What is the purpose of a time domain reflectometer?

A.
It uses pulses to locate and test for sheath faults, damaged conductors, loose connectors,
splices, bridge taps, split pairs, and other problems.

B.
It opens shorts and pinholes in cable shielding.

C.
It correlates the returned light pulses with a location in the fiber.

D.
It opens kinks and mismatched cable connectors.