Multiplexing and Multiplexers – Exercise – 1

1. Multiplexing is used in :

(a) Packet switching
(b) Circuit switching
(c) Data switching
(d) None of the mentioned

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.
2. Quadrature multiplexing is

(a) same as FDM.
(b) same as TDM.
(c) a combination of FDM and TDM.
(d) the scheme where same carrier frequency is used for two different signals.

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.
3. In order to separate channels in a TDM receiver, it is necessary to use :

(a) AND gates
(b) bandpass filters
(c) differentiation
(d) integration

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.
4. To separate channels in an FDM receiver, it is necessary to use :

a. AND gates
b. bandpass filters
c. differentiation
d. integration

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us disc (a) (b)
5. Which one of the following is not an advantage of TDM over FDM :

(a)  TDM has simpler instrumentation
(b)  TDM is not vulnerable in the usual sources of FDM interchannel cross talk
(c)  TDM can achieve the minimum bandwidth as FDM without loss of cross talk immunity
(d)  None of these

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.