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Techniques such as positive acknowledgement and timeouts must be employed to prevent ____ of critical event.

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Techniques such as positive acknowledgement and timeouts must be employed to prevent ____ of critical event.

(a) delay

(b) continuous selection

(c) retransmission

(d) suspension

I had been asked this question during an online exam.

This key question is from Software Architecture Tradeoffs topic in chapter Technology Tradeoffs in Software Defined Radio of Cognitive Radio

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The correct choice is (d) suspension

To explain I would say: Interference generates false messages and masks legitimate messages. The permanent suspension of a falsely masked message can be prevented by techniques such as positive acknowledgement and timeout.

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