CCNA Practice Quiz OSPF v2

1. The acronym for OSPF is _______.

1. Open Software Path First
2. Open Shortest Path First
3. Open Shortcut Protocol First
4. Open Software Protocol Field

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2. Which of the following algorithm is used by OSPF to determine the best path from source to destination?

1. Bellmon Ford algorithm
2. Diffusing update algorithm
3. Dijkstra’s algorithm
4. All of the above

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3. Which of the following parameters are compulsory to configure OSPF v2 on an active router interface? Choose any two.

1. OSPF md5 authentication keys
2. OSPF stub flag
3. OSPF area
4. OSPF process id

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4. Which of the following statements are not true regarding the configuration of OSPF routing protocols? Choose any two.

1. OSPF area must be mentioned in the Network command.
2. Two OSPF neighbours can have different process ids.
3. In the case of a multi-area OSPF network, all ABR ( Area Border Router) must be connected to area 0 ABR.
4. Single area  OSPF network must use area O.
5. The area number and the process id must be the same.

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5. Which of the following statements describe the characteristics of OSPF routing protocols? Choose any three.

1. OSPF supports VLSM.
2. Its configuration is more complex than RIP.
3. It can be used between two different autonomous systems.
4. It allows extensive control of routing updates.
5. Its administrative distance value is 90.

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1. 192.168.1.1
2. 10.10.10.2
3. 10.10.10.1
4. 192.168.10.10

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1. helps to confine network instability to single areas of the network.
2. reduces routing overhead.
3. reduces the complexities of router configuration.
4. It decreases latency by increasing bandwidth.
5. reduces convergence time.

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8. What is the value of the administrative distance of OSPF?

1. 90
2. 100
3. 110
4. 120

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9. A network administrator configures OSPF routing in a router with the following command. However, when he adds the new router to the OSPF network, other OSPF router doesn’t show the newly added network in their routing table. What is wrong with the command below?

1. OSPF process id is incorrect.
2. The area is not configured correctly.
3. The wild card mask is configured incorrectly.
4. The network id is incorrect.

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10.Which of the following are the correct way of configuring OSPF in a router and add network number 10.10.10.0/24 to area 0? Choose any two.

1. Router(config)#router ospf  0
2. Router(config)#router ospf 1
3. Router(config-router)#network 10.10.10.0 255.255.255.0 area 0
4. Router(config-router)#network 10.10.10.0 0.255.255.255 area 0
5. Router(config-router)#network 10.10.10.0 0.0.0.255 area 0

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11. Which version of OSPF is used by the IPv6 address?

1. OSPF  v2
2.  OSPF v3
3. OSPF v4
4. OSPF v5
5. OSPF v6

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12. Which of the following multicast address is used by the OSPF Hello protocol?

1. 224.0.0.5
2. 224.0.0.7
3. 224.0.0.8
4. 224.0.0.9

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13. What do you call an OSPF router that connects the internal OSPF router with the network outside OSPF autonomous system?

1. External router
2. Border router
3. The autonomous system boundary router
4. Backbone router

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1. Hello packet
2. Link state update
3. Link state response
4. Link state request

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15. The two adjacent OSPF routers exchange Hello packet between them to establish a neighbour adjacency. Which of the two values in the Hello packet must match with both the routers in order to establish a neighbour adjacency.

1. Router id
2. Dead interval
3. Router priority
4. Hello intervals

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16. What are the default OSPF hello and dead timers on an Ethernet connection?

1. Hello: 2 seconds; Dead: 20 seconds
2. Hello: 10 seconds; Dead: 40 seconds
3. Hello: 30 seconds; dead: 60 seconds
4. Hello: 60 seconds; Dead: 60 seconds

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17. Which of the followings OSPF command is used to determine that two adjacent OSPF routers have exchanged information in order to build a neighbour relationship?

1. show ip ospf neighbor
2. show ip interface brief
3. show interface
4. show ip route

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18.What is the default router priority value for all OSPF router?

1. 0
2. 1
3. 20
4. 255

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19. When DR and BDR election is needed in the OSPF network?

1. when all the OSPF routers in an area cannot form a neighbour adjacency.
2. when two adjacent OSPF routers are interconnected over a point to point link.
3. when the routers are connected over the common Ethernet link.
4. None of the above.

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20. A network administrator has to configure a single-area OSPF router with network number 192.168.10.0/30. What would be the wildcard mask that jas to be stated on the OSPF network command?

1. 0.0.0.255
2. 0.0.0.30
3. 0.0.0.3
4. 0.0.0.2

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