CompTIA Network+ (N10-009) — Question 151

A network administrator is notified that a user cannot access resources on the network. The network administrator checks the physical connections to the workstation labeled User 3 and sees the Ethernet is properly connected. However, the network interface’s indicator lights are not blinking on either the computer or the switch. Which of the following is the most likely cause?

Answer options

• A. The switch failed.
• B. The default gateway is wrong.
• C. The port is shut down.
• D. The VLAN assignment is incorrect.

Correct answer: C

Explanation

The correct answer is C because if the port is shut down, it will not transmit or receive data, leading to inactive indicator lights. Option A could be a potential issue, but since the physical connection is intact, it is less likely. Option B pertains to routing but does not affect the physical connection directly, and option D relates to VLAN configuration which would not cause the indicator lights to remain off if the port was active.