Cisco Certified Network Associate (CCNA) Practice Exam

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Which command confirms that EIGRP for IPv6 is enabled and shows its hop count and K values?

show ipv6 eigrp interfaces
show ip route
show ipv6 protocols
show ipv6 eigrp neighbors

The correct answer is: show ipv6 protocols

The command that confirms that EIGRP for IPv6 is enabled and provides information about its hop count and K values is indeed the one that falls under IPv6 protocols. This command displays the status of the EIGRP process for IPv6, including the configured K values which are essential for determining path metrics in EIGRP. The K values, which represent various metrics used by EIGRP to calculate the best path, play a crucial role in routing decisions. When you run this command, it not only verifies that EIGRP is operational for IPv6 but also gives a comprehensive summary of the routing protocols in use, including their metrics. In contrast, other commands provide different types of information. For example, commands that focus on neighbor relationships or interface information might not give a complete view of the configured EIGRP process and its metrics. Thus, this command is essential for network administrators when diagnosing and verifying EIGRP configurations in an IPv6 environment.