lower throughput Answer: ACE 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.) A. The queue is allowed to fill to its maximum size. to allow them to hold packets when the network is busy. and retransmission capabilities. most UDP transmitters are completely oblivious to drops and thus never lower transmission rates due to dropping. C. until there is space in the queue again.com/c/en/us/support/docs/ip/express-forwarding-cef/17812-cef-incomp. the queue is constantly full. for completion of the adjacency. the introduction of a sudden burst of traffic may cause large numbers of established. steady streams to lose packets simultaneously. http://www.com 50 . flow control. E. and then any new packets are simply discarded. When TCP flows are combined with UDP flows in a single service provider class and the class experiences congestion. D. in turn. then TCP Get Latest & Actual 300-101 Exam's Question and Answers from exam. This causes problems when used on TCP/IP routers handling multiple TCP streams. the size of these queues is also limited. Which condition causes this? A. While the network is stable. global synchronization tail drop random early detection 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.org/wiki/TCP_global_synchronization QUESTION 59 Which three problems result from application mixing of UDP and TCP streams within a network with no QoS? (Choose three. IP CEF should be enabeled for Label Switching.exam. Although some UDP applications have application-level windowing. it punts the packets to the CPU for ARP resolution and. Interface level command ip route-cache cef No ARP Entry When CEF cannot locate a valid adjacency for a destination prefix. C. and there are no problems except that the full queue results in high latency. B. rather than discarding them.wikipedia. TCP transmitters will throttle-back flows when drops have been detected. http://en. D. http://www.html#t4 QUESTION 58 A network engineer notices that transmission rates of senders of TCP traffic sharply increase and decrease simultaneously during periods of congestion. The simplest technique to limit queue size is known as tail drop. Routers on the Internet normally have packet queues.cisco.

If both endpoints support Ipv4 only. B. and applications.com/web/strategy/docs/gov/IPV6at_a_glance_c45-625859. Tunneling destinations are manually determined by the IPv4 address in the low-order 32 bits of IPv4-compatible IPv6 addresses. Even if WRED is enabled on the service provider class. This effect is called TCP-starvation/UDP-dominance.htm QUESTION 60 Which method allows IPv4 and IPv6 to work together without requiring both to be used for a single connection during the migration process? A. as WRED (for the most part) only affects TCP-based flows. http://www. C. the same behavior would be observed. it is not always possible to separate TCP-based flows from UDP-based flows. Tunneling does not enable users of the new protocol to communicate with users of the old protocol without dual-stack hosts. Answer: C Explanation: Using the tunneling option.com 51 . so it offers a very flexible coexistence strategy. dual-stack method 6to4 tunneling GRE tunneling NAT-PT Answer: A Explanation: Dual stack means that devices are able to run IPv4 and IPv6 in parallel.exam. potentially giving up their bandwidth to drop-oblivious UDP flows. Tunneling is less secure than dual stack or translation. Tunneling does not enable users of the new protocol to communicate with users of the old protocol without dual-stack hosts. 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.cisco. It allows hosts to simultaneously reach IPv4 and IPv6 content. http://www. D. Granted.com/warp/public/cc/so/neso/vpn/vpnsp/spqsd_wp. This can increase latency and lower the overall throughput. 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. but it is beneficial to be aware of this behavior when making such application-mixing decisions. C. D. as discussed in RFC 6144: Users of the new architecture cannot use the services of the underlying infrastructure. then IPv4 is used.flows will continually lower their rates. B. http://www.pdf QUESTION 61 Which statement about the use of tunneling to migrate to IPv6 is true? A. http://www. which negates interoperability. thus providing connectivity between users of the new protocol. Tunneling has two disadvantages. IPv6 is used on a dual stack endpoint. The advantage of this approach is that the new protocol can work without disturbing the old protocol.com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6- Get Latest & Actual 300-101 Exam's Question and Answers from exam.cisco. Tunneling is more difficult to configure than dual stack or translation.cisco. networks. 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. For sessions that support IPv6.

0/8 network because it is blocked by the ACL.0. Users on the 10. E. Disable CDP on the interface.16.5.0/24 network.0/8 network will not be advertised by Router B because the network statement for the 10.0. Router B will not advertise the 10. If you filter outbound.0. D.0/8 network will not be in the routing table on Router B.0.0.16. The 10.168. Answer: E Explanation: You can filter what individual routes are sent (out) or received (in) to any interface within your EIGRP configuration. Execute the no switchport command. Answer: B Get Latest & Actual 300-101 Exam's Question and Answers from exam.0. B.0/8 network. C. The 10.0/8 network can successfully ping users on the 192. http://www.0. C.com 52 . the next neighbor(s) will not know about anything except the 172.0. Which one statement is true? A.exam.0/16 network will be blocked by the ACL.0. Execute the vpdn enable command.solution/white_paper_c11-676278. B.0.0/16 route and therefore won't send it to anyone else downstream.0.html QUESTION 62 Refer to the exhibit. One example is noted above.5.168. YOU won't know about the route and therefore won't send it to anyone else downstream. If you filter inbound. Enable QoS FIFO for PPPoE support. QUESTION 63 Prior to enabling PPPoE in a virtual private dialup network group.0/24 cannot successfully ping users on the 10.0/8 network is missing from Router B.0. D. but users on the 192. Traffic from the 172. which task must be completed? A.0.0.

Answer: C Explanation: RFC 6296 describes a stateless Ipv6-to-Ipv6 Network Prefix Translation (NPTv6) function. It is checksum-neutral. NAT Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 53 .225 router(config-if)#ip helper-address 172. It interferes with encryption of the full IP payload.20. C.port 67 TACACS UDP port 49 http://www. B. 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. It rewrites transport layer headers.port 37 NetBIOS Name Server -. router(config-if)#ip helper-address 172. algorithmic translation function.14.14.ietf. but not to the servers.14. B. ip helper-address {ip address} When configuring the ip helper-address command.14. To avoid as many of the issues associated with NAPT44 as possible.20.html QUESTION 65 What is a function of NPTv6? A.org/html/rfc6296 QUESTION 66 IPv6 has just been deployed to all of the hosts within a network. NPTv6 is defined to include a two-way. The address-independence benefit stems directly from the translation function of the network prefix translator.20.port 138 Bootstrap Protocol (BOOTP) -. C.exam. http://www. Which command should be applied to the configuration to allow this? A.cisco-faq. Which feature allows IPv6 devices to communicate with IPv4 servers? A. D.QUESTION 64 A network engineer is configuring a routed interface to forward broadcasts of UDP 69.225 router(config-if)#udp helper-address 172. designed to provide address independence to the edge network. and nothing else.14.UDP port 69 Domain Name System (DNS) ?UDP port 53 Time service -. and 49 to 172. 53. the following broadcast packets will be forwarded by the router by default: TFTP -.225 69 53 49 Answer: A Explanation: To let a router forward broadcast packet the command ip helper-address can be used.com/163/forward_udp_broadcas.225 router(config-if)#ip udp helper-address 172. http://tools. D. It maintains a per-node state. such as SCTP. checksum-neutral. It is transport-agnostic with respect to transports that do not checksum the IP header.20.port 137 NetBIOS Datagram Server -. The broadcasts will be forwarded to the unicast address which is specified with the ip helper command.20.225.

