CompTIA Network+ (N10-008) — Question 310

While setting up a new workstation, a technician discovers that the network connection is only 100 full duplex (FD), although it is connected to a gigabit switch.

While reviewing the interface information in the switch CLI, the technician notes the port is operating at 100FD but shows many RX and TX errors. The technician moves the computer to another switchport and experiences the same issues.

Which of the following is MOST likely the cause of the low data rate and port errors?

Answer options

• A. Bad switchports
• B. Faulty drivers
• C. Cable length
• D. Incorrect pin-out

Correct answer: D

Explanation

The correct answer is D, Incorrect pin-out, because improper wiring can lead to communication issues, resulting in errors and limiting speed. Options A, B, and C are less likely since the problem persists across multiple ports and is not typically caused by driver issues or cable length in a gigabit context.