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CCNAS FINAL 100%

1 Which Cisco IOS configuration option instructs the IPS to compile a signature category named ios_ips into memory and use it to scan traffic? R1(config)# ip ips signature-category R1(config-ips-category)# category all R1(config-ips-category-action)# retired false R1(config)# ip ips signature-category R1(config-ips-category)# category ios_ips basic R1(config-ips-category-action)# retired false R1(config)# ip ips signature-category R1(config-ips-category)# category all R1(config-ips-category-action)# enabled true R1(config)# ip ips signature-category R1(config-ips-category)# category ios_ips basic R1(config-ips-category-action)# enabled true 2

Refer to the exhibit. An administrator has configured router R1 as indicated. However, SDEE messages fail to log. Which solution corrects this problem? Issue the logging on command in global configuration. Issue the ip ips notify sdee command in global configuration. Issue the ip audit notify log command in global configuration. Issue the clear ip ips sdee events command to clear the SDEE buffer.

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Which three principles are enabled by a Cisco Self-Defending Network? (Choose three.) adaptability collaboration insulation integration mitigation scalability 4What are two disadvantages of using network IPS? (Choose two.) Network IPS has a difficult time reconstructing fragmented traffic to determine if an attack was successful. Network IPS is incapable of examining encrypted traffic. Network IPS is operating system-dependent and must be customized for each platform.

100 port 4300 and destined to host 192.0 0.1.0. 5 Which access list statement permits HTTP traffic that is sourced from host 10.0.0 0.0.0.255 eq 4300 192.1.129. Choose Additional Tasks > Router Access > AAA to generate the RSA keys.0.255 eq www 192.0.0.30. 8 . Choose Additional Tasks > Router Access > VTY to specify SSH as the input and output protocol.0 eq www access-list 101 permit tcp 10.0.0.255. which two steps are required? (Choose two.0.168.30. Choose Additional Tasks > Router Access > Management Access to specify SSH as the input and output protocol. When configuring SSH on a router using SDM from the Configure menu.15 eq www access-list 101 permit tcp host 192.255.0 0.30.255 eq 4300 6Which type of SDM rule is created to govern the traffic that can enter and leave the network based on protocol and port number? NAC rule NAT rule IPsec rule access rule 7 Refer to the exhibit.128.1.30.1.0. Choose Additional Tasks > Router Properties > Netflow to generate the RSA keys.0.1.0 0.168.0 0.0 eq 80 10. Network IPS sensors are difficult to deploy when new networks are added.10 0.168.10? access-list 101 permit tcp any eq 4300 access-list 101 permit tcp 192.10 eq 80 10.168.168. Choose Additional Tasks > Router Properties > Logging to specify SSH as the input and output protocol.10 0.Network IPS is unable to provide a clear indication of the extent to which the network is being attacked.129.30.) Choose Additional Tasks > Router Access > SSH to generate the RSA keys.0.1.255 access-list 101 permit tcp 10.

) Port Fa0/5 storm control for broadcasts will be activated if traffic exceeds 80.000.1. During the quiet mode. an administrator can log in from host 172. Port Fa0/6 storm control for multicasts will be activated if traffic exceeds 2.16. 9 Refer to the exhibit.16. During the quiet mode.000.0/24.000 packets per second. Port Fa0/5 storm control for broadcasts and multicasts will be activated if traffic exceeds 80. Port Fa0/5 storm control for multicasts will be activated if traffic exceeds 80. Subsequent console login attempts are blocked for 60 seconds.2.000 packets per second.1 percent of 2. A message is generated indicating the username and source IP address of the user. Port Fa0/6 storm control for multicasts and broadcasts will be activated if traffic exceeds 2. No user can log in virtually from any host for 60 seconds.) Subsequent virtual login attempts from the user are blocked for 60 seconds.1 percent of the total bandwidth. Which three things occur if a user attempts to log in four times within 10 seconds using an incorrect password? (Choose three.000.1 percent of the total bandwidth.1.Refer to the exhibit. Which two statements are correct regarding the configuration on switch S1? (Choose two. 10Which type of Layer 2 attack makes a host appear as the root bridge for a LAN? LAN storm MAC address spoofing MAC address table overflow STP manipulation VLAN attack .000 packets per second. an administrator can virtually log in from any host on network 172.

