CompTIA A+ 220-901

Category - Networking

A network administrator wants to install fiber optic cable that will work at the fastest speed possible over longer distances. What type of fiber should the administrator purchase?
  1. Full-Duplex
  2. Multimode
  3. Single-Mode
  4. Half-Duplex
Explanation
Answer: C - Single-Mode fiber is the fastest fiber media available for long distances.

Key Takeaway: Single-mode fiber can be run farther than most twisted-pair cable with much higher speeds (up to and beyond 10Gbps). Multimode fiber has a larger diameter and can transmit at must faster speeds, but due to distance limitations it is usually only used in server rooms and for backbone connections. Full- and half-duplex apply to how the NIC communicates, not the type of media.
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