Multiple choice

You are configuring OSPF on a router with three interfaces with the IP addresses listed below. Which of the following network commands would include all three interfaces in the OSPF routing process in a single area? (Choose all that apply)

Ethernet0 - 192.168.1.2 255.255.255.0 Ethernet - 192.168.2.2 255.255.255.0 Serial1 - 172.16.3.2 255.255.255.252

  1. network 0.0.0.0 255.255.255.255 area 0

  2. network 192.168.0.0 0.0.255.255 area 0

  3. network 255.255.255.255 0.0.0.0 area 0

  4. network 192.168.1.2 0.0.0.0 area 0 network 192.168.2.2 0.0.0.0 area 0 network 172.16.3.2 0.0.0.0 area 0
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct command sequence for configuring OSPF in a single area configuration is:

router ospf <process-id> network <network address> <wildcard mask> area <area number>

Answer A would include all interfaces on the router, the commands in answer D define them individually per interface.

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