Which type of fiber-optic cable has a wider fiberglass core?

Multimode fiber-optic cable features a wider fiberglass core compared to single-mode fiber. The core diameter of multimode fiber typically ranges from 50 to 62.5 microns, which allows multiple light modes to propagate simultaneously. This characteristic is advantageous for short-distance communication, enabling it to support higher data rates over moderate distances.

In contrast, single-mode fiber has a much narrower core, approximately 8 to 10 microns in diameter, designed to carry light directly down the fiber with minimal reflection, effectively transmitting data over longer distances with lower attenuation. Coaxial cable, while a type of electrical cable used for transmitting data, does not fall under the category of fiber-optic cables. Optical as a term generally refers to anything involving light, but it does not specifically pertain to a type of fiber-optic cable.

Therefore, multimode fiber's wider core allows for its operation in environments and applications that require the transmission of multiple signals over shorter distances, making it the correct choice in this context.