easyMultiple ChoiceObjective-mapped
FC0-U71 Practice Question: Verify that a twisted-pair Ethernet cable is…
A technician needs to verify that a twisted-pair Ethernet cable is wired correctly and has no breaks. Which tool should be used?
⚠ Common exam trap
Candidates often confuse a multimeter's ability to check continuity with the cable tester's ability to verify correct pairing and wiring standards, leading them to choose the multimeter when only a cable tester can confirm proper Ethernet wiring.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cable tester
A cable tester sends signals through each conductor in the twisted-pair cable and checks for continuity, correct pin-to-pin wiring (e.g., T568A or T568B), and shorts or opens. This makes it the correct tool to verify proper wiring and detect breaks in an Ethernet cable.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Multimeter
Why it's wrong here
Multimeters measure electrical properties like voltage and resistance, not cable wiring.
- ✗
Loopback plug
Why it's wrong here
Loopback plugs test network interface cards, not the cable itself.
- ✓
Cable tester
Why this is correct
Cable testers verify pinouts, continuity, and proper wiring of Ethernet cables.
- ✗
Toner probe
Why it's wrong here
Toner probes are used to trace cables within walls, not for verifying wiring.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.