A technician needs to verify a set of patch cables in inventory are working properly. Which of the following tools should the technician use?

A multimeter can check basic continuity on individual wires but cannot verify correct wiring sequence or detect miswired pairs across all pins simultaneously.

A cable tester sends electrical signals through each wire pair in a patch cable and verifies continuity, correct pin-to-pin mapping, and the absence of shorts or miswires, directly confirming whether a cable is functional and properly terminated.

A toner probe is used to trace and identify cable runs through walls or conduits, not to verify electrical functionality or wiring correctness.

A crimper is used to attach RJ-45 connectors to raw cable ends during cable fabrication, not to test whether existing cables are functioning correctly.