Final answer:
The most likely issue with a 100-meter fiber optic cable with a small service loop causing a network outage is exceeding the bend radius, which can disrupt the light signals within the cable. therefore, the correct answer is a.bend radius exceeded.
Step-by-step explanation:
When troubleshooting a network outage and assessing a 100-meter fiber cable with a small service loop, the most likely issue is a. bend radius exceeded. Fiber optic cables have specific minimum bend radius specifications to prevent damage to the fibers within the cable.
Exceeding this radius can cause the light to reflect incorrectly, leading to signal loss or complete signal outage.
Considering that 100 meters is within the typical range for fiber optic cables, and fiber optics are immune to electromagnetic interference (hence, RF interference from impedance mismatch is unlikely), and dirty connectors would not typically be associated with the presence of a service loop, exceeding the bend radius is the most probable cause of the outage.
However, none of the provided reference information substantiates concerns about RF interference, DC power lines, or the resistance of coaxial cables, which are unrelated to this fiber optic scenario.