Which privilege command is used to create this custom account? privilege exec level 0 privilege exec level 1 privilege exec level 2 privilege exec level 15 16 . or SSL. Attach all network devices to the same management network. SSH. Implement separate network segments for the production network and the management network. Use IPSec. Deploy a terminal server with console connections to each network device. 14Which three commands are required to configure SSH on a Cisco router? (Choose three. Which type of VPN allows these workers to securely access all of the client/server applications of the organization? clientless SSL VPN remote-access IPsec VPN site-to-site IPsec VPN HTTPS-enabled SSL VPN 13 Which two guidelines relate to in-band network management? (Choose two. 12An organization has mobile workers who use corporate-owned laptops at customer sites to view inventory and place orders.) ip domain-namename in global configuration mode transport input ssh on a vty line no ip domain-lookup in global configuration mode passwordpassword on a vty line service password-encryption in global configuration mode crypto key generate rsa in global configuration mode 15 An administrator needs to create a user account with custom access to most privileged EXEC commands.11 What occurs after RSA keys are generated on a Cisco router to prepare for secure device management? All vty ports are automatically configured for SSH to provide secure management. The keys must be zeroized to reset secure shell before configuring other parameters. The general-purpose key size must be specified for authentication with the crypto key generate rsa general-keys mod command. The generated keys can be used by SSH.) Apply in-band management only to devices that must be managed on the production network.

What happens to traffic leaving interface serial 0/0/0 that does not match the configured ACL statements? The resulting action is determined by the destination IP address. An administrator has configured a standard ACL on R1 and applied it to interface serial 0/0/0 in the outbound direction. What information can be obtained from the AAA configuration statements? The authentication method list used for Telnet is named ACCESS. 17Which statement describes configuring ACLs to control Telnet traffic destined to the router itself? The ACL must be applied to each vty line individually. 18 Which three statements describe SSL-based VPNs? (Choose three. The authentication process uses hashing technologies.Refer to the exhibit. The source IP address is checked and. The ACL should be applied to all vty lines in the in direction to prevent an unwanted user from connecting to an unsecured port. Symmetric algorithms are used for bulk encryption. Special-purpose client software is required on the client machine. It is impossible to configure SSL and IPsec VPNs concurrently on the same router. The traffic is dropped. The application programming interface is used to extensively modify the SSL client software. 19 Refer to the exhibit. The resulting action is determined by the destination IP address and port number. The primary restriction of SSL VPNs is that they are currently supported only in hardware.) Asymmetric algorithms are used for authentication and key exchange. if a match is not found. Apply the ACL to the vty lines without the in or out option required when applying ACLs to interfaces. . traffic is routed out interface serial 0/0/1. The ACL is applied to the Telnet port with the ip access-group command.

If the TACACS+ AAA server is not available. no users can establish a Telnet session with the router. 22 Which three OSI layers can be filtered by a stateful firewall? (Choose three.) Layer 2 Layer 3 Layer 4 . and Response System 21 Refer to the exhibit. The client is authenticating using the RADIUS protocol. The client is authenticating using the TACACS+ protocol. centrally managed IPS solutions? (Choose two. Which AAA function and protocol is in use in the network? The client is authorizing commands using the TACACS+ protocol. Analysis. The local database is checked first when authenticating console and Telnet access to the router. If the TACACS+ AAA server is not available. 20 Which two Cisco IPS management and monitoring tools are examples of GUI-based. console access to the router can be authenticated using the local database.The authentication method list used by the console port is named ACCESS. The client is authorizing commands using the RADIUS protocol.) Cisco Adaptive Security Device Manager Cisco IPS Device Manager Cisco Router and Security Device Manager Cisco Security Manager Cisco Security Monitoring.

which two actions will the signature take if an attack is detected? (Choose two. Generate an alarm message that can be sent to a syslog server.) Reset the TCP connection to terminate the TCP flow. The wizard is enabled using the Intrusion Prevention task.Layer 5 Layer 6 Layer 7 23 Refer to the exhibit.) switchport mode access switchport mode trunk switchport port-security switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security mac-addressmac-address 25Which statement describes the SDM Security Audit wizard? After the wizard identifies the vulnerabilities. The wizard is based on the Cisco IOS AutoSecure feature. 24 Which three switch security commands are required to enable port security on a port so that it will dynamically learn a single MAC address and disable the port if a host with any other MAC address is connected? (Choose three. the SDM One-Step Lockdown feature must be used to make all security-related configuration changes. Drop the packet and all future packets from this TCP flow. it automatically makes all security-related configuration changes. After the wizard identifies the vulnerabilities. Create an ACL that denies traffic from the attacker IP address. . Drop the packet and permit remaining packets from this TCP flow. Based on the SDM screen shown. The wizard autosenses the inside trusted and outside untrusted interfaces to determine possible security problems that might exist.

