What type of router cannot exist within a stub area？（）A、 ABRB、 ASBRC、 internal routerD、 non-backbone router

A. ABR

B. ASBR

C. internal router

D. backbone router

Refer to the exhibit. OSPF is configured on all routers in the network. Area 5 is configured as an NSSA areA. The RIPv2 routes are redistributed into the OSPF domain on router R5. What two types of LSAs will be originated by router R5?（）

A. type 1 Router LSA

B. type 2 Network LSA

C. type 3 Network Summary LSA

D. type 4 ASBR Summary LSA

E. type 5 AS External LSA

F. type 7 NSSA External LSA

An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）

A. stub area

B. transit area

C. border area

D. not-so-stubby area

You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）

A. Internal routers within the backbone area (area 0)

B. Internal routers within the NSSAs

C. Internal routers within the stubby areas

D. ASBRs

E. ABRs

F. DRs and BDRs

A. Areas introduce a boundary on the link - state updates.

B. Areas are logical definitions specific to any given router.

C. All routers within an area have the exact link - state database.

D. The calculation of the Dijkstra algorithm on a router is limited to changes within an area.

E. The area designated router will always have a priority of 0.

A. to aggregate routes learned from the ABR

B. to lower the cost of routes advertised by the ABR

C. to connect a non-contiguous area to the backbone

D. to decrease the size of the link-state database in that area

A. area 0 stub o n routers R4 and R5

B. area 5 stub on routers R4 and R5

C. area 5 stub no - summary on routers R4 and R5

D. area 0 stub no - summary on router R4 and area 5 stub no - summary on router R5

E. area 5 stub no - summary on router R4 and area 5 stub on router R5

A.A

B.B

C.C

D.D

Refer to the exhibit. Router C was configured so that it could form an adja cency with three OSPF neighbors, one connected to each of its three physical interfaces. Which statement is correct about router C?（）

A. It is configured and functioning correctly as an OSPF internal router.

B. It is configured and functioning correc tly as an ABR attached to stub area 4.

C. It is configured and functioning correctly as an ASBR attached to external area 4.

D. It is configured and functioning correctly as an ABR attached to totally stubby area 4.

E. It is not configured correctly to function as specified.

A.The router is in area 49.0001.0002

B.The router acts as a Level 1 - 2 router

C.CLNS routing is enable d for the router

D.The router has a system ID of 0003.0004

E.The interfaces have a functional IS - IS configuration

F.The network service access point selector (NSEL) byte has a value of 0