In this example. Flow-set marking in 1280-byte or larger packets is enabled. Which type of statistics does the engineer see? A. RFC 6146).1 port 23 http://www. This action allows the responder to reply to the TCP Connect operation. C.0. connectionless-oriented service-oriented connection-oriented application-oriented Answer: C 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.wikipedia. allowing them to communicate.com 54 .B. and sends its packets to the resulting address. The Ipv6 client embeds the Ipv4 address it wishes to communicate with using these bits. B.html QUESTION 68 A network engineer executes the ipv6 flowset command. Answer: A Explanation: Enabling Flow-Label Marking in Packets that Originate from the Device This feature allows the Get Latest & Actual 300-101 Exam's Question and Answers from exam.0. http://en.com/c/en/us/td/docs/ios-xml/ios/ipsla/configuration/15-mt/sla-15-mtbook/sla_tcp_conn.exam.cisco. IPv6 flow control is enabled on the router. E. the control protocol is disabled on the source (Device B). IP SLAs uses the control protocol to notify the IP SLAs responder to enable the target port temporarily. http://www. C. as shown in the "TCP Connect Operation" figure in the "Information About the IP SLAs TCP Connect Operation" section.org/wiki/NAT64 QUESTION 67 A network engineer initiates the ip sla responder tcp-connect command in order to gather statistics for performance gauging. The operation is scheduled to start immediately. In this example. Device A (target device) Configuration configure terminal ip sla responder tcp-connect ipaddress 10. D. IPv6 PMTU is enabled on the router. C.0. NATng NAT64 dual-stack NAT DNS64 Answer: C Explanation: NAT64 is a mechanism to allow Ipv6 hosts to communicate with Ipv4 servers.0. The NAT64 server then creates a NAT-mapping between the Ipv6 and the Ipv4 address. What is the result? A. there is no need to send the control message. D. D. Flow-label marking in 1280-byte or larger packets is enabled.1). 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. see RFC 6052. because the target is not a Cisco device and a well-known TCP port is used. B.

shtml QUESTION 71 A network administrator executes the command clear ip route. output drops enqueuing for the RP fragmentation failures adjacency issues Answer: A Explanation: http://www. http://www. D.exam. C. 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. D.com/c/en/us/td/docs/ios/12_0s/feature/guide/oaggnf. The command access-list 1 defines interesting traffic that is allowed through the tunnel. C. D.cisco. Answer: D Explanation: http://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.html QUESTION 69 A network engineer executes the show ip flow export command. http://www. Which functions do the two commands serve in this scenario? A. B. IP routing FIB ARP cache MAC address table Cisco Express Forwarding table topology table Answer: AB QUESTION 72 Which switching method is used when entries are present in the output of the command show ip Get Latest & Actual 300-101 Exam's Question and Answers from exam. B. 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.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094e77. C. The command access-list 1 permit any defines only one machine that is allowed through the tunnel.) A.html QUESTION 70 A network engineer is asked to configure a "site-to-site" IPsec VPN tunnel.device to track destinations to which the device has sent packets that are 1280 bytes or larger. F.cisco.com 55 . B. E.com/c/en/us/td/docs/ios-xml/ios/ipv6_basic/configuration/15-mt/ip6b-15-mtbook/ip6-mtu-path-disc. Which line in the output indicates that the send queue is full and export packets are not being sent? A. Which two tables does this command clear and rebuild? (Choose two.

Set window scaling to be used on the remote host. use the "show ip cache" EXEC command. D. 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). B. Use the ip tcp window-size command in global configuration mode to configure the TCP window size. 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. http://www. Execute the command ip tcp adjust-mss. http://www.com 56 .exam. The TCP Window Scaling feature complies with RFC 1323. The window size can increase to a scale factor of 14. Typical applications use a scale factor of 3 when deployed in LFNs. To display the routing table cache used to fast switch IP traffic.cisco. TCP Extensions for High Performance.com/c/en/us/td/docs/ios-xml/ios/ipapp/configuration/12-4t/iap-12-4t-book/iaptcp. Execute the command ip tcp queuemax. Destination addresses are stored in the high-speed cache to expedite forwarding. Set TCP options to "enabled" on the remote host.) A. D. E.cache? A. the remote host must also support this feature and its window size must be increased. http://www. Answer: AB Explanation: The TCP Window Scaling feature adds support for the Window Scaling option in RFC 1323.html#GUID-BD998AC6-F128-47DD-B5F7-B226546D4B08 QUESTION 74 Which PPP authentication method sends authentication information in cleartext? A. C. C. B. MS CHAP CDPCP CHAP PAP Get Latest & Actual 300-101 Exam's Question and Answers from exam.html #wp1038133 QUESTION 73 Which two actions must you perform to enable and use window scaling on a router? (Choose two. In order for this to work. Fast switching is enabled by default on all interfaces that support fast switching. fast switching process switching Cisco Express Forwarding switching 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. Routers offer better packet-transfer performance when fast switching is enabled. The TCP Window Scaling enhancement provides that support. The larger scalable window size will allow TCP to perform better over LFNs. D. C.com/c/en/us/td/docs/ios/12_2/switch/command/reference/fswtch_r/xrfscmd5.cisco. Execute the command ip tcp window-size 65536. B.

cisco. B. Frame Relay inverse ARP static DLCI mapping Frame Relay broadcast queue 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. the table is then used to supply the next-hop protocol address or the DLCI for outgoing traffic. the connection is terminated. http://www. C.html QUESTION 76 What is the default OSPF hello interval on a Frame Relay point-to-point network? A. the host sends a "challenge" message to the remote node.html QUESTION 75 Which protocol uses dynamic address mapping to request the next-hop protocol address for a specific connection? A.com/c/en/us/support/docs/wan/point-to-point-protocol-ppp/10241-ppp-callinhostname. The remote node responds with a value calc"lated usi"g a one-way hash function. After the PPP link is established. 10 20 30 40 Answer: A Explanation: Before you troubleshoot any OSPF neighbor-related issues on an NBMA network.com 57 . periodically verifies the identity of the remote node using a three-way handshake. otherwise.exam. The host checks the response against its own calculation of the expected hash value. PAP authentication does not provide any protection against playback and line sniffing. D. given its known DLCI. http://www.com/c/en/us/td/docs/ios/12_2/wan/configuration/guide/fwan_c/wcffrely. hence. D. CHAP authentication. B. on the other hand. Responses to Inverse ARP requests are entered in an address-to-DLCI mapping table on the router or access server. the authentication is acknowledged. 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 Point-to-Multipoint Broadcast Non-Broadcast Get Latest & Actual 300-101 Exam's Question and Answers from exam.Answer: D Explanation: PAP authentication involves a two-way handshake where the username and password are sent across the link in clear text. http://www. If the values match. C.cisco.

