CompTIA Network+ (N10-006) — Question 68

A technician is looking at an issue with a computer connecting to the network. The technician determines wire 3 of a UTP Ethernet cable run has a break in it. This computer was previously connected to the switch at 1Gbps throughput. This PC is a kiosk and does not need anything more than 50-60Mbps connection speed.
Which of the following can the technician do to resolve the issue quickly?

Answer options

• A. Rewire both ends to have the wire on pin 6 remapped to pin 3. Force the duplex and speed to 100Mbps full duplex.
• B. Rewire both ends to have the wire on pin 6 remapped to pin 3. Force the duplex and speed to 1000Mbps full duplex.
• C. Rewire both ends to have the wire on pin 7 remapped to pin 3. Force the duplex and speed to 100Mbps full duplex.
• D. Rewire both ends to have the wire on pin 7 remapped to pin 3. Force the duplex and speed to 1000Mbps full duplex.

Correct answer: D

Explanation

The correct answer is D because remapping pin 7 to pin 3 allows for a proper connection while forcing the duplex and speed to 1000Mbps ensures maximum compatibility with the switch's capabilities. Options A and C only configure the speed to 100Mbps, which is insufficient for a 1Gbps environment, while option B incorrectly remaps pin 6 instead of the correct pin 7.