CS601 - Data Communication

Question # 1 of 10 ( Start time: 07:29:53 PM ) Total Marks: 1
QAM is the most efficient than _________
Select correct option:

PSK
ASK
FSK
All of the given





Question # 2 of 10 ( Start time: 07:31:22 PM ) Total Marks: 1
The level of signal is always positive in NRZ encoding.
Select correct option:

True
False





Question # 3 of 10 ( Start time: 07:32:50 PM ) Total Marks: 1
Which of the following statement is correct?
Select correct option:

Digital signals are less prone to Noise
Digital signals are highly prone to Noise
Analog Signals are less prone to Noise
Digital signals are not affected by Noise





Question # 4 of 10 ( Start time: 07:33:46 PM ) Total Marks: 1
Variation in Characteristics of Sine Wave for converting digital into analog we need _________.
Select correct option:

Amplitude
Frequency
Phase
Any of these



Question # 5 of 10 ( Start time: 07:34:37 PM ) Total Marks: 1
A sine wave is defined by _______ characteristics.
Select correct option:

2
3
4
5







Question # 6 of 10 ( Start time: 07:35:07 PM ) Total Marks: 1
PSK is susceptible to the noise degradation.
Select correct option:

True
False



Question # 7 of 10 ( Start time: 07:36:20 PM ) Total Marks: 1
In _______________, both peak amplitude and frequency remains constant as the phase changes.
Select correct option:

PSK
QAM
Both PSK & QAM
None of the given




Question # 8 of 10 ( Start time: 07:37:48 PM ) Total Marks: 1
Which of the following is most affected by noise?
Select correct option:

PSK
ASK
FSK
QAM






Question # 9 of 10 ( Start time: 07:38:23 PM ) Total Marks: 1
Frequency of carrier signal is changed according to the amplitude of modulating signal in ______.
Select correct option:

AM
FM
PM
None of above







Question # 10 of 10 ( Start time: 07:39:10 PM ) Total Marks: 1
Encoding digital data into digital signals is called _________
Select correct option:

Analog-to-Digital Conversion
Digital-to-Digital Conversion
Digital-to-Analog Conversion
None of above