cisco.http://www. The interface identifier replaces the right-most zeroes of the link-local prefix. Once the node verifies that its tentative address is unique on the link. It is formed by appending the interface identifier to well-known link-local prefix FE80::0. further tasks are performed only by the hosts. If no routers are present. it has IP-connectivity to other neighbors on this link. it assigns that link-local address to the interface. DHCPv6 request router-advertisement neighbor-solicitation redirect Answer: B Explanation: Autoconfiguration is performed on multicast-enabled links only and begins when a multicastenabled interface is enabled (during system startup or manually). Nodes (both. https://sites. B. The router has the following interface parameters: mac address C601. If a node responds with a Neighbor Advertisement message with tentative address as the target address. and was asked to document the IPv6 address of the router.Before the link-local address can be assigned to the interface.google. http://www.html QUESTION 77 A router with an interface that is configured with ipv6 address autoconfig also has a link. C. D. a stateful configuration is required. At this stage. hosts and routers) begin the process by generating a link-local address for the interface. The routers will need manual configuration (or stateful configuration) to receive site-local or global addresses. B.local address assigned. manual configuration is required.com/site/amitsciscozone/home/important-tips/ipv6/ipv6-statelessautoconfiguration QUESTION 78 An engineer has configured a router to use EUI-64. the Router Advertisements notify what sort of configurations the hosts need to do and the hosts receive a global unicast IPv6 address. The next phase involves obtaining Router Advertisements from routers if any routers are present on the link. Which message is required to obtain a global unicast address when a router is present? A. 2001:DB8:0:1:C601:42FF:FE0F:7 2001:DB8:0:1:FFFF:C601:420F:7 2001:DB8:0:1:FE80:C601:420F:7 2001:DB8:0:1:C601:42FE:800F:7 Answer: A Explanation: Get Latest & Actual 300-101 Exam's Question and Answers from exam. the node performs the Duplicate Address Detection mechanism to see if any other node is using the same link-local address on the link.420F.exam. The autoconfiguration on the routers stop at this stage. It does this by sending a Neighbor Solicitation message with target address as the "tentative" address and destination address as the solicitednode multicast address corresponding to this tentative address. If routers are present.0007 subnet 2001:DB8:0:1::/64 Which IPv6 addresses should the engineer add to the documentation? A.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13693-22. the address is a duplicate address and must not be used. D. C. Hence.com 58 .

an IPv6 traffic filter was configured under various interfaces on the local router. D. To remove the autonomous-system for an EIGRP routing process from within a VPN VRF instance. OSPFv3 neighbor adjacencies were lost. which caused the neighbor relationships to fail. It sets the BGP autonomous system number in a VRF. as per RFC2373. The 16-bit 0xFFFE is then inserted between these two 24-bits to for the 64-bit EUI address.exam. The global anycast address must be added to the traffic filter to allow OSPFv3 to work properly. D.Extended Unique Identifier (EUI). IEEE has chosen FFFE as a reserved value which can only appear in EUI-64 generated from the EUI48 MAC address. with one being OUI (Organizationally Unique Identifier) and the other being NIC specific. This feature is a key benefit over IPv4 as it eliminates the need of manual configuration or DHCP as in the world of IPv4.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nxos/unicast/configuration/guide/l3_cli_nxos/l3_ospfv3.cisco. The traffic filter is blocking all ICMPv6 traffic. The IPv6 EUI-64 format address is obtained through the 48-bit MAC address. IPv6 traffic filtering can be implemented only on SVIs.cisco. shortly after implementing the traffic filter. use the autonomous-system command in address-family configuration mode. B. C. However. QUESTION 79 For security purposes. B. use the no form of this command. allows a host to assign iteslf a unique 64-Bit IP Version 6 interface identifier (EUI-64).html QUESTION 80 What is the purpose of the autonomous-system {autonomous-system-number} command? A. Autonomous-system autonomous-system-number no autonomous-system autonomous-system-number http://www. 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. Which interface configuration output can be applied to the corporate router to allow communication to the remote sites? Get Latest & Actual 300-101 Exam's Question and Answers from exam. It sets the global BGP autonomous system number. Answer: C Explanation: OSPFv3 uses link-local Ipv6 addresses for neighbor discovery and other features.com 59 . The link-local addresses that were used by OSPFv3 were explicitly denied. C. It sets the global EIGRP autonomous system number. The Mac address is first separated into two 24-bits. It sets the EIGRP autonomous system number in a VRF. http://www.html# wp1062796 QUESTION 81 A company has just opened two remote branch offices that need to be connected to the corporate network. What caused this issue? A. 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. http://www.com/c/en/us/td/docs/ios/iproute_eigrp/command/reference/ire_book/ire_a1.

Instead the GRE tunnel is configured with the command tunnel mode gre multipoint.165.A. D. interface Tunnel0 bandwidth 1536 ip address 209. C.10 255. a p2p GRE tunnel may connect to an mGRE tunnel.255. This means that an mGRE tunnel on the hub may connect to a p2p tunnel on the branch.62. interface fa 0/0 bandwidth 1536 ip address 209. 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.168.230 255.165. The mGRE configuration is as follows: ! interface Tunnel0 bandwidth 1536 ip address 10.255.x. http://www.230 255.201.1.com 60 .201.200.255. This command is used instead of the tunnel destination x.255.x.cisco. An mGRE interface does not have a configured destination. tunnel interfaces by default are point-topoint (p-p) using GRE encapsulation.231 255.161. Which three pieces of information are displayed in the output? (Choose three.2 tunnel destination 209.0 tunnel source Serial0/0 tunnel mode gre multipoint http://www. an mGRE tunnel requires NHRP to resolve the tunnel endpoints. effectively they have the tunnel mode gre command.224 tunnel mode gre multipoint C.x found with p2p GRE tunnels.224 tunnel source 209.165.1 tunnel-mode dynamic Answer: A Explanation: The configuration of mGRE allows a tunnel to have multiple destinations.exam.200.200. Conversely. inbound crypto map remaining key lifetime path MTU tagged packets Get Latest & Actual 300-101 Exam's Question and Answers from exam.255. which is not seen in the configuration because it is the default.231 255.165. Besides allowing for multiple destinations.255.255.1 tunnel-mode dynamic D.165.) A. The distinguishing feature between an mGRE interface and a p2p GRE interface is the tunnel destination. interface fa0/0 bandwidth 1536 ip address 209. interface Tunnel0 bandwidth 1536 ip address 209. Note.200.255.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/DMVPDG/DMVPN_2 _ Phase2.165.html QUESTION 82 A network engineer executes the show crypto ipsec sa command.224 tunnel source 192. B.255.255.224 tunnel source Serial0/0 tunnel mode gre multipoint B.

1 and 12.1. Authentication Header (AH) is not used since there are no AH SAs.1. remote crypto endpt. The encrypted tunnel is built between 12.cisco.1.1.1.2.: 12. expire 01:59:47 TypE. You can see the two Encapsulating Security Payload (ESP) SAs built inbound and outbound.1.: 12. 12.0 and 10. #pkts decompressed: 0 #pkts not compressed: 0. #pkts digest 7767918 #pkts decaps: 7760382.com 61 .1.1.1.1. flow_id: 1444. 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 .1. #pkts verify 7760382 #pkts compressed: 0.255. interface: FastEthernet0 Crypto map tag: test.255.0/0/0) current_peer: 12.1.0/255.1.2 path mtu 1500. #Recv errors 0 local crypto endpt. failed: 0. dynamic.12.html QUESTION 83 Refer to the following output: Router#show ip nhrp detail 10. invalid identity packets Answer: ABC Explanation: show crypto ipsec sa This command shows IPsec SAs built between peers. This output shows an example of the show crypto ipsec sa command (bolded ones found in answers for this question). #pkts decompress failed: 0.255. in use settings ={Tunnel.1.2.2 What does the authoritative flag mean in regards to the NHRP information? Get Latest & Actual 300-101 Exam's Question and Answers from exam.0/255. } slot: 0.1. Tunnel1 created 00:00:12.2/8 via 10. local addr.1 local ident (addr/mask/prot/port): (20.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/5409ipsec-debug-00.1. #pkts encrypt: 7767918.1.1. flow_id: 1443.0.255. #pkts decrypt: 7760382.0/0/0) remote ident (addr/mask/prot/port): (10. #pkts compr. } slot: 0.1.exam.1.} #pkts encaps: 7767918.2 for traffic that goes between networks 20. conn id: 3442. 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: http://www. in use settings ={Tunnel. #send errors 1.1.E. flags={origin_is_acl.2 PERMIT.1. Flags: authoritative unique nat registered used NBMA address: 10.1. conn id: 3443.1. media mtu 1500 current outbound spi: 3D3 inbound esp sas: spi: 0x136A010F(325714191) transform: esp-3des esp-md5-hmac . untagged packets F. http://www.1.

cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/29240dcmvpn. The NHRP mapping entry cannot be overwritten. D. C. NHRP mapping is for networks that are local to this router.exam. D.com/c/en/us/td/docs/ios/12_4/ip_addr/configuration/guide/hadnhrp. http://www. B. In order to resolve this problem.A. The mapping entry was created in response to an NHRP registration request.html#Prblm1 QUESTION 85 Drag and Drop Question Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam. Data packets are process switches for this mapping entry. Solution When DMVPN tunnels flap. check the neighborship between the routers as issues with neighborship formation between routers may cause the DMVPN tunnel to flap. C. Answer: A Explanation: http://www. E.cisco. a routing neighbor reachability issue a suboptimal routing table interface bandwidth congestion that the GRE tunnel to hub router is not encrypted Answer: A Explanation: DMVPN Tunnel Flaps Intermittently Problem DMVPN tunnel flaps intermittently.html QUESTION 84 Which common issue causes intermittent DMVPN tunnel flaps? A. make sure the neighborship between the routers is always up. It was obtained directly from the next-hop server.com 62 . B. http://www.

QUESTION 86 Drag and Drop Question Answer: QUESTION 87 Drag and Drop Question Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam. http://www.com 63 .exam.

exam. http://www.QUESTION 88 Drag and Drop Question Answer: QUESTION 89 Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 64 .

Drag and Drop Question Answer: QUESTION 90 Drag and Drop Question Place the BGP commands to the proper locations Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam. http://www.exam.com 65 .

QUESTION 91 Drag and Drop Question Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam.com 66 .exam. http://www.

exam. for DSL connectivity and removing the need for the end-user PC to run the PPPoE client software D. D. An IPv6 header contains the protocol field. C. A. B. A. E. to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity C. Get Latest & Actual 300-101 Exam's Question and Answers from exam. IPv6 routers send RA messages. An IPv6 address is 128 bits long.QUESTION 92 Drag and Drop Question Answer: QUESTION 93 What is the purpose of configuring the router as a PPPoE client? Select the best response.) Select 3 response(s). http://www. An IPv6 header is 20 bits long. which bridges the Ethernet frames from the router to the cable modem termination system Answer: C QUESTION 94 Which three are characteristics of IPv6? (Choose three. to provide VPN access over L2TP B. for connecting the router to a cable modem. An IPv6 header contains the next header field.com 67 .

C. A. D. Then the shortest path first (SPF) algorithm is performed. Then the OSPF neighbors are reformed. IPv6 address for the host lifetime of the prefix prefixes for the link keepalive timers request for the local host IP address any route advertisements it has received Answer: BC QUESTION 96 Which statement is true about IPv6? Select the best response. B. Answer: ACE QUESTION 95 When an IPv6 enabled host boots. all hosts in a local segment all routers in a local segment all hosts in a particular multicast group all routers in an autonomous system Answer: B QUESTION 98 What does the command clear ipv6 ospf process accomplish? Select the best response. C.com 68 . The route table is cleared.F. http://www. Answer: D Get Latest & Actual 300-101 Exam's Question and Answers from exam. IPv6 hosts use anycast addresses to assign IP addresses to interfaces. B. D.) Select 2 response(s). Only one IPv6 address is assigned per node. C. An IPv6 router responds with a router advertisement (RA). The shortest path first (SPF) algorithm is performed on the LSA database. The OSPF adjacencies are cleared and initiated again. Only one IPv6 address can be assigned to each interface. C. The OSPF database is repopulated. Which two items are contained in the RA? (Choose two. B. Each host can autoconfigure its address without the aid of a DHCP server. B. it sends a router solicitation (RS) message. D. An IPv6 header contains the header checksum field.exam. A. F. Answer: C QUESTION 97 What is the IPv6 address FF02::2 used for? Select the best response. A. A. D. E.

the IPv6 OSPF interface area ID combination assigns interfaces to OSPFv3 areas. In interface configuration mode. http://www. In router configuration mode. A. OSPFv3 for IPv6 authentication is supported by MD5 authentication. the IPv6 OSPF process area ID combination assigns interfaces to OSPFv3 areas. OSPFv3 for IPv6 authentication is supported by SHA-1 authentication. Answer: C QUESTION 100 The following exhibit shows ipv6 route output.com 69 .QUESTION 99 When implementing OSPFv3. B. B. D. the network wildcard area ID combination assigns networks to OSPFv3 areas. C.exam. D. OSPFv3 for IPv6 authentication is supported by IPv4 IPsec. A. B. Get Latest & Actual 300-101 Exam's Question and Answers from exam. OSPFv3 for IPv6 authentication is supported by IPv6 IPsec. What would the metric be for a summary route that summarizes all three OSPFv3 routes displayed? A. In interface configuration mode. In router configuration mode. D. which statement describes the configuration of OSPF areas? Select the best response. 160 140 120 100 Answer: D QUESTION 101 How is authentication handled with OSPFv3? Select the best response. the OSPFv3 area ID combination assigns interfaces to OSPFv3 areas. C. C.

EIGRP has been configured on all routers in the network. B.1. http://www. The subnet keyword on the border router in the redistribute EIGRP command. C. but not all of the expected routes.0 0. On a basis of the show ip eigrp topology output provided.1.1.0 10.0 10. E. C.0. EIGRP is configured on all routers in the network.com 70 .0. The border router is using a proper seed metric for OSPF.0.Answer: C QUESTION 102 Refer to the exhibit. What additional configuration statement should be included on router R4 to advertise a default route to its neighbors? Select the best response. The border router is using a proper seed metric for EIGRP.0 R4(config)# ip route 0.1 R4(config)# ip route 10. R4(config)# ip default-network 10. you are seeing some.0.0. D.exam. The missing EIGRP routes are present in the routing table of the border router.) Select 2 response(s).1 R4(config-router)# default-information originate Answer: A QUESTION 103 You have implemented mutual route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one of the OSPF routers within the OSPF routing domain. Get Latest & Actual 300-101 Exam's Question and Answers from exam. Answer: DE QUESTION 104 Refer to the exhibit. The administrative distance is set for OSPF and EIGRP. A. B. A. what conclusion can be derived? Select the best response.1.0 255. D.0.0.0. Which two things should you verify to troubleshoot this problem? (Choose two.0.0.

