CCNA ICND2 Study Guide. Lammle Todd

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      A. The global address is in the wrong subnet.

      B. The IPv6 default gateway has not been configured or received from the router.

      C. The link-local address has not been resolved so the host cannot communicate to the router.

      D. There are two IPv6 global addresses configured. One must be removed from the configuration.

      11. What command is used to view the IPv6-to-MAC-address resolution table on a Cisco router?

      A. show ip arp

      B. show ipv6 arp

      C. show ip neighbors

      D. show ipv6 neighbors

      E. show arp

      12. An IPv6 ARP entry is listed with a status of REACH. What can you conclude about the IPv6-to-MAC-address mapping?

      A. The interface has communicated with the neighbor address and the mapping is current.

      B. The interface has not communicated within the neighbor reachable time frame.

      C. The ARP entry has timed out.

      D. IPv6 can reach the neighbor address but the addresses has not yet been resolved.

      13. Serial0/1 goes down. How will EIGRP send packets to the 10.1.1.0 network?

      A. EIGRP will put the 10.1.1.0 network into active mode.

      B. EIGRP will drop all packets destined for 10.1.1.0.

      C. EIGRP will just keep sending packets out s0/0.

      D. EIGRP will use s0/2 as the successor and keep routing to 10.1.1.0.

      14. What command produced the following output?

      A. show ip protocols

      B. show ipv6 protocols

      C. show ip eigrp neighbors

      D. show ipv6 eigrp neighbors

      E. show ip eigrp topology

      F. show ipv6 eigrp topology

      15. You need to troubleshoot an adjacency between two EIGRP configured routers. What should you look for? (Choose four.)

      A. Verify the AS numbers.

      B. Verify that you have the proper interfaces enabled for EIGRP.

      C. Make sure there are no mismatched K values.

      D. Check your passive interface settings.

      E. Make sure your remote routers are not connected to the Internet.

      F. If authentication is configured, make sure all routers use different passwords.

      16. You have two OSPF directly configured routers that are not forming an adjacency. What should you check? (Choose three.)

      A. Process ID

      B. Hello and dead timers

      C. Link cost

      D. Area

      E. IP address/subnet mask

      17. When do two adjacent routers enter the 2WAY state?

      A. After both routers have received Hello information

      B. After they have exchanged topology databases

      C. When they connect only to a DR or BDR

      D. When they need to exchange RID information

      18. Which type of LSAs are generated by ABRs and referred to as summary link advertisements (SLAs)?

      A. Type 1

      B. Type 2

      C. Type 3

      D. Type 4

      E. Type 5

      19. Which of the following is not provided by the AH portion of IPsec?

      A. Integrity

      B. Confidentiality

      C. Authenticity

      D. Anti-replay

      20. Which statement about GRE is not true?

      A. GRE is stateless and has no flow control.

      B. GRE has security.

      C. GRE has additional overhead for tunneled packets, at least 24 bytes.

      D. GRE uses a protocol-type field in the GRE header so any layer 3 protocol can be used through the tunnel.

      21. Which of the following services provides the operating system and the network?

      A. IaaS

      B. PaaS

      C. SaaS

      D. None of the above

      1. B. To allow for the PVST+ to operate, there's a field inserted into the BPDU to accommodate the extended system ID so that PVST+ can have a root bridge configured on a per-STP instance. The extended system ID (VLAN ID) is a 12-bit field, and we can even see what this field is carrying via show spanning-tree command output. See Chapter 1 for more information.

      2. A. Cisco's EtherChannel can bundle up to eight ports between switches in order to provide resiliency and more bandwidth between switches. See Chapter 1 for more information.

      3. B, C, E. All the ports on both sides of every link must be configured exactly the same between switches or EtherChannel will not work. Speed, duplex, and allowed VLANs must match. See Chapter 1 for more information.

      4. A, B. Southbound APIs (or device-to-control-plane interfaces) are used for communication between the controllers and network devices, which puts these interfaces between the control and data planes. See Chapter 8 for more information.

      5. D. Class of Service (CoS) is a term to describe designated fields in a frame or packet header. How devices treat packets in your network depends on the field values. СКАЧАТЬ