Question

A network technician has configured a point-to-point interface on a router. Once the fiber optic cables have been run, though, the interface will not come up. The technician has cleaned the fiber connectors and used an optical power meter to confirm that light is passing in both directions without excessive loss. What is the MOST likely cause of this issue?

(A) Distance limitation
(B) Wavelength mismatch
(C) cross-talk
(D) EMI
(E) Macro bend

Answer 1

Wavelength Mismatch

Step-by-step explanation:

Optical fiber cables are used because they have lowest attenuation(loss of signal strength).

Attenuation is directly proportional to wavelength.

According to me this issue is most likely caused by Wavelength mismatch.If the wavelength of the signal is high then there is more attenuation in that signal.