Digital Communication Questions and Answers, Set 75

Digital Communication Questions and Answers

Q1. 

For hybrid systems the minimum required processing gain is

Answer :   

17db

Q2. 

The system which has insufficient information available to crypt-analyst is

Answer :   

One-time pad & Unconditionally secure

Q3. 

In Vigenere method ______ is provided.

Answer :   

Priming key & Feedback

Q4. 

The maximum number of message bits contained in each character is called as

Answer :   

Absolute rate

Q5. 

In CDMA ______ frequency reuse is possible.

Answer :   

100%

Q6. 

Which type of channel does the forward link contain?

Answer :   

1. Paging

2. Pilot

3. Traffic

Q7. 

How many channels are transmitted in the forward and reverse direction?

Answer :   

64,1

Q8. 

Tracking maintains the possible waveform ______ alignment using a feedback loop.

Answer :   

Fine

Q9. 

Matched filter does ______ search.

Answer :   

Serial

Q10. 

The processing gain is given as

Answer :   

Wss/R

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