0/24. and ::/128 is the multicast address. C. F.1.exam. ::/0 is the anycast address. Router R1 is waiting for a reply from the neighbor 10.) Select 3 response(s).1. A. A. D.6. D.6.0/24 out of interface FastEthernet0/0. 2031:0:240F::09C0:123A:121B 2031::240F::09C0:123A:121B 2031::240F:9C0::123A:121B 2031::240F:::09C0:123A:121B Answer: A QUESTION 106 What is the difference between the IPv6 addresses ::/0 and ::/128? Select the best response. No virtual links are allowed. ::/0 is the unicast address. ::/0 is the default route. B. Answer: D QUESTION 105 Using the rules for IPv6 addressing.1 to the hello message sent out before it declares the neighbor unreachable. Answer: E QUESTION 107 Which three restrictions apply to OSPF stub areas? (Choose three. Redistribution is not allowed unless the packet is changed to a type 7 packet. Router R1 can send traffic destined for network 10.1. B. and ::/128 is the multicast address. ::/0 is the unspecified address. C. and ::/128 is the anycast address. ::/0 is the anycast address.6. E. B. C. and ::/128 is the default address.1. Router R1 is waiting for a reply from the neighbor 10.2.A.com 71 . and ::/128 is the unspecified address.1. B. D.2. The area cannot be a backbone area.1. ::/0 is the unicast address.1 in response to the query sent out about network 10. http://www.2. Router R1 is waiting for a reply from the neighbor 10. C.0/24. A. and ::/128 is the multicast address.1 to the hello message sent out inquiring for a second successor to network 10. Get Latest & Actual 300-101 Exam's Question and Answers from exam. how can the address 2031:0000:240F:0000:0000:09C0:123A:121B be rewritten? Select the best response.

B.99. Get Latest & Actual 300-101 Exam's Question and Answers from exam. E. the first two bytes of the IPv6 address will be locally derived and the next two bytes will be the hexadecimal equivalent of the IPv4 address. http://www. In a 6to4 tunnel. D. All routes that do no match clauses 10 and 20 of the route map are redistributed with their tags set to 8. The map redistributes into EIGRP all routes that match the pfx prefix list and the five metric values 40000. The map prohibits the redistribution of all type 2 external OSPF routes.168. Answer: ABE QUESTION 108 Refer to the exhibit. In a 6to4 tunnel. 255. Answer: AEF QUESTION 109 Which two statements are true about 6to4 tunnels? (Choose two.1 would be converted to the 2002:c0a8:6301::/48 IPv6 address. The map prohibits the redistribution of all external OSPF routes with tag 6 set.exam. B. C. A. E. and 1500. No autonomous system border routers are allowed. 1. Interarea routes are suppressed. In a 6to4 tunnel. F.com 72 .D. The map permits the redistribution of all type 1 external OSPF routes. 1000. the IPv4 address 192. C. The map prohibits the redistribution of all type 2 external OSPF routes with tag 6 set.) A. Which three statements accurately describe the result of applying the exhibited route map? Select 3 response(s). F. the first two bytes of the IPv6 address will be 0?002 and the next four bytes will be the hexadecimal equivalent of the IPv4 address. The area has no more than 10 routers.

http://www. E. Both Dev-1 and Dev-3 are using the default OSPF router priority.12 ::ffff:10. Dev-3 is the DR because it has a higher OSPF router priority. Dev-1 is the DR because it has a lower OSPF router ID.99. C. Answer: AC QUESTION 110 Which IPv4-mapped IPv6 address is equivalent to IPv6 address ::ffff:AC11:AC11? Select the best response. In a 6to4 tunnel. Answer: A QUESTION 112 During a recent OSPF election among three routers.10.11 Answer: E QUESTION 111 The Dev-1 and Dev-3 routers are OSPF neighbors over the Ethernet 0/0 connection.168. ::ffff:10.99.11.172.193.10.193 ::ffff 172.D. F. the IPv4 address 192. Based on the show ip ospf neighbor output from the Dev-1 and Dev-3 routers. Dev-3 is the DR because it has a lower OSPF router ID.193.12.exam. D.17. RTA was elected the DR and RTB was elected the BDR.44.14. A.49.161.com 73 . Assume that RTA fails. In a 6to4 tunnel. Dev-1 is the DR because it has a higher OSPF router priority.1 would be converted to the 2002:c0a8:6301::/16 IPv6 address.168. B.14 ::ffff44. as seen in the graphic. C.49 ::ffff161. the IPv4 address 192.17 ::ffff193. which statement is true? Select the best response.1 would be converted to the 2002:1315:4463:1::/64 IPv6 address. E. A. D. B. E. What will happen when RTA comes back online? Get Latest & Actual 300-101 Exam's Question and Answers from exam. and that RTB takes the place of the DR while RTC becomes the new BDR.

RTA will take the place of DR only if both RTB and RTC fail. http://www. E2 is the default external metric when redistributing routes from other routing protocols into OSPF. B. A. A new election will take place establishing an all new DR and BDR based on configured priority levels and MAC addresses.com 74 . E1 is useful when internal routing should be included in path selection. Answer: C QUESTION 113 By default. RTA will take the place of DR immediately upon establishing its adjacencies.Select the best response. Answer: B Explanation: Type E1 external routes calculate the cost by adding the external cost to the internal cost of each link that the packet crosses while the external cost of E2 packet routes is always the external cost only. A. Get Latest & Actual 300-101 Exam's Question and Answers from exam. They will appear in the OSPF routing table as type E2 routes. D. C. D.exam. Only routes with lower administrative distances will be imported. which statement is correct regarding the redistribution of routes from other routing protocols into OSPF? Select the best response. C. All imported routes will be automatically summarized when possible. B. They will appear in the OSPF routing table as type E1 routes. RTA will take the place of DR only if RTB fails. Summarized routes are not accepted. E2 is useful if you do not want internal routing to determine the path. E.

Ensure that the interfaces can ping their directly connected neighbors. C. EIGRP stub routing should be used on hub routers only. D. Answer: B QUESTION 116 Which three benefits does the Cisco Easy Virtual Network provide to an enterprise network? (Choose three. troubleshooting.) A. E. B. Stub routers are not queried for routes. Which three elements can you use to identify an IPv6 packet via its header. D. and usability reduced configuration and deployment time for dot1q trunking increased network performance and throughput decreased BGP neighbor configurations Answer: ABC QUESTION 117 The enterprise network WAN link has been receiving several denial of service attacks from both IPv4 and IPv6 sources. D. B. B.) A. C. F. E. Traffic Class Source address Flow Label Hop Limit Destination Address Get Latest & Actual 300-101 Exam's Question and Answers from exam.exam. A hub router prevents routes from being advertised to the remote router. http://www. B. D.) What should be done to correctly set up OSPF? Select the best response. E. simplified Layer 3 network virtualization improved shared services support enhanced management. C.com 75 . Ensure that IP classless is enabled. A stub router should have only EIGRP hub routers as neighbors. A.QUESTION 114 What are three key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network? (Choose three." (Output is omitted. C. Answer: BCE QUESTION 115 An administrator types in the command router ospf 1 and receives the error message: "OSPF process 1 cannot start. Only remote routers are configured as stubs. in order to filter future attacks? (Choose three.) A. Ensure that an interface has been configured with an IP address. Ensure that an interface has been configured with an IP address and is up. F. Spoke routers connected to hub routers answer the route queries for the stub router.

The packets that are being sent use DSCP EF.F. Which statement about the configuration is true? A. Answer: A QUESTION 120 Refer to the exhibit. http://www. Jitter is being tested with TCP packets to port 65051. B. B. C. D. Which statement about the command output is true? Get Latest & Actual 300-101 Exam's Question and Answers from exam. Fragment Offset Answer: ACD QUESTION 118 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.m. typically is not fragmented typically is fragmented causes windowing causes excessive delays for video traffic Answer: A QUESTION 119 Refer to the exhibit.com 76 . The monitor starts at 12:05:00 a. 20 packets are being sent every 30 seconds. C.exam. D.

