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  3. Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

admin2009-05-19  44
问题 Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)
选项 A、It uses inexpensive hubs
B、It operates without collisions
C、It operates on switches
D、It provides faster data transfer
E、It utilizes fewer wiring pairs
答案B,D
解析 Explanation:
Full duplex Ethernet allows concurrent sending and receiving, which allows the full bandwidth to be used for both sending and receiving. The result is a collision free network with increased throughput.

Incorrect Answers:
A, C. These are incorrect because full duplex doesn’t require hubs or switches. Full duplex operation can be used on switch and router ports, as well as PC hosts.

E. This is incorrect because full duplex actually uses more wiring pairs. In full duplex, both wire pairs are used. Half duplex uses only a single pair.
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