.26 Which component of AAA is used to determine which resources a user can access and which operations the user is allowed to perform? auditing accounting authorization authentication 27Which two protocols allow SDM to gather IPS alerts from a Cisco ISR router? (Choose two. Which AAA command logs the activity of a PPP session? aaa accounting connection start-stop group radius aaa accounting connection start-stop group tacacs+ aaa accounting exec start-stop group radius aaa accounting exec start-stop group tacacs+ aaa accounting network start-stop group radius aaa accounting network start-stop group tacacs+ 29What is a feature of the TACACS+ protocol? It combines authentication and authorization as one process. It utilizes UDP to provide more efficient packet transfer. It hides passwords during transmission using PAP and sends the rest of the packet in plaintext.) FTP HTTPS SDEE SSH Syslog TFTP 28 Refer to the exhibit. It encrypts the entire body of the packet for more secure communications.

Which interface configuration completes the CBAC configuration on router R1? R1(config)# interface fa0/0 R1(config-if)# ip inspect INSIDE in R1(config-if)# ip access-group OUTBOUND in R1(config)# interface fa0/1 R1(config-if)# ip inspect INSIDE in R1(config-if)# ip access-group OUTBOUND in R1(config)# interface fa0/1 R1(config-if)# ip inspect OUTBOUND in R1(config-if)# ip access-group INSIDE out R1(config)# interface fa0/0 R1(config-if)# ip inspect OUTBOUND in R1(config-if)# ip access-group INSIDE in R1(config)# interface fa0/1 R1(config-if)# ip inspect OUTBOUND in R1(config-if)# ip access-group INSIDE in 31 Refer to the exhibit. Which Cisco IOS security feature is implemented on router R2? CBAC firewall reflexive ACL firewall zone-based policy firewall AAA access control firewall .30 Refer to the exhibit.

If traffic is to flow between all interfaces in a router. each interface must be a member of a zone. Based on the SDM screen shown. Interfaces can be assigned to a zone before the zone is created. 35 Refer to the exhibit. and drop options can only be applied between two zones. a policy allowing or inspecting traffic must be configured between that zone and any other zone. Traffic is implicitly prevented from flowing by default among interfaces that are members of the same zone. which two conclusions can be drawn about the IKE policy being configured? (Choose two.32Which Cisco IOS privileged EXEC command can be used to verify that the Cisco IOS image and configuration files have been properly backed up and secured? Router# dir Router# show archive Router# show secure bootset Router# show flash 33 Which device supports the use of SPAN to enable monitoring of malicious activity? Cisco NAC Cisco IronPort Cisco Security Agent Cisco Catalyst switch 34Which three statements describe zone-based policy firewall rules that govern interface behavior and the traffic moving between zone member interfaces? (Choose three. . To permit traffic to and from a zone member interface.) It will use digital certificates for authentication. inspect.) An interface can be assigned to multiple security zones. Pass.

Traffic must match according to an exclusive disjunction criteria. It will use a very strong encryption algorithm. It uses TCP port 50 to exchange IKE information between the security gateways. A software tool floods a switch with frames containing randomly generated source and destination MAC and IP addresses. Frames flood the LAN. creating excessive traffic and degrading network performance.) superuser view root view superview CLI view admin view config view 39 Which statement describes a MAC address table overflow attack? An attacker alters the MAC address in a frame to match the address of a target host. The attacking host broadcasts STP configuration and topology change BPDUs to force spanning-tree recalculations. Traffic must match at least one of the match criteria statements. It is being created using the SDM VPN Quick Setup Wizard. 40When configuring a class map for zone-based policy firewall. how are the match criteria applied when using the match-all parameter? Traffic must match all of the match criteria specified in the statement.It will use a predefined key for authentication. 38Which three types of views are available when configuring the Role-Based CLI Access feature? (Choose three. 36The use of 3DES within the IPsec framework is an example of which of the five IPsec building blocks? authentication confidentiality Diffie-Hellman integrity nonrepudiation 37 Which statement describes the operation of the IKE protocol? It uses IPsec to establish the key exchange process. It calculates shared keys based on the exchange of a series of data packets. . It uses sophisticated hashing algorithms to transmit keys directly across a network. It will be the default policy with the highest priority. Traffic must match the first criteria in the statement.

