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- 1. Multiple Choice
With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?
Point-to-point
Backbone area 0
Broadcast multi-access
Non-broadcast multi-access
- 2. Multiple Choice
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.
1, 2 and 4
1 and 3
3 and 5
All of the above
- 3. Multiple Choice
What is the administrative distance of OSPF?
90
100
110
120
- 4. Multiple Choice
Which of the following are true regarding OSPF areas?
- You must have separate loopback interfaces configured in each area.
- 2. The numbers you can assign an area go up to 65,535.
- The backbone area is also called area 0.
- If your design is hierarchical, then you don't need multiple areas.
- All areas must connect to area 0.
1 only
1 and 2 only
3 and 4 only
3, 4 and 5
- 5. Multiple Choice
What are reasons for creating OSPF in a hierarchical design?
- To decrease routing overhead
- To speed up convergence
- To confine network instability to single areas of the network
- To make configuring OSPF easier
1, 2 and 3
3 only
3 and 4
2, 3 and 4
- 6. Multiple Choice
Which two of the following commands will place network 10.2.3.0/24 into area 0?
- router eigrp 10
- router ospf 10
- network 10.0.0.0
- network 10.2.3.0 0.0.0.255 area0
- network 10.2.3.0 0.0.0.255 area 0
1 and 4
2, 4, and 5
2 and 5
3 and 4
- 7. Multiple Choice
If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?
The lowest IP address of any physical interface
The highest IP address of any physical interface
The lowest IP address of any logical interface
The highest IP address of any logical interface
- 8. Multiple Choice
Which of the following protocols support VLSM, summarization, and discontiguous networking?
- RIPv1
- IGRP
- EIGRP
- OSPF
- BGP
- RIPv2
1 and 4
2 and 5
3, 4 and 6
All of the above
- 9. Multiple Choice
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?
The wildcard mask is incorrect.
The OSPF area is wrong.
The OSPF Process ID is incorrect.
The AS configuration is wrong.
- 10. Multiple Choice
Which of the following network types have a designated router and a backup designated router assigned?
- Broadcast
- Point-to-point
- NBMA
- NBMA point-to-point
1, 2 and 3
1 and 3
3 and 4
All of the above
- 11. Multiple Choice
What protocol does OSPF use?
TCP number 89
UDP number 88
UDP number 89
IP number 89
- 12. Multiple Choice
How does OSPF determine whether other Link State routers are operating on the interfaces as well?
By sending Hello packets.
By sending DBD packets
By receiving LSDB
By sending LSAs
- 13. Multiple Choice
OSPF utilises IP Multicast when sending and receiving updates on Multi-Access networks, such as Ethernet. True or false?
True
False
- 14. Multiple Choice
OSPF is a hierarchical routing protocol that logically divides the network into subdomains referred to as _____
Broadcast Domain
VLAN
Areas
Loopbacks
- 15. Multiple Choice
When determining the OSPF router ID, Cisco IOS selects the lowest IP address of the configured Loopback interfaces. True or false?
True
False
- 16. Multiple Choice
What command can you use to assign an interface to OSPF Area 2 (interface level command)?
ip area 2 ospf <id>
ip ospf <id> area 2
area 2
network <n/w id> <w.c.m> area 2
- 17. Multiple Choice
_______ can be described as interfaces over which no routing updates are sent.
active
priority 0
split horizon
passive
- 18. Multiple Choice
Both OSPFv2 and OSPFv3 can run on the same router. True or false?
True
False
- 19. Multiple Choice
OSPFv2 and OSPFv3 use different LSA flooding and aging mechanisms. True or false?
True
False
- 20. Multiple Choice
Which is the equivalent of 224.0.0.5 in the IPv6 world?
FF02::5
FF00::5
FF::5
FFFF::05
- 21. Multiple Choice
Which command would you use to enable the OSPFv3 routing protocol?
ipv6 router ospf <id>
router ospf <id> v3
router ospf <id> ipv6
ospf v3 enable
- 22. Multiple Choice
A significant difference between OSPFv2 and OSPFv3 is that the OSPFv3 Hello packet now contains no address information at all but includes an interface ID, which the originating router has assigned to uniquely identify its interface to the link. True or false?
True
False
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