A contractor has removed a wall jack and thrown it away. There is no longer a line number
on the network cable. A technician attaches a far end connector and proceeds to several
wiring closets to find the patch panel location of the cable. Which of the following tools will
the technician need for this job?

A.
Toner probe

B.
Loopback plug

C.
Cable tester

D.
Multimeter