Single-mode fiber (as well as multi-mode fiber) transmits data using beams of light, allowing for high-speed data transfer over flexible fiber-optic cables.
From CompTIA A+ 220-1101 Official Study Guide, Objective 2.1 – Networking media:
“Fiber optic cables transmit data using light. Single-mode fiber is used for long-distance, high-speed communication.”
Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Networking Media
CompTIA Exam Objectives 220-1101, Domain 2.1
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