7. (5 points for each, 15 points in total) 1) (5 points) What is the difference between a HUB and a SWITCH? 2) (10 points) What is the hidden and exposed terminal problems in wireless transmission? What strategies does 802.11 use to avoid such problems?
Added by Ismael G.
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Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA): 802.11 uses a protocol called CSMA/CA to avoid collisions. Before transmitting data, a device listens to the wireless medium to check if it is idle. If the medium is busy, the device waits for a Show more…
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