Digital Communication Questions and Answers
Q1.
The output of the source encoder is an analog signal.
Answer :
False
Q2.
When probability of error during transmission is 0.5, it indicates that
Answer :
Channel is very noisy & No information is received
Q3.
When X and Y are statistically independent, then I (x,y) is
Answer :
0
Q4.
Coded system are inherently capable of better transmission efficiency than the uncoded system.
Answer :
True
Q5.
Error is equal to
Answer :
Square of the distance between the data points
Q6.
Interpolation is a method of
Answer :
Estimating
Q7.
In digital image coding which image must be smaller in size?
Answer :
Output image
Q8.
A rate distortion function is a
Answer :
Convex function
Q9.
Digital signals are easy for
Answer :
1. Storage
2. Handling
3. Time dilation
Q10.
In symmetric key cryptosystem, who knows the key?
Answer :
Sender & Receiver
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