Digital Communication Questions and Answers
Q1.
Digital communication system can handle
Answer :
1. Analog signals
2. 1D signals
3. 2D signals
Q2.
What are the disadvantages of digital communication?
Answer :
Needs more bandwidth & Is more complex
Q3.
Synchronization available in digital communication are
Answer :
1. Symbol synchronization
2. Frame synchronization
3. Carrier synchronization
Q4.
Capacity of the channel can be increased by reducing in band noise power.
Answer :
True
Q5.
Matched filtering operation includes
Answer :
Spectral phase & amplitude matching
Q6.
Two functions are called as orthogonal if on integrating the product we get
Answer :
Zero
Q7.
Which occurs due to equilibrium fluctuations?
Answer :
Thermal & Johnson noise
Q8.
Analog information is converted to digital data using
Answer :
1. Sampling
2. Quantization
3. Coding
Q9.
Find the 8-ary waveform for the word ‘HAPPY’.
Answer :
0440020246
Q10.
As the order of the filter increases, the cost _____ and complexity _____
Answer :
Increases, increases
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