Cisco Certified Network Associate (CCNA) Practice Exam

What command displays interfaces with configured IPv6 addresses?

1. #show ipv6 routes

2. #show ipv6 interface

3. #show ipv6 interface brief

4. #display ipv6 configuration

The correct answer is: #show ipv6 interface brief

The command that effectively displays interfaces with configured IPv6 addresses is the one that provides a summary of all interfaces along with their respective IPv6 addresses in an easily readable format. This command offers not only the IPv6 address associated with each interface but also shows the status of the interfaces, making it straightforward for the user to assess the configuration. Using this command allows network administrators to quickly identify which interfaces are up and running and have IPv6 addresses assigned. This is vital in troubleshooting and ensuring that the network interfaces are properly configured for IPv6 communication. Other options, while related to IPv6, do not provide the same level of clarity. For example, a command that displays detailed routing information instead focuses on the routes IPv6 packets can take rather than on the interfaces themselves. Similarly, a command that examines interfaces might present detailed output without the succinct summary required for quick assessments, making it less efficient for the specific need of checking configured IPv6 addresses. The option that mentions displaying configuration might also not focus explicitly on the interfaces and their IP addresses in a consolidated manner.