CompTIA Network+ (N10-008) — Question 707

A technician is troubleshooting an incident regarding a fiber that is connecting two buildings. The technician suspects a break may have occurred midway along the route. Which of the following tools should the technician use to verify the point where the break might be located?

Answer options

• A. Loopback adapter
• B. OTDR
• C. Cable tester
• D. New SFPs

Correct answer: B

Explanation

The correct tool for locating a break in a fiber optic cable is an OTDR (Optical Time-Domain Reflectometer), as it can measure the time and intensity of light reflections to pinpoint issues. A loopback adapter is used for testing the network interface, a cable tester checks for electrical integrity, and new SFPs (Small Form-factor Pluggable transceivers) do not aid in locating breaks.