DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In pure ALOHA, the vulnerable time is ____ the frame transmission time.
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the same as
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two times
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three times
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none of the above
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Explanation:
Detailed explanation-1: -The vulnerable time or susceptible time in Pure Aloha is equal to (2×Tt). In Slotted Aloha, the vulnerable time is equal to (Tt). Maximum efficiency = 18.4%. Maximum efficiency = 36.8%.
Detailed explanation-2: -In case of slotted ALOHA, the vulnerable time period for collision between two frames is equal to time duration of 1 slot, which is equal to 1 frame time, i.e. .In time, average number of transmission attempts is G.
Detailed explanation-3: -Vulnerable time in ALOHA depends on the frame transmission time (Tfr), but in CSMA it depends on frame propagation time.
There is 1 question to complete.