Cisco Certified Network Associate (CCNA) Practice Exam

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Which command displays the OSPF v3 process ID, router ID, reference bandwidth, and areas that are configured?

#show ipv4 ospf
#show ipv6 ospf
#show ospf statistics
#display ospf configuration

The correct answer is: #show ipv6 ospf

The command that provides information about the OSPFv3 process ID, router ID, reference bandwidth, and configured areas is the one that specifically pertains to OSPF for IPv6. OSPFv3 is the version of OSPF that is designed to support IPv6, and it includes parameters and configurations related to IPv6 routing. Using the correct command allows network administrators to quickly assess the routing protocol's configuration and functionalities, which is crucial for troubleshooting and optimizing the network. The information retrieved not only includes the vital elements like the process ID and areas but also helps ensure that OSPF is correctly set up to handle IPv6 traffic. Commands pertaining to specifically IPv4 or general statistics will not yield the necessary details for OSPFv3, as they focus on different versions or aspects of OSPF that are not applicable to IPv6 configurations. Thus, focusing on OSPFv3 is essential for gathering the relevant information about the IPv6 routing setup.