CompTIA Network+ (N10-008) — Question 39

A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use to detect the exact break point of the fiber link?

Answer options

• A. OTDR
• B. Tone generator
• C. Fusion splicer
• D. Cable tester
• E. PoE injector

Correct answer: A

Explanation

An OTDR (Optical Time Domain Reflectometer) is specifically designed to locate faults in fiber optic cables by sending pulses of light and measuring reflections. The other options, such as tone generators and cable testers, are not suitable for pinpointing breaks in fiber links, while a fusion splicer is used for joining fibers rather than detecting breaks.