CompTIA Network+ (N10-007) — Question 542

A network technician at a small office upgrades the LAN switch. After the upgrade, a user reports being unable to access network resources. When the technician checks the switchport, the LED light is not lit. Which of the following should the technician check FIRST?

Answer options

• A. The device is using the correct cable type.
• B. The switchport is functioning properly.
• C. The device is connected to the switch.
• D. The switch is connected to the router.

Correct answer: C

Explanation

The first thing to check is whether the device is connected to the switch, as an unlit LED indicates a potential disconnection. If the device isn't connected, the other options would not matter, as there would be no physical link to troubleshoot. Checking the cable type or the switchport's functionality can be secondary steps after ensuring the connection is intact.