Which cable is used for high-bandwidth data transmission with light signals?

Which cable is used for high-bandwidth data transmission with light signals?

• A. Coaxial Cable
• B. Optical Fiber Cable
• C. Category Cable
• D. Speaker Wire

Answer: (B)

High-bandwidth data transmission with light signals is achieved with optical fiber cable. Light travels through a glass or plastic core and is guided by total internal reflection at the core–cladding boundary, allowing very high data rates over long distances with minimal loss. Because the signal is light, it’s largely immune to electromagnetic interference, which helps maintain signal integrity in noisy environments. Coaxial cable carries electrical signals on a conductor and is more susceptible to EMI and attenuation, limiting its bandwidth compared to fiber. Category cable uses copper twisted pairs for electrical data transmission and supports high speeds only over shorter distances. Speaker wire is designed for audio and not appropriate for data networks.

High-bandwidth data transmission with light signals is achieved with optical fiber cable. Light travels through a glass or plastic core and is guided by total internal reflection at the core–cladding boundary, allowing very high data rates over long distances with minimal loss. Because the signal is light, it’s largely immune to electromagnetic interference, which helps maintain signal integrity in noisy environments.

Coaxial cable carries electrical signals on a conductor and is more susceptible to EMI and attenuation, limiting its bandwidth compared to fiber. Category cable uses copper twisted pairs for electrical data transmission and supports high speeds only over shorter distances. Speaker wire is designed for audio and not appropriate for data networks.