Final answer:
Fiber optic cable can be used for both LANs and WANs, providing advantages over copper-based systems.
Step-by-step explanation:
No, fiber optic cable can be used for both Local Area Networks (LANs) and Wide Area Networks (WANs).
Fiber optic cables use total internal reflection to transmit signals. When light enters a fiber optic cable at an angle greater than the critical angle, it is reflected back into the cable and continues to travel along the cable. This allows for the transmission of light signals over long distances.
Fiber optic cables are commonly used in telecommunications to transmit telephone, internet, and cable TV signals. They offer advantages over copper-based systems, such as low loss, high bandwidth, and reduced crosstalk.