Digital Communication Questions and Answers
Q1.
Synchronization is used in system which has
Answer :
Non coherent modulation techniques & Many users accessing
Q2.
In open loop method, the time reference error ______ with respect to time.
Answer :
Increases exponentially
Q3.
Processing gain is the ratio of message bandwidth to signal bandwidth.
Answer :
False
Q4.
Which is more suitable when large number of transmitters are used?
Answer :
Asynchronous CDMA
Q5.
TDM is used to
Answer :
Use only one carrier frequency to handle different signals
Q6.
Which maintains better fidelity?
Answer :
Digital communication
Q7.
Which provides constant delay?
Answer :
Synchronous TDM
Q8.
In CSMA, collision window is _____ to cable length.
Answer :
Greater
Q9.
As the number of carriers increases, the number of guard bands
Answer :
Increases
Q10.
In SPADE system, the carrier is done based on
Answer :
Demand assignment
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