Cisco Certified Network Associate (CCNA) Practice Exam

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Which command displays detailed IP-related information about a specific interface?

  1. show interface INTERFACE NUMBER

  2. show ip route

  3. show ip interface INTERFACE

  4. show vtp status

The correct answer is: show ip interface INTERFACE

The command that displays detailed IP-related information about a specific interface is "show ip interface INTERFACE." This command provides important information such as the interface's IP address, subnet mask, and details on various parameters, including whether the interface is enabled for IP traffic. It demonstrates the operational status, any access control lists applied, and whether features like DHCP and proxy ARP are enabled or disabled. This makes it invaluable for troubleshooting IP connectivity issues associated with a particular interface. Other commands in this context serve different purposes. The "show interface INTERFACE NUMBER" command, for instance, provides a broader overview of the interface's status and statistics, but does not focus specifically on IP-related parameters. The "show ip route" command displays the routing table, which includes network reachability information but is not specific to a single interface. Lastly, "show vtp status" pertains to VLAN Trunking Protocol (VTP) and does not relate to IP configuration or interface details.