Which of the following is used to check for a break in a Cat5 cable?

A.
A multimeter

B.
A wire crimper

C.
An optical tester

D.
A punch down tool

Explanation:
A multimeter is a device that is used to measure voltages and resistances in electronic
components. It can also be used to test for continuity in a wire. A continuity test will indicate if
there is a break in the wire.
Incorrect Answers:
C: An optical tester is a device that measures the quality of strength of light signals passing
through an optical cable.
D: A punch down tool is used to insert the wire in the IDC (insulation displacement
connector).Reference:David Groth and Dan Newland, A+ Complete Study Guide (2nd Edition),
Sybex,Alameda CA, 2001, pp. 30-34.David Groth and Toby Skandier, Network+ Study Guide (4th
Edition), Sybex, AlamedaCA, 2005, pp. 270, 271-272.