nerdexam
(ISC)2

CISSP · Question #1356

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?

The correct answer is A. OTDR. An OTDR (optical time domain reflectometer) is a tool that can be used to detect the exact break point of a fiber link. An OTDR works by sending a pulse of light into the fiber and measuring the time and intensity of the reflected light that comes back. By analyzing the reflected

Submitted by lucia.co· Mar 5, 2026Communication and Network Security

Question

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?

Options

  • AOTDR
  • BTone generator
  • CFusion splicer
  • DCable tester
  • EPoE injector

How the community answered

(34 responses)
  • A
    88% (30)
  • B
    3% (1)
  • C
    3% (1)
  • D
    6% (2)

Explanation

An OTDR (optical time domain reflectometer) is a tool that can be used to detect the exact break point of a fiber link. An OTDR works by sending a pulse of light into the fiber and measuring the time and intensity of the reflected light that comes back. By analyzing the reflected light, the OTDR can determine the distance, location, and severity of any faults or breaks in the fiber link. An OTDR can also provide information about the attenuation, splice loss, and connector loss of

Topics

#Fiber optics#network troubleshooting#OTDR#cable fault location

Community Discussion

No community discussion yet for this question.

Full CISSP Practice