ccna2 chapter 8

Open the PT Activity. Perform the tasks in the activity instructions and then complete the task. What message is displayed on www.ciscoville.com? • Finished! • Completion! • Success! • Converged!

Completion!

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 16.

FE80::1 • FF02::5 • FF02::6

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 run a new DR/BDR election. • SPF will run and determine which neighbor router is "down". • A new dead interval timer of 4 times the hello interval will start. • OSPF will remove that neighbor from the router link-state database. 2.

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

Refer to the exhibit. A network administrator issued the command show ip ospf interface on the router R2. What conclusion can be drawn? CCNA2 Chapter 8 v5.03 001 • R2 is connecting to a point-to-point network. • R2 has not formed an adjacency with any other router. • R2 is configured with the OSPF router-id command. • R2 is not configured with default Hello and Dead timer values. 13.

R2 has not formed an adjacency with any other router.

A network administrator enters the command ipv6 router ospf 64in 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. 18.

The OSPFv3 process will be assigned an ID of 64.

Which three statements describe the similarities between OSPFv2 and OSPFv3? (Choose three.) • They both are link-state protocols. • They both use the global address as the source address when sending OSPF messages. • They both share the concept of multiple areas. • They both support IPsec for authentication. • They both use the same DR/BDR election process. • They both have unicast routing enabled by default. 3.

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

What is used to create the OSPF neighbor table? • adjacency database • link-state database • forwarding database • routing table 6.

adjacency database

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 17.

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? • metric calculation • hello mechanism • OSPF packet types • authentication • election process 15.

authentication

Fill in the blank. OSPF uses ________ as a metric. 24.

cost

What is the first criterion used by OPSF routers to elect a DR? • highest priority • highest IP address • highest router ID • highest MAC address 10.

highest priority

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 19.

ipv6 ospf 20 area 0

Which OSPF component is identical in all routers in an OSPF area after convergence? • adjacency database • link-state database • routing table • SPF tree 4.

link-state database

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 12.

mismatched OSPF Hello or Dead timers • 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. ______________ 23.

multiaccess

What command would be used to determine if a routing protocol-initiated relationship had been made with an adjacent router? • ping • show ip protocols • show ip ospf neighbor • show ip interface brief 14.

show ip ospf neighbor

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 20.

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 ___________________ 22.

show ipv6 protocols

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 21.

show ipv6 route ospf

What is a function of OSPF hello packets? • to send specifically requested link-state records • to discover neighbors and build adjacencies between them • to ensure database synchronization between routers • to request specific link-state records from neighbor routers 7.

to discover neighbors and build adjacencies between them

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 9.

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

Which wildcard mask would be used to advertise the 192.168.5.96/27 network as part of an OSPF configuration? • 0.0.0.32 • 0.0.0.31 • 255.255.255.224 • 255.255.255.223 11.

• 0.0.0.31

Which three statements describe features of the OSPF topology table? (Choose three.) • It is a link-state database that represents the network topology. • Its contents are the result of running the SPF algorithm. • When converged, all routers in an area have identical topology tables. • The topology table contains feasible successor routes. • The table can be viewed via the show ip ospf database command. • After convergence, the table only contains the lowest cost route entries for all known networks. 5.

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

Which OPSF packet contains the different types of link-state advertisements? • hello • DBD • LSR • LSU • LSAck 8.

• LSU