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Mr. Dubey • 52.30K Points
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Q. Mostly                  is used in wireless LAN.

(A) time division multiplexing
(B) orthogonal frequency division multiplexing
(C) space division multiplexing
(D) channel division multiplexing
Correct : Option (B)

Explanation: 
 in orthogonal frequency division multiplexing, digital data is encoded on multiple carrier frequencies. it is also used in digital television and audio broadcasting in addition to wireless lans.

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