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A network diagram displaying OSPF routing topology with routers, connections, and IP addresses, in a clear and informative style.

OSPF Configuration Quiz

Test your knowledge on OSPF (Open Shortest Path First) configuration with this engaging quiz! Designed for networking enthusiasts and professionals, it covers essential concepts and best practices for OSPF routing protocols.

Key features include:

Multiple choice questions
Practical scenarios to solve
Expert-level content

15 Questions4 MinutesCreated by ConfiguringRouter42

What is the recommended Cisco best practice for configuring an OSPF-enabled router so that each router can be easily identified when troubleshooting routing issues?

Configure a value using the router-id command.

Use the highest active interface IP address that is configured on the router.

Use a loopback interface configured with the highest IP address on the router.

Use the highest IP address assigned to an active interface participating in the routing process.

Refer to the exhibit. A network administrator has configured OSPFv2 on the two Cisco routers but PC1 is unable to connect to PC2. What is the most likely problem?

Interface Fa0/0 has not been activated for OSPFv2 on router R2.

Interface Fa0/0 is configured as a passive-interface on router R2.

Interface S0/0 is configured as a passive-interface on router R2.

Interface s0/0 has not been activated for OSPFv2 on router R2.

Which command is used to verify that OSPF is enabled and also provides a list of the networks that are being advertised by the network?

Show ip interface brief

Show ip ospf interface

Show ip protocols

Show ip route ospf

Refer to the exhibit. Which command did an administrator issue to produce this output?

R1# show ip ospf interface serial0/0/1

R1# show ip route ospf

R1# show ip ospf

R1# show ip ospf neighbor

What command would be used to determine if a routing protocol-initiated relationship had been made with an adjacent router?

Ping

Show ip ospf neighbor

Show ip interface brief

Show ip protocols

Refer to the exhibit. On which router or routers would a default route be statically configured in a corporate environment that uses single area OSPF as the routing protocol?

Refer to the exhibit. What is the OSPF cost to reach the router A LAN 172.16.1.0/24 from B?

782

128

By default, what is the OSPF cost for any link with a bandwidth of 100 Mb/s or greater?

100000000

10000

100

Refer to the exhibit. If the switch reboots and all routers have to re-establish OSPF adjacencies, which routers will become the new DR and BDR?

Router R4 will become the DR and router R1 will become the BDR.

Router R2 will become the DR and router R3 will become the BDR.

Router R1 will become the DR and router R2 will become the BDR.

Router R4 will become the DR and router R3 will become the BDR.

An OSPF router has three directly connected networks; 172.16.0.0/16, 172.16.1.0/16, and 172.16.2.0/16. Which OSPF network command would advertise only the 172.16.1.0 network to neighbors?

Router(config-router)# network 172.16.1.0 0.0.255.255 area 0

Router(config-router)# network 172.16.0.0 0.0.15.255 area 0

Router(config-router)# network 172.16.1.0 255.255.255.0 area 0

Router(config-router)# network 172.16.1.0 0.0.0.0 area 0

Refer to the exhibit. Which three statements describe the results of the OSPF election process of the topology that is shown in the exhibit? (Choose three.)

R3 will be elected BDR.

The R4 FastEthernet 0/0 priority is 128.

The R4 router ID is 172.16.1.1.

R1 will be elected BDR.

The router ID on R2 is the loopback interface.

R2 will be elected DR.

What does the number 11 represent?

The OSPF process ID on R1

The cost of the link to R1

The autonomous system number to which R1 belongs

The administrative distance that is manually assigned to R1

The area number where R1 is located

Refer to the exhibit. If no router ID was manually configured, what would router Branch1 use as its OSPF router ID?

10.0.0.1

10.1.0.1

192.168.1.100

209.165.201.1

What are the two purposes of an OSPF router ID? (Choose two.)

To uniquely identify the router within the OSPF domain

To facilitate router participation in the election of the designated router

To enable the SPF algorithm to determine the lowest cost path to remote networks

To facilitate the establishment of network convergence

To facilitate the transition of the OSPF neighbor state to Full

What will an OSPF router prefer to use first as a router ID?

A loopback interface that is configured with the highest IP address on the router

Any IP address that is configured using the router-id command

The highest active interface IP that is configured on the router

The highest active interface that participates in the routing process because of a specifically configured network statement

OSPF Configuration Quiz

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