N10-005 Question #734: Real Exam Question with Answer & Explanation

The correct answer is B: Cable tester. A cable tester is the correct tool to verify the electrical continuity of a copper CAT6 patch cable and detect faults such as opens or shorts.

Question

Which of the following tools would a technician use to determine if a CAT6 patch cable has an open or short?

Options

AOTDR
BCable tester
CToner probe
DProtocol analyzer

Explanation

A cable tester is the correct tool to verify the electrical continuity of a copper CAT6 patch cable and detect faults such as opens or shorts.

Common mistakes.

A. An OTDR (Optical Time Domain Reflectometer) is used exclusively for fiber optic cables to locate breaks or measure loss, and cannot test copper cable conductors.
C. A toner probe is used to trace and locate a specific cable run through walls or patch panels, not to test electrical continuity or identify opens and shorts.
D. A protocol analyzer captures and decodes network traffic at the packet level and cannot perform physical-layer cable continuity tests.

Concept tested. Using a cable tester to diagnose copper cable faults

Reference. https://www.comptia.org/certifications/network

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