| 172.16.20.2 172.16.26.254 172.16.47.254 172.16.48.5 112. What are two reasons that will prevent two routers from forming an OSPFv2 adjacency? (Choose two.) mismatched subnet masks on the link interfaces a mismatched Cisco IOS version that is used use of private IP addresses on the link interfaces one router connecting to a FastEthernet port on the switch and the other connecting to a GigabitEthernet port mismatched OSPF Hello or Dead timers 113. Which three addresses could be used as the destination address for OSPFv3 messages? (Choose three.) FF02::5 FF02::6 FF02::A 2001:db8:cafe::1 FF02::1:2 FE80::1 114. Refer to the exhibit. What is the OSPF cost to reach the West LAN 172.16.2.0/24 from East? 65* 115. The network address 172.18.9.128 with netmask 255.255.255.128 is matched by which wildcard mask? Show
adjacency database* link-state database forwarding database routing table 2. Which OSPF component is identical in all routers in an OSPF area after convergence?adjacency database link-state database* routing table SPF tree 3. Which OPSF packet contains the different types of link-state advertisements?hello DBD LSR LSU* LSAck 4. What happens immediately after two OSPF routers have exchanged hello packets and have formed a neighbor adjacency?They exchange DBD packets in order to advertise parameters such as hello and dead intervals. They negotiate the election process if they are on a multiaccess network. They request more information about their databases. They exchange abbreviated lists of their LSDBs.* 5. What will an OSPF router prefer to use first as a router ID?any IP address that is configured using the router-id command* a loopback interface that is configured with the highest IP address on the router the highest active interface IP that is configured on the router the highest active interface that participates in the routing process because of a specifically configured network statement 6. What are the two purposes of an OSPF router ID? (Choose two.)to facilitate the establishment of network convergence to uniquely identify the router within the OSPF domain* to facilitate the transition of the OSPF neighbor state to Full to facilitate router participation in the election of the designated router* to enable the SPF algorithm to determine the lowest cost path to remote networks 7. By default, what is the OSPF cost for any link with a bandwidth of 100 Mb/s or greater?1* 100 10000 100000000 8. Which command should be used to check the OSPF process ID, the router ID, networks the router is advertising, the neighbors the router is receiving updates from, and the default administrative distance?show ip protocols* show ip ospf neighbor show ip ospf show ip ospf interface 9. What are two reasons that will prevent two routers from forming an OSPFv2 adjacency? (Choose two.)a mismatched Cisco IOS version that is used mismatched OSPF Hello or Dead timers* mismatched subnet masks on the link interfaces* use of private IP addresses on the link interfaces one router connecting to a FastEthernet port on the switch and the other connecting to a GigabitEthernet port 10. Which three addresses could be used as the destination address for OSPFv3 messages? (Choose three.)FE80::1* FF02::5* FF02::6* FF02::A FF02::1:2 2001:db8:cafe::1 11. A network administrator enters the command ipv6 router ospf 64 in global configuration mode. What is the result of this command?The router will be assigned an autonomous system number of 64. The router will be assigned a router ID of 64. The reference bandwidth will be set to 64 Mb/s. The OSPFv3 process will be assigned an ID of 64.* 12. When a network engineer is configuring OSPFv3 on a router, which command would the engineer issue immediately before configuring the router ID?ipv6 ospf 10 area 0 ipv6 router ospf 10* interface serial 0/0/1 clear ipv6 ospf process 13. Single area OSPFv3 has been enabled on a router via the ipv6 router ospf 20 command. Which command will enable this OSPFv3 process on an interface of that router?ipv6 ospf 0 area 0 ipv6 ospf 20 area 20 ipv6 ospf 0 area 20 ipv6 ospf 20 area 0* 14. What does a Cisco router use automatically to create link-local addresses on serial interfaces when OSPFv3 is implemented?the highest MAC address available on the router, the FE80::/10 prefix, and the EUI-48 process the FE80::/10 prefix and the EUI-48 process the MAC address of the serial interface, the FE80::/10 prefix, and the EUI-64 process an Ethernet interface MAC address available on the router, the FE80::/10 prefix, and the EUI-64 process* 15. Which command will verify that a router that is running OSPFv3 has formed an adjacency with other routers in its OSPF area?show running-configuration show ipv6 ospf neighbor* show ipv6 route ospf show ipv6 interface brief 16. Which command will provide information specific to OSPFv3 routes in the routing table?show ip route ospf show ip route show ipv6 route show ipv6 route ospf* 17. Match the OSPF state with the order in which it occurs. (Not all options are used.)Place the options in the following order: 18. Match each OSPF packet type to how it is used by a router. (Not all options are used.)establish and maintain adjacencies = hello packet advertise new information = link-state update packet compare local topology to that sent by another router = database description packet query another router for additional information = link-state request packet 19. By order of precedence, match the selection of router ID for an OSPF-enable router to the possible router ID options. (Not all option are used.)loopback interface address 10.1.1.1 = Third precedence Serial interface IP address 192.168.10.1 = Fourth precedence Configured router ID 1.1.1.1 = First precedence Loopback interface IP address 172.16.1.1 = Second precedence 20. Match the information to the command that is used to obtain the information. (Not all options are used.)show ip ospf neighbor = Neighbor ID of 3.3.3.3 show ip ospf = Routing Process “ospf 10” with ID 1.1.1.1 show ip protocols = Routing Protocol is “ospf 10” show interface serial 0/0/0 = BW 1544 Kbit/sec 21. Fill in the blank.OSPF uses “cost” as a metric. 22. Fill in the blank.The election of a DR and a BDR takes place on “multiaccess” networks, such as Ethernet networks. 23. Open the PT Activity. Perform the tasks in the activity instructions and then complete the task.What message is displayed on http://www.ciscoville.com?Finished! Completion!* Success! Converged! |
What are two reasons that will prevent two routers from forming an ospfv2 adjacency?
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