Digital Communication Questions and Answers
Q1.
Which can be used as an intermediate device in between transmitter entity and receiver entity?
Answer :
1. IP router
2. Microwave router
3. Telephone switch
Q2.
How error detection and correction is done?
Answer :
By adding redundancy bits
Q3.
ISDN is a
Answer :
Packet switched & Circuit switched telephone network
Q4.
T interface is the serial interface between
Answer :
Computing device and terminal adapter
Q5.
Analog source coding method are
Answer :
1. Temporal waveform coding
2. Spectral waveform coding
3. Model based coding
Q6.
In poisson distribution mean is ______ variance.
Answer :
Equal to
Q7.
The time required to transmit frame depends on
Answer :
Frame size & Channel capacity
Q8.
Which uses UDP?
Answer :
1. Echo
2. Time
3. Domain name server
Q9.
Entities also does
Answer :
1. Error correction
2. A/D
3. D/A
Q10.
In transmission media, the symbol type is generally
Answer :
Analog
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