Multiple choice

SONET works on the principle of

  1. TDM

  2. FDM

  3. WDM

  4. Only 1 and 2

  5. 1, 2 and 3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

WDM is analog multiplexing technique to combine optical signals, whereas in SONET, multiple optical fibers are multiplexed and demultiplexed .

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