An OSPF link can be in multiple states at any givenmoment（ie.Exstart,exchange,full). Which two IOS commands let you view the state of the link（）

A. Import policies are not possible.

B. Import policies only match on external routes.

C. Import policies only match on internal routes.

D. Import policies can cause inconsistent link state databases.

A. All OSPF routers in stubby areas can have type 3 LSAs in their database.

B. All OSPF routers in stubby areas can have type 7 LSAs in their database.

C. All OSPF routers in totally stubby areas can have type 3 LSAs in their database.

D. All OSPF routers in totally stubby areas can have type 7 LSAs in their database.

E. All OSPF routers in NSSA areas can have type 3 LSAs in their database.

F. All OSPF routers in NSSA areas can have type 7 LSAs in their database.

A. The exchange of advertisement is triggered by a change in the network.

B. All routers exchange routing tables with each other iIn a multipoint network.

C. Packets are routed based upon the shortest path to the destination.

D. Paths are chosen depending on the cost efficiency factor.

E. Every router in an OSPF area is capable of representing the entire network topology.

F. Only the designated router in an OSPF area can represent the entire network topology.

ut from Router R1？（）R1show ip ospf virtual - linksVirtual Link OSPF_VL0 to router 4.4.4.4 is upRun as demand circuitDoNotAge LSA alloweD.Transit area 1, via interface FastEthernet0/1, Cost of using 3

A. R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.

B. The ping 4.4.4.4 command on R1 must currently be successful.

C. R1‘s Fa0/0 OSPF cost is 3.

D. 4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.

A. The exchange of an advertisement is triggered by a change in the network.

B. All routers exchange routing tables with each other in a multipoint network.

C. Packets are routed based upon the shortest path to the destination.

D. Paths are chosen depending on the cost efficiency factor.

E. Every router in an OSPF area is capable of representing the entire network topology.

F. Only the designated router in an OSPF area can represent the entire network topology.

er R1 (RID 1.1.1.1). Which answer can be verified as definitely true based on this output？（）LS Type: Summary Links (AS Boundary Router)Link State ID: 9.9.9.9 (AS Boundary Router address)Advertising Router: 3.3.3.3LS Seq Number: 8000000DChecksum: 0xE43ALength: 28Network Mask: /0TOS: 0 Metric: 100

A. The output describes the contents of a Type 5 LSA

B. 3.3.3.3 identifies a ro uter as being the router performing redistribution

C. R1‘s metric for its best route to reach the router with RID 9.9.9.9 is 100

D. The router with RID 3.3.3.3‘s metric for its best route to reach the router with RID 9.9.9.9 is 100

like RIP, treats eaCh network as equals.The (71) of passing through eaCh network is the same;it is one (72) Count.So if a paCket passes through 10 network to reaCh the Destination, the total Cost is 10 hop Counts.Other protoCols, suCh as OSPF, allow the aDministrator to assign a Cost for passing through a network BaseD on the type of serviCe requireD.A (73) through a network Can have Different Costs(metriCs).For example, if maximum (74) is the DesireD type of serviCe, a satellite link has a lower metriC than a fiBer-optiC line.On the other hanD, if minimum (75) is the DesireD type of serviCe, a fiBer-optiC line has a lower metriC than a satellite line.OSPF allow eaCh router to have several routing taBle BaseD on the requireD type of serviCe.

（71）

A．numBer

B．ConneCtion

C．Diagram

D．Cost

l, like RIP, treats each network as equals. The （71） of passing through each network is the same; it is one （72） count. So if a packet passes through 10 network to reach the destination, the total cost is 10 hop counts. Other protocols, such as OSPF, allow the administrator to assign a cost for passing through a network based on the type of service required. A （73） through a network can have different costs (metrics). For example, if maximum （74） is the desired type of service, a satellite link has a lower metric than a fiber-optic line. On the other hand, if minimum （75） is the desired type of service, a fiber-optic line has a lower metric than a satellite line. OSPF allow each router to have several routing table based on the required type of service.

（71）

A. number

B. connection

C. diagram

D. cost

（72）

A. process

B. hop

C. route

D. flow

（73）

A. flow

B. window

C. route

D. cost

（74）

A. packet

B. throughput

C. error

D. number

（75）

A. delay

B. stream

C. packet

D. cost

A.

B.

C.

D.

A.Hello

B.Database Description packet

C.Link State Request Packet

D.Link State Update Packet