Digital Communication Questions and Answers
Q1.
In which method, key-stream is generated independently?
Answer :
Synchronous
Q2.
Euler’s totient function is determined by
Answer :
(p-1)(q-1)
Q3.
PGP system uses
Answer :
Private & Public key system
Q4.
Examples of hash functions are
Answer :
MD5 & SHA-1
Q5.
In this Merkle Hellman method same key is used for encryption and decryption.
Answer :
False
Q6.
The decision feedback equalizer has a linear traversal filter which is
Answer :
Feed forward section
Q7.
Decision making needs
Answer :
Priors & Likelihoods
Q8.
Which signal sets are called as equivalent signal sets?
Answer :
Simplex & Bi-orthogonal
Q9.
Diversity technique is applied at
Answer :
Base station & Mobile receiver
Q10.
Uncorrelated fading occurs when
Answer :
Time span is large
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