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If there are n signal sources of same data rate, then the TDM link has _______ slots.

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If there are n signal sources of same data rate, then the TDM link has _______ slots.

(a) n

(b) n/2

(c) n*2

(d) 2^n

I had been asked this question at a job interview.

This question is from Multiplexing topic in chapter Security & Physical Layer of Computer Network

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The correct choice is (a) n

Explanation: In TDM, the total unit of time is divided equally among all the signal sources and each and every source has access to the complete channel bandwidth during its allotted time slot. When the time slot of the source is not active, it remains idle and waits for its slot to begin.

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