The Cisco IOS image file is hidden and cannot be copied. The copy tftp flash command was issued on R1.) There is no access control to specific interfaces on a router.41 Which three statements describe limitations in using privilege levels for assigning command authorization? (Choose three. Creating a user account that needs access to most but not all commands can be a tedious process. whether they are used or not. The Cisco IOS image filename will be listed when the show flash command is issued on R1. Network-based IPS is better suited for inspection of SSL and TLS encrypted data flows. 43 Refer to the exhibit. A copy of the router configuration file has been made. Based on the output from the show secure bootset command on router R1. Host-based IPS can work in promiscuous mode or inline mode. Views are required to define the CLI commands that each user can access. It is required that all 16 privilege levels be defined. or deleted. Network-based IPS provides better protection against OS kernel-level attacks on hosts and servers. The secure boot-config command was issued on R1. modified.) A copy of the Cisco IOS image file has been made. The root user must be assigned to each privilege level defined. 42What is an important difference between network-based and host-based intrusion prevention? Host-based IPS is more scalable than network-based IPS. . which three conclusions can be drawn regarding Cisco IOS Resilience? (Choose three. Network-based IPS can provide protection to hosts without the need of installing specialized software on each one. Commands set on a higher privilege level are not available for lower privileged users.

46 Which two statements match a type of attack with an appropriate example? (Choose two. To conduct an access attack.1. Based on the SDM NTP Server Details screen.) NTPv1 is being configured. which two conclusions can be drawn from the information entered and check boxes checked? (Choose two.44Which element of the Cisco Threat Control and Containment solution defends against attempts to attack servers by exploiting application and operating system vulnerabilities? threat control for email threat control for endpoints threat control for infrastructure threat control for systems 45 Refer to the exhibit.1. To conduct a reconnaissance attack. NTP messages will be sent and received on interface Serial0/0/0 for this router. an attacker creates a TCP SYN flood causing the server to spawn many half-open connections and become unresponsive.1. To conduct a reconnaissance attack. an attacker initiates a smurf attack by sending a large number of ICMP requests to directed broadcast addresses. To conduct a DoS attack.2. an attacker initiates a ping of death attack to a targeted server. an attacker uses Wireshark to capture interesting network traffic.) To conduct an access attack.1. . an attacker uses L0phtCrack to obtain a Windows server password. The IP address of the NTP server is 10. an attacker uses handler systems and zombies to obtain a Windows server password.2. The IP address of the NTP client is 10. To conduct a DoS attack. NTP routing updates will be sent and received on interface Serial0/0/0 of the NTP server.

) Place generic ACL entries at the top of the ACL. Router-generated packets pass through ACLs on the router without filtering. Place more specific ACL entries at the top of the ACL. Use SSH to access syslog information. Synchronize clocks on all network devices with a protocol such as Network Time Protocol. An access list applied to any interface without a configured ACL allows all traffic to pass.47The use of which two options are required for IPsec operation? (Choose two. . Log all messages to the system buffer so that they can be displayed when accessing the router.) authenticates the source authenticates the destination guarantees data has not changed in transit provides nonrepudiation of transactions provides nonrepudiation using HMAC functions provides confidentiality of digitally signed data 49Which three statements should be considered when applying ACLs to a Cisco router? (Choose three. A maximum of three IP access lists can be assigned to an interface per direction (in or out). ACLs always search for the most specific entry before taking any filtering action.) AH protocols for encryption and authentication Diffie-Hellman to establish a shared-secret key IKE to negotiate the SA PKI for pre-shared-key authentication SHA for encryption 48 Which three security services are provided by digital signatures? (Choose three. 50 Which consideration is important when implementing syslog in a network? Enable the highest level of syslog available to ensure logging of all possible event messages.