Which option matches reference cables to the fiber size and loss specification?

• A. Fiber Size & Fiber Type
• B. Connector Type
• C. Fiber Size & Loss Specification
• D. Fiber Size & Jacket

Answer: (C)

The key idea is that reference cables must be specified by both the fiber size and the loss they introduce, so you can accurately calibrate and compare measurements. The fiber size tells you the exact core/cladding dimensions to ensure proper mating and consistent optical path, while the loss specification provides the known attenuation of the reference cable itself, which is essential for calculating total link loss or adjusting measurements. Without the loss value, you can’t translate what you’re seeing into a meaningful attenuation figure; without matching fiber size, the test setup may not be physically compatible or produce accurate results. The other options miss one of these critical pieces: fiber size with fiber type omits the necessary loss data; connector type focuses on interface, not attenuation; fiber size with jacket covers protection rather than measurement characteristics.