Students who are connected to the same switch are having slower than normal response times. The administrator suspects a duplex setting issue. What is the best command to use to accomplish the task?

If a network administrator suspects a duplex mismatch or a similar issue affecting network performance for students connected to the same switch, the most appropriate command to use would be:

show interfaces

This command is typically used on Cisco switches and routers. It provides detailed information about the status of each interface, including the duplex setting (half or full), speed, and any errors that might be affecting performance, such as collisions or CRC errors. These details are crucial for diagnosing issues related to physical connectivity and configuration mismatches on the network.

• ipconfig getifaddr en0 is a command specific to macOS systems and is used to get the IP address of a specific interface, which isn’t directly relevant for checking duplex settings on a switch.
• copy running-config startup-config is a Cisco command used to save the current running configuration to the startup configuration, which is not directly helpful in diagnosing duplex issues.
• show ip nat translations displays the Network Address Translation (NAT) translations table on a router, which is not directly related to troubleshooting duplex issues on a switch.