Exam-style question
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An office building wants to set up a local area network for 50 employees. The network requires moderate bandwidth, low latency, and the budget is limited. Which media is most appropriate?.
- A.Ethernet over twisted pair
- B.Fiber optic
- C.Coaxial cable
- D.Wireless LAN
Model answer
What a good answer should say
- Ethernet over twisted pair
Explanation
Why this works
Rule: For short‑range, cost‑sensitive LANs, twisted‑pair Ethernet offers sufficient bandwidth, low latency, and inexpensive cabling. Substitution: short distance, moderate bandwidth, low cost.
Working: Twisted‑pair cables are cheap, easy to install, and meet the bandwidth needs. Answer: Ethernet over twisted pair.
Conclusion: Twisted‑pair Ethernet is the suitable media.
Common mistake
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