Open Shortest Path First | OCPF Solved MCQ

Open Shortest Path First Solved MCQ contain set of 10 MCQ questions for OCPF MCQ which will help you to clear beginner level quiz.



1. RouterA’s ethernet interface is configured using the network type BCAST and the interface is up/up. There are no other routers on that network segment.  RouterA has the DR role for that segment.  What LSA(s) will the router ​send to describe this ethernet segment?

1. Type-1 Router LSA with Transit Link – As all networks are described using Type-1 Tranit link if they are configured as BCAST.
2. Type-2 Network LSA. Because the advertising router is the designated router (DR) for that network segment.
3. Type-1 Router LSA with Stub-Link The router won’t send a Network LSA unless the interface is a DR and the router forms an adjacency on that interface.
4. Type-1 Router LSA with Transit Link AND a Type-2 Network LSA. Because the advertising router is the designated router (DR) for that network segment and the interface is BCAST.​

 
2.What is the first LSA sequence number OSPF chooses on startup?

1. 0x00000000
2. 0x00000001
3. 0x80000000
4. 0x80000001​

 
3. Is OSPF a link-state or distance vector protocol?
1. Always link state
2. Always distance vector
 3. Both. It link-state within each area, and distance vector between area’s​
 
4.When does the ABR originate a type-4 summary on a Cisco router?

1. Never, only the ASBR generates a type-4 LSA
2. The ABR generates a type-4 only if it receives a type-4 from the ASBR?
3. The moment you add ‘redistribute’ command to ASBR
4. The first time the ABR sees the first Type-5 prefix arriving from the ASBR.​

 
5.What is the numerical value of LSInfinity?

1. 0 (all zeros)
2. 65535
3. 16777342
4. Both 65535 and 16777342

 
6.With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?
 

1. Point-to-point
2. Backbone area 0
3. Broadcast multi-access
4. Non-broadcast multi-access​

 
7.Which of the following describe the process identifier that is used to run OSPF on a router?

1. It is locally significant.
2. It is globally significant.
3. It is needed to identify a unique instance of an OSPF database.
4. It is an optional parameter required only if multiple OSPF processes are running on the router.

 
A. 1, 2 and 4
    B. 1 and 3
C. 3 and 4
D. All of the above
​
8.Which of the following are true regarding OSPF areas?​

1. You must have separate loopback interfaces configured in each area.
2. The numbers you can assign an area go up to 65,535.
3. The backbone area is also called area 0.
4. If your design is hierarchical, then you don’t need multiple areas.
5. All areas must connect to area 0.
   Options

1. 1 only
2. 1 and 2 only
3. 3 and 4 only
4. 3, 4 and 5

 
9.Which two of the following commands will place network 10.2.3.0/24 into area 0?
1. router eigrp 10
2. router ospf 10
3. network 10.0.0.0
4. network 10.2.3.0 0.0.0.255 area0
5. network 10.2.3.0 0.0.0.255 area 0
A.   1 and 4
B.   2, 4, and 5
C.   2 and 5
D.   3 and 4​
 
10.You get a call from a network administrator who tells you that he typed the following into his router:
 
Router(config)#router ospf 1
Router(config-router)#network 10.0.0.0 255.0.0.0 area 0
He tells you he still can’t see any routes in the routing table. What configuration error did the administrator make?
OPTION
A. The wildcard mask is incorrect.
B. The OSPF area is wrong.
C. The OSPF Process ID is incorrect.
D. The AS configuration is wrong.​