10.A. B. a private AS number a public AS number a private 4-byte AS number a public 4-byte AS number Answer: A QUESTION 122 Refer to the exhibit.2 on TCP port 5127.1 on UDP port 5127. The router receives flow information from 10.10.2 on UDP port 5127.exam. which route is the summarized route? Get Latest & Actual 300-101 Exam's Question and Answers from exam. C.10. B. C. The router receives flow information from 10.10. Answer: A QUESTION 121 Which type of BGP AS number is 64591? A.10.10. D. The router exports flow information to 10. D. http://www.10.10.com 77 . When summarizing these routes. The router exports flow information to 10.1 on TCP port 5127.

D. Ethernet0/0 OI 2001:DB8::/32 [110/100] via FE80::A8BB:CCFF:FE00:6F00. OI 2001:DB8::/48 [110/100] via FE80::A8BB:CCFF:FE00:6F00. D. Dual stack means that devices are able to run IPv4 and IPv6 in parallel.A. Dual stack changes the IP addresses on hosts from IPv4 to IPv6 automatically. C. C. Dual stack translates IPv4 addresses to IPv6 addresses. B. Ethernet0/0 OI 2001:DB8::/24 [110/100] via FE80::A8BB:CCFF:FE00:6F00. C. Answer: B QUESTION 125 Refer to the exhibit. Dual stack translates IPv6 addresses to IPv4 addresses. Ethernet0/0 OI 2001:DB8::/64 [110/100] via FE80::A8BB:CCFF:FE00:6F00. B. D.com 78 . DMVPN Cisco Easy VPN GETVPN GREVPN Answer: B QUESTION 124 Which statement about dual stack is true? A. The command is executed while configuring a point-to-multipoint Frame Relay interface. http://www. Ethernet0/0 Answer: A QUESTION 123 Which Cisco VPN technology uses AAA to implement group policies and authorization and is also used for the XAUTH authentication method? A. C. D.exam. link-local site-local global multicast Answer: A Get Latest & Actual 300-101 Exam's Question and Answers from exam. Which type of IPv6 address is portrayed in the exhibit? A. B. B.

D. http://www. Verify crypto maps. link-local Get Latest & Actual 300-101 Exam's Question and Answers from exam. It is used to translate IPv6 prefixes to IPv4 subnets with appropriate masks. D. Verify the GRE tunnels. C. C. Verify NHRP. B. C. It is used to translate IPv4 prefixes to IPv6 prefixes. B. D. It is used to translate an IPv6 address prefix to another IPv6 prefix.com 79 . D. B. Answer: B QUESTION 127 Which parameter in an SNMPv3 configuration offers authentication and encryption? A. by forwarding the packet by dropping the packet by creating a new FIB entry for the packet by looking in the routing table for an alternate FIB entry Answer: B QUESTION 129 A network administrator is troubleshooting a DMVPN setup between the hub and the spoke.exam. It is used to translate IPv4 addresses to IPv6 link-local addresses. B. Which action should the administrator take before troubleshooting the IPsec configuration? A. Verify ISAKMP.QUESTION 126 Which statement about the NPTv6 protocol is true? A. Answer: A QUESTION 130 Which IPv6 address type is seen as the next-hop address in the output of the show ipv6 rip RIPng database command? A. auth noauth priv secret Answer: C QUESTION 128 How does an IOS router process a packet that should be switched by Cisco Express Forwarding without an FIB entry? A. C.

B.
C.
D.
E.

global
site-local
anycast
multicast

Answer: A

QUESTION 131
Refer to the exhibit. The network setup is running the RIP routing protocol.
Which two events will occur following link failure between R2 and R3? (Choose two.)

A.
B.
C.
D.

R2 will advertise network 192.168.2.0/27 with a hop count of 16 to R1.
R2 will not send any advertisements and will remove route 192.168.2.0/27 from its routing table.
R1 will reply to R2 with the advertisement for network 192.168.2.0/27 with a hop count of 16.
After communication fails and after the hold-down timer expires, R1 will remove the
192.168.2.0/27 route from its routing table.
E. R3 will not accept any further updates from R2, due to the split-horizon loop prevention
mechanism.
Answer: AC

QUESTION 132
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 192.1.1.20 192.1.1.254
netmask 255.255.255.0
Upon entering the command on the IOS router, the following message is
seen on the console:
%Dynamic Mapping in Use, Cannot remove message or the %Pool outpool in
use, cannot destroy
What is the least impactful method that the engineer can use to modify the existing IP NAT
configuration?
A. Clear the IP NAT translations using the clear ip nat traffic * " command, then replace the NAT
configuration quickly, before any new NAT entries are populated into the translation table due to
active NAT traffic.
B. Clear the IP NAT translations using the clear ip nat translation * " command, then replace the
NAT configuration quickly, before any new NAT entries are populated into the translation table
due to active NAT traffic.

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80

C. Clear the IP NAT translations using the reload command on the router, then replace the NAT
configuration quickly, before any new NAT entries are populated into the translation table due to
active NAT traffic.
D. Clear the IP NAT translations using the clear ip nat table * " command, then replace the NAT
configuration quickly, before any new NAT entries are populated into the translation table due to
active NAT traffic.
Answer: B

QUESTION 133
To configure SNMPv3 implementation, a network engineer is using the AuthNoPriv security level.
What effect does this action have on the SNMP messages?
A.
B.
C.
D.

They become unauthenticated and unencrypted.
They become authenticated and unencrypted.
They become authenticated and encrypted.
They become unauthenticated and encrypted.

Answer: B

QUESTION 134
Which three items can you track when you use two time stamps with IP SLAs? (Choose three.)
A.
B.
C.
D.
E.
F.

delay
jitter
packet loss
load
throughput
path

Answer: ABC

QUESTION 135
An engineer executes the ip flow ingress command in interface configuration mode. What is the
result of this action?
A.
B.
C.
D.

It enables the collection of IP flow samples arriving to the interface.
It enables the collection of IP flow samples leaving the interface.
It enables IP flow while disabling IP CEF on the interface.
It enables IP flow collection on the physical interface and its subinterfaces.

Answer: A

QUESTION 136
Two aspects of an IP SLA operation can be tracked: state and reachability. Which statement
about state tracking is true?
A. When tracking state, an OK return code means that the track's state is up; any other return code
means that the track's state is down.

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81

B. When tracking state, 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 down.
C. When tracking state, an OK return code means that the track's state is down; any other return
code means that the track's state is up.
D. When tracking state, 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 up.
Answer: A

QUESTION 137
A network engineer has set up VRF-Lite on two routers where all the interfaces are in the same
VRF. At a later time, a new loopback is added to Router 1, but it cannot ping any of the existing
interfaces. Which two configurations enable the local or remote router to ping the loopback from
any existing interface? (Choose two.)
A.
B.
C.
D.
E.
F.

adding a static route for the VRF that points to the global route table
adding the loopback to the VRF
adding dynamic routing between the two routers and advertising the loopback
adding the IP address of the loopback to the export route targets for the VRF
adding a static route for the VRF that points to the loopback interface
adding all interfaces to the global and VRF routing tables

Answer: AB

QUESTION 138
Refer to the exhibit. After configuring GRE between two routers running OSPF that are connected
to each other via a WAN link, a network engineer notices that the two routers cannot establish the
GRE tunnel to begin the exchange of routing updates. What is the reason for this?

