A network administrator configures a loopback interface as the OSPF router ID with the IP address of 192.168.1.1/30. What could be the consequence of using this 30-bit mask for the loopback interface?
- Older routers do not recognize the router-id command.
- The interface is not enabled for OSPF.
- OSPF routers must also be configured with a router priority value.
- This loopback interface may be advertised as a reachable network.
Explanation: A loopback interface used as an OSPF router ID normally uses a 32-bit mask that creates a host route. This route is not advertised as a route to other routers unless a network statement including this interface is added.
Exam with this question: CCNA 2 v5 Chapter 8: Check Your Understanding Questions Answers
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