Chap 8 exam

A router is participating in an OSPFv2 domain. What will always happen if the dead interval expires before the router receives a hello packet from an adjacent DROTHER OSPF router?

OSPF will remove that neighbor from the router link-state database.

What is a function of OSPF hello packets?

to discover neighbors and build adjacencies between them

Which three addresses could be used as the destination address for OSPFv3 messages? (Choose three.)

FF02::5, FF02::6 AND FE80::1

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 20 AREA 0

Which OSPF component is identical in all routers in an OSPF area after convergence?

LINK-STATE DATABASE

Which OPSF packet contains the different types of link-state advertisements?

LSU

What command would be used to determine if a routing protocol-initiated relationship had been made with an adjacent router?

SHOW IP OSPF NEIGHBOR

A network administrator enters the command ipv6 router ospf 64 in global configuration mode. What is the result of this command?

The OSPFv3 process will be assigned an ID of 64.

Which three statements describe the similarities between OSPFv2 and OSPFv3?

They both are link-state protocols, They both share the concept of multiple areas and They both use the same DR/BDR election process.

Which three statements describe features of the OSPF topology table? (Choose three.)

When converged, all routers in an area have identical topology table, The table can be viewed via the show ip ospf database command. and It is a link-state database that represents the network topology.

What is used to create the OSPF neighbor table?

adjacency database

What does a Cisco router use automatically to create link-local addresses on serial interfaces when OSPFv3 is implemented?

an Ethernet interface MAC address available on the router, the FE80::/10 prefix, and the EUI-64 process

Which OSPFv3 function works differently from OSPFv2?

authentication

What is the first criterion used by OPSF routers to elect a DR?

highest priority

What are two reasons that will prevent two routers from forming an OSPFv2 adjacency? (Choose two.)

mismatched OSPF Hello or Dead timers AND mismatched subnet masks on the link interfaces

Fill in the blank. The election of a DR and a BDR takes place on ? networks, such as Ethernet networks.

multiaccess

Which command will verify that a router that is running OSPFv3 has formed an adjacency with other routers in its OSPF area?

show ipv6 ospf neighbor

Fill in the blank. Do not use abbreviations. To quickly verify OSPFv3 configuration information including the OSPF process ID, the router ID, and the interfaces enabled for OSPFv3, you need to issue the command

show ipv6 protocols

Which command will provide information specific to OSPFv3 routes in the routing table?

show ipv6 route ospf

What are the two purposes of an OSPF router ID? (Choose two.)

to uniquely identify the router within the OSPF domain and to facilitate router participation in the election of the designated router