You have a home customer who hasnt been able to connect to t

You have a home customer who hasn’t been able to connect to the Internet for two days. He’s called his broadband provider and has been assured that Internet service to his area is normal. He suspects either his DSL modem is bad or something is wrong with his computer. You start troubleshooting by testing his network interface card (NIC). What tool should you use to test the NIC?

A. Use a multimeter.

B. Use a loopback tester.

C. Use a cable tester.

D. Ping the gateway.

Solution

B. Use a loopback tester.

The most common tool used to test the physical functioning of a NIC is a loopback tester.