LAN Cable Types
Fiber has taken off and network speeds have grown. Over the course of history, local area networks (LANs) have used a variety of cable types for bandwidth capability. How well do you know the evolution of LAN cabling?
1. The original ethernet networks used _____ as a transmission medium.
Correct Answer: Coaxial cable
2. Structured cabling standards were created to standardize networks based on _____ cabling.
Correct Answer: Unshielded twisted-pair (UTP)
3. As ethernet quickly grew from 10 Mbps to 100 Mbps speeds, the standard created for UTP cabling to support these speeds was Cat _____.
Correct Answer: 5
4. The first optical fiber used in LANs was _____.
Correct Answer: Multimode
5. With the advent of gigabit ethernet, UTP cabling required another upgrade to Cat _____ and the use of all four pairs simultaneously.
Correct Answer: 5e
6. Gigabit ethernet required changing from slower LEDs as transmitters to lasers, especially low-cost vertical cavity self-emitting lasers.
Correct Answer: True
7. As ethernet now has standards for speeds of more than 100 Gbps and is approaching terabit speeds, _____ and _____ are no longer feasible for cabling.
Correct Answer: Copper wires
Correct Answer: Multimode fiber
8. The big change for LANs came from using passive optical networks based on _____ technology.
Correct Answer: Fiber to the home GPONs
9. Passive optical networks all worked on _____ fiber, a major change for structured cabling networks.
Correct Answer: Single-mode
10. Passive optical LANs are much less expensive than normal ethernet LANs because _____.
Correct Answer: All of the above
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