Cisco Certified Network Associate (CCNA) Practice Exam

Which command provides a quick overview of IP-related interface information?

1. #show interface status

2. #show version

3. #show ip interface brief

4. #show protocols

The correct answer is: #show ip interface brief

The command that provides a quick overview of IP-related interface information is the one that displays a summary of the interfaces along with their IP addresses, status, and protocol information. This command presents a concise output, allowing network administrators to quickly assess the operational state of interfaces on a device. Specifically, "show ip interface brief" lists each interface along with its assigned IP address and indicates whether it is up or down, along with the status of the protocol, which is essential for troubleshooting connectivity issues. The ability to see this information in a streamlined format is invaluable for network diagnostics and management. Other commands listed serve different purposes. For instance, "show interface status" focuses on interface status without emphasizing IP-specific information, while "show version" provides details about the device's software and hardware, not interface information. The "show protocols" command offers insights into the protocols running on the interfaces, but it does not deliver the quick snapshot of IP assignments and statuses that the correct command does.