A Certkiller .com user calls you with a problem. Suddenly it seems that the user is unable to
access any network resources. What should you check FIRST in order to solve the problem?

A.
Check for a link light on the NIC.

B.
Reconfigure TCP/IP settings.

C.
Replace the NIC.

D.
Reinstall network interface card (NIC) drivers.

Explanation:
Sometime the lock on the network cable is worn out or not working properly and it is easy to
disconnect it without meaning it. A link light would tell you that there is connection all the way from
the switch/hub to the computer.