CompTIA Network+ (N10-006) — Question 34

Which of the following tools would a network technician use to troubleshoot a span of single-mode fiber cable?

Answer options

• A. Punchdown tool
• B. Spectrum analyzer
• C. Ethernet tester
• D. OTDR

Correct answer: B

Explanation

The correct answer is B, the Spectrum analyzer, as it is specifically designed to analyze the frequencies and performance of fiber optic signals. The other options, such as the Punchdown tool, Ethernet tester, and OTDR, are not used for diagnosing issues in the same way and serve different purposes in network maintenance.