Fiber Installation Test Q&A Latest Update

Content Preview

Fiber Installation Test | Q&A Latest Update 2025/2026 | 100% PASS All fiber-optic communication systems must contain - Answer -An optical fiber transmission medium. The optical fiber core - Answer -Transmits the optical signal, and its structure and chemical makeup are critical to fiber operation. Wavelengths used in a fiber-optic communication system - Answer Include 1,310 nm and 1,550 nm in single-mode transmission systems. As a lightwave enters an optical fiber, - Answer -Its speed decreases, and the lightwave refracts at an angle. Attenuation in fiber - Answer -Can be caused by absorption, scattering, macrobends, and fiber numerical aperture mismatch. Which of the following is not an advantage of optical fiber? - Answer Fiber carries more electrical current and radiates more energy than coaxial cable. Which of the following is true about light source selection criteria? Answer -Cost should never be a higher concern than the quality of the signal required to meet system performance. Laser diodes - Answer -Being applied for the upstream transmission from homes and businesses are DFB lasers, due to the increased bandwidth demands of voice and data services.