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The vulnerable period of slotted ALOHA is _________ packet duration.

(a) Two

(b) Ten

(c) One

(d) Three

I had been asked this question in an online interview.

This key question is from Packet Radio in chapter Multiple Access Techniques for Wireless Communications of Wireless/Mobile

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The correct choice is (c) One

The best I can explain: The vulnerable period of slotted ALOHA is one packet duration. Since, partial collisions are prevented through synchronization.

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