A. Either a firewall between the two routers or an ACL on the router is blocking IP protocol number
47.
B. Either a firewall between the two routers or an ACL on the router is blocking UDP 57.
C. Either a firewall between the two routers or an ACL on the router is blocking TCP 47.
D. Either a firewall between the two routers or an ACL on the router is blocking IP protocol number
57.
Answer: A

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82

It introduces multi-VRF and label-prone network segmentation. It requires and enhances the use of VRF-Lite. which two dynamic IPv6 addressing mechanisms could you use on end hosts to provide end-to-end connectivity? (Choose two. Get Latest & Actual 300-101 Exam's Question and Answers from exam. B.com ! If IPv6 is configured with default settings on all interfaces on the router. D. The router acts as an authoritative NTP clock with a priority number of 10. EUI-64 SLAAC DHCPv6 BOOTP Answer: AB QUESTION 140 Which PPP authentication method sends authentication information in cleartext? A. Answer: C QUESTION 142 Refer to the following configuration command. C. B.com 83 . The router acts as an authoritative NTP clock at stratum 10. C. router (config-line)# ntp master 10 Which statement about this command is true? A. It allows for traffic separation and improved network efficiency.) A. C. MS CHAP CDPCP CHAP PAP Answer: D QUESTION 141 What is the primary service that is provided when you implement Cisco Easy Virtual Network? A. B. D. The router acts as an authoritative NTP clock and allows only 10 NTP client connections.exam. http://www.QUESTION 139 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. D. B. It reduces the need for common services separation. C.

B. B. The 10.0. D. D.com 84 . http://www. B. resulting in a single GRE tunnel interface on the hub. Answer: B QUESTION 143 Which Cisco VPN technology can use multipoint tunnel.0. C. Which advertisement is installed in the routing table? A.0. Traffic from the 172.0.0/8 network will not be advertised by Router B because the network statement for the 10.exam.0/8 network is missing from RouterB.0/16 network will be blocked by the ACL.0. The router acts as an authoritative NTP clock for 10 minutes only. Which statement is true? A. RIP OSPF iBGP EIGRP Answer: D QUESTION 145 Refer to the exhibit. to support multiple connections from multiple spoke devices? A. DMVPN GETVPN Cisco Easy VPN FlexVPN Answer: A QUESTION 144 A router receives a routing advertisement for the same prefix and subnet from four different routing protocols.D. Get Latest & Actual 300-101 Exam's Question and Answers from exam.16. C.

router#show memory allocating-process table router#show memory summary router#show memory dead router#show memory events router#show memory processor statistics Answer: AB QUESTION 149 Refer to the exhibit.168.0. D. E.C. Router B will not advertise the 10. D.5. E. The 10. PMTUD MSS windowing TCP global synchronization Answer: A QUESTION 147 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. Consider the following output: hostname RouterB ! Get Latest & Actual 300-101 Exam's Question and Answers from exam.0/8 network because it is blocked by the ACL.0/24 network.exam.0/24 cannot successfully ping users on the 10. when packets on the interface are received and the interface is operational when packets on the interface are received and logging buffered is enabled when packets on the interface are received and forwarded to a configured syslog server when packets on the interface are received and the interface is shut down Answer: A QUESTION 148 Which two commands would be used to troubleshoot high memory usage for a process? (Choose two.168. B. In which situation is the debugging output generated? A.5.0.0.0/8 network.) A. C. E.0.0/8 network will not be in the routing table on RouterB. D. The DHCP client is unable to receive a DHCP address from the DHCP server.0.0/8 network can successfully ping users on the 192. http://www.0. B.com 85 . C. Users on the 10.0. D.0. C. Answer: E QUESTION 146 Which technology was originally developed for routers to handle fragmentation in the path between end points? A. but users on the 192. B.

Update: 30 seconds Expire: 180 seconds Flush: 240 seconds Update: 20 seconds Expire: 120 seconds Flush: 160 seconds Update: 10 seconds Expire: 60 seconds Flush: 80 seconds Update: 5 seconds Expire: 30 seconds Flush: 40 seconds Get Latest & Actual 300-101 Exam's Question and Answers from exam. D.000 bytes 16.1.0 interface serial 0/0 ip address 10.255.1 255.255.255.2 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.16.1.16. C.255.1 RouterB(config-if)# ip helper-address 255.1 RouterB(config-if)# ip helper-address 172.1. E.exam.000 bytes 24. D. B. C.1 255.1.000 bytes 62.255.255.31. C.0 10.000 bytes 32.1. RouterB(config-if)# ip helper-address 172. what is the bandwidth delay product? A.com 86 . B.255 Answer: A QUESTION 150 If the total bandwidth is 64 kbps and the RTT is 3 seconds. D.1.0 255.2 RouterB(config-if)# ip helper-address 172. B.16.31.1.255.1. 8.252 ! ip route 172. http://www.interface fastethernet 0/0 ip address 172.000 bytes Answer: C QUESTION 151 What are the default timers for RIPng? A.255.1.

B. Upon monitoring. E. B. D. C. D. C. http://www. D. It enables multicast distribution for VRF-Lite setups to enhance IGP routing protocol capabilities. They are also having latency issues communicating to the network drives of various departments. addressing information route types AS paths metrics Answer: A QUESTION 155 Various employees in the same department report to the network engineer about slowness in the network connectivity to the Internet. which feature must be used in conjunction with the newly created tracking object to manipulate the traffic flow as required? A. C. It extends the IP address to identify which VRF instance it belongs to. F. B. network outage network switching loop router configuration issue wrong proxy configured Answer: B Get Latest & Actual 300-101 Exam's Question and Answers from exam. Which option is the problem? A.Answer: A QUESTION 152 What is the purpose of the route-target command? A.com 87 . D. Answer: C QUESTION 153 A network engineer has configured a tracking object to monitor the reachability of IP SLA 1. It manages the import and export of routes between two or more VRF instances. the engineer finds traffic flood in the network. It enables multicast distribution for VRF-Lite setups to enhance EGP routing protocol capabilities. if the required matching is based on which criteria? A. C. In order to update the next hop for the interesting traffic. B. SNMP PBR IP SLA SAA ACLs IGP Answer: B QUESTION 154 A route map uses an ACL.exam.

This configuration is incorrect because the dialer interface number must be the same as the dialer pool number.QUESTION 156 Which type of handshake does CHAP authentication use to establish a PPP link? A. This configuration is incorrect because the MTU must match the ppp-max-payload that is defined. D. Multiple PPPoE clients can use the same dialer interface.com 88 . C. E. Answer: C QUESTION 159 Refer to the exhibit. D. A PPPoE session can be initiated only by the access concentrator. Which statement about the configuration is true? A. D. B.) A. C. C. one-way two-way three-way four-way Answer: C QUESTION 157 Which two authentication protocols does PPP support? (Choose two. Get Latest & Actual 300-101 Exam's Question and Answers from exam. http://www. This configuration is missing an IP address on the dialer interface. B. C. B. This configuration represents a complete PPPoE client configuration on an Ethernet connection. D. Multiple PPPoE clients can use the same dialer pool. A PPPoE session can be initiated only by the client. B.exam. WAP PAP CHAP EAP RADIUS Answer: BC QUESTION 158 Which statement is a restriction for PPPoE configuration? A.

