Digital Communication Questions and Answers
Q1.
In TDM, at the receiver end, ____ filter is used.
Answer :
Low pass
Q2.
Properties used to determine stream’s fidelity
Answer :
Sampling rate & Bit depth
Q3.
Source of noise in delta modulation is
Answer :
Granularity & Slope overload
Q4.
Space division has dedicated
Answer :
Paths
Q5.
In M-ary FSK, as M increases error
Answer :
Decreases
Q6.
Which has 50% maximum power efficiency?
Answer :
Class A
Q7.
Flat top sampling of low pass signals
Answer :
Gives rise to aperture effect
Q8.
Which of the following requires a synchronizing signal?
Answer :
PAM
Q9.
Adding improvement to the signal subset choice by starting with the densest possible lattice for the space is called as
Answer :
Higher density lattice structures
Q10.
Trellis coded modulation scheme
Answer :
Has memory
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