CCNA Routing and Switching (legacy) — Question 151

Which commands are required to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0? (Choose two.)

Answer options

• A. Router(config)# router ospf 1
• B. Router(config)# router ospf 0
• C. Router(config)# router ospf area 0
• D. Router(config-router)# network 192.168.16.0 0.0.0.255 area 0
• E. Router(config-router)# network 192.168.16.0 0.0.0.255 0
• F. Router(config-router)# network 192.168.16.0 255.255.255.0 area 0

Correct answer: A, D

Explanation

The correct commands to configure OSPF and add the specified network are 'Router(config)# router ospf 1' and 'Router(config-router)# network 192.168.16.0 0.0.0.255 area 0'. The other options are incorrect because they either specify an invalid OSPF process number, an incorrect command syntax, or a wrong wildcard mask for the network configuration.