SLAAC provides the ability to address a host based on a network prefix that is advertised from a local network router. B. C.com 89 . How is the prefix advertised? A.exam. traffic shaping IPsec VPN GRE VPN MPLS Answer: A QUESTION 161 On which two types of interface is Frame Relay switching supported? (Choose two. C. serial interfaces Ethernet interfaces fiber interfaces ISDN interfaces auxiliary interfaces Answer: AD QUESTION 162 In IPv6. Which option prevents routing updates from being sent to the access layer switches? Get Latest & Actual 300-101 Exam's Question and Answers from exam. B. D. D. Which technology must be configured to prevent remote sites from getting overwhelmed with traffic and prevent packet drops from the headquarters? A. C.Answer: D QUESTION 160 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. E.) A. http://www. B. D. routing table router advertisements routing protocol routing type Answer: B QUESTION 163 Refer to the exhibit.

com 90 .exam. 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 QUESTION 164 Refer to the exhibit. http://www. while still allowing routing update messages to flow to the Internet router and the distribution switches? Get Latest & Actual 300-101 Exam's Question and Answers from exam. 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. Which option prevents routing updates from being sent to the DHCP router. ALS1(config-router)# passive-interface default ALS2(config-router)# passive-interface default C. DWS1(config-router)# passive-interface default DWS2(config-router)# passive-interface default B.A.

Get Latest & Actual 300-101 Exam's Question and Answers from exam. 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. 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 B. By default. 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 QUESTION 165 A network engineer is considering enabling load balancing with EIGRP. 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. D. B. EIGRP allows a maximum of four paths across for load balancing traffic. Which consideration should be analyzed? A.exam.com 91 . By default. http://www. EIGRP unequal path load balancing can result in routing loops.A. C. EIGRP performs equal cost load balancing at least across four equal cost paths. EIGRP uses a default variance of 2 for load balancing.

D. Which option also is required on the tunnel interface before it is operational? A. E. The engineer has assigned an IPv4 address on the tunnel and sourced the tunnel from an Ethernet interface. B.Answer: D QUESTION 166 The OSPF database of a router shows LSA types 1. tunnel destination address keepalives IPv6 address tunnel protection Answer: A QUESTION 168 Which protocol is used in a DMVPN network to map physical IP addresses to logical IP addresses? A. B. stub area totally stubby area backbone area not-so-stubby area Answer: D QUESTION 167 An engineer is configuring a GRE tunnel interface in the default mode. and 7 only. 3.exam. Which type of area is this router connected to? A. D. BGP LLDP EIGRP NHRP Answer: D QUESTION 169 Which two routing protocols are supported by Easy Virtual Network? (Choose two.com 92 . C. D. B. C. C. RIPv2 OSPFv2 BGP EIGRP IS-IS Answer: BD QUESTION 170 Get Latest & Actual 300-101 Exam's Question and Answers from exam.) A. http://www. B. 2. C. D.

0/24 network to successfully enter router R. allow self ping to router allow default route allow based on ACL match source reachable via both Answer: D QUESTION 173 Refer to the exhibit.0.16. (config)#ip cef (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via rx allow-default Get Latest & Actual 300-101 Exam's Question and Answers from exam. RADIUS and TACACS+ allow accounting of commands. D. RADIUS and TACACS+ are client/server AAA protocols. TACACS+ separates authentication and authorization.0. while also limiting spoofed 10. Neither RADIUS nor TACACS+ allow for accounting of commands. B. C. Answer: D QUESTION 171 Which two statements about AAA implementation in a Cisco router are true? (Choose two. RADIUS and TACACS+ encrypt the entire body of the packet. B.Which statement is true? A.exam. and TACACS+ uses UDP. D.com 93 . Which option represents the minimal configuration that allows inbound traffic from the 172. E. B. C. http://www. RADIUS is more flexible than TACACS+ in router management. C.) A. RADIUS uses TCP. D. TACACS+ encrypts only the password portion of a packet. RADIUS encrypts the entire body of the packet.0/8 hosts that could enter router R? A.1. Answer: BD QUESTION 172 Which option is invalid when configuring Unicast Reverse Path Forwarding? A.

The client broadcasts NTP requests. (config)#ip cef (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via rx C. ip access-list extended 10 deny tcp host 10.10.10.10.1? A.10. The client creates a VPN tunnel to an NTP server. The client polls NTP servers for time.1 any eq 80 D. B.10. http://www. ip access-list extended 200 deny tcp host 10.10. (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via any Answer: A QUESTION 174 Which outbound access list. The client listens to NTP broadcasts. D. The client multicasts NTP requests. ip access-list extended 100 deny tcp host 10.com 94 . permits all traffic except for http traffic sourced from the workstation with IP address 10. applied to the WAN interface of a router.10.1 eq 80 any permit ip any any B. Answer: AC QUESTION 176 Refer to the exhibit. Which command allows hosts that are connected to FastEthernet0/2 to access the Internet? Get Latest & Actual 300-101 Exam's Question and Answers from exam. ip access-list extended NO_HTTP deny tcp host 10. C.) A.exam.1 any eq 80 permit ip any any C.10.B.10. E.1 any eq 80 permit ip any any Answer: D QUESTION 175 Which two statements indicate a valid association mode for NTP synchronization? (Choose two.10. (config)#no ip cef (config)#interface fa0/0 (config-if)#ip verify unicast source reachable-via rx D.

50 to access external websites using TCP port 8080.A.201. It allows external clients to connect to a web server hosted on 192. It represents an incorrect NAT configuration because it uses standard TCP ports. It allows host 192.0 overload ip nat inside source list 10 interface FastEthernet0/2 overload ip nat outside source list 10 interface FastEthernet0/2 overload Answer: A QUESTION 177 Which statement describes what this command accomplishes when inside and outside interfaces are correctly identified for NAT? ip nat inside source static tcp 192.1.168.10. B. C.com 95 . B.168.10.50. D.1.165.50 80 209.165. http://www. Answer: C QUESTION 178 Refer to the exhibit.1.225 10. Which technology can be employed to automatically detect a WAN primary link failure and failover to the secondary link? Get Latest & Actual 300-101 Exam's Question and Answers from exam.200.165.50. ip nat inside source list 10 interface FastEthernet0/1 overload ip nat outside source static 209.1.exam. It allows external clients coming from public IP 209. D.1 to connect to a web server at 192.168.201. C.1 8080 extendable A.168.

exam. CLI NetFlow built-in GUI syslog server interface web interface Answer: AB QUESTION 180 Drag and Drop Question Drag and drop the Cisco Express Forwarding adjacency types from the left to the correct type of processing on the right. D.) A. C. Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam. B.A. E. B. HSRP VRRP IP SLA multicast Answer: C QUESTION 179 In which two ways can NetFlow data be viewed? (Choose two. D.com 96 . http://www. C.

Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam.QUESTION 181 Drag and Drop Question Drag and drop the BGP states from the left to the matching definitions on the right.com 97 .exam. http://www.

QUESTION 182 Drag and Drop Question Drag and drop the IPv6 NAT characteristic from the left to the matching IPv6 NAT category on the right.com 98 . http://www. Answer: Get Latest & Actual 300-101 Exam's Question and Answers from exam.exam.

16.201.exam.) A. B. D.16. http://www.25 every 3 seconds using an ICMP echo packet via an ICMP echo probe. C.16.16. Which two commands accomplish this task? (Choose two.201. F.com 99 .25 source-interface FastEthernet 0/0 router(config-ip-sla-echo)#timeout 3 router(config-ip-sla)#icmp-jitter 172.25 interval 100 router(config-ip-sla-echo)#frequency 3 router(config-ip-sla)#udp-echo 172.25 source-port 23 router(config-ip-sla-echo)#threshold 3 Answer: AD Get Latest & Actual 300-101 Exam's Question and Answers from exam. E.201.QUESTION 183 An engineer is asked to monitor the availability of the next-hop IP address of 172. router(config-ip-sla)#icmp-echo 172.201.

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