Certified Fiber Optics Practice Exam 2025 – All-in-One Guide to Mastering Your Certification!

The identification of coaxial fiber as not being a type of fiber optic cable is based on the fundamental characteristics that differentiate fiber optic cables from other types of cabling. Single-mode fiber, multi-mode fiber, and plastic optical fiber are all variations of optical fiber that utilize light to transmit data.

Single-mode fiber is designed for long-distance communication, allowing light to travel through a single path or mode, which reduces signal loss and distortion. Multi-mode fiber is suited for shorter distances and uses multiple paths (modes) of light, allowing for greater bandwidth over relatively shorter distances. Plastic optical fiber offers a flexible and less expensive alternative, utilizing plastic instead of glass to carry light signals, making it ideal for certain applications.

In contrast, coaxial cables are typically used for electrical signal transmission and consist of a central conductor, an insulating layer, a metallic shield, and an outer insulating layer. They are not designed to transmit data via light, and therefore, they do not belong to the fiber optic categories. Thus, coaxial fiber is correctly identified as not being a type of fiber optic cable.