Discussion
Which of the following types of connections can use full duplex?
1. Hub to hub
2. Switch to switch
3. Host to host
4. Switch to hub
5. Switch to host
Answer: D
Correct answer: 2, 3 and 5
Full duplex needs a dedicated link between exactly two devices, so it works switch to switch, host to host with a crossover cable, and switch to host. A hub is a shared medium by construction, so any connection involving one must be half duplex.
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