Digital Communications

Baseband Systems and Signal Transmission through Linear Systems

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Formatting is the process which includes
Pulse code modulation
Sampling
Quantization
All of the mentioned
Explanation:
Formatting is the process in which the source information is converted to digital signals using methods like sampling, pulse code modulation etc.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
Perform the bit stream partitioning and find the 8-ary waveform for the word ‘THINK’.
1204443464
4643444021
1240443464
none of the mentioned
Explanation:
“THINK”
Question 3
Marks : +2 | -2
Pass Ratio : 100%
The process that transforms text into binary digits is called as _______
Binary coding
Data coding
Character coding
Sampling
Explanation:
According to the definition the process of converting textual data to binary digits is called as character coding.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Find the 32-ary waveform for the word ‘THINK’.
514172520
202517415
541172520
None of the mentioned
Explanation:
“THINK”
Question 5
Marks : +2 | -2
Pass Ratio : 100%
The process of data conversion along with formatting the data is called as ______
Formatting
Modulation
Source coding
Amplifying
Explanation:
The process of converting source information to a digital signal and also formatting it is called as source coding.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
For the number of bits, k=1 and number of symbols, M=2 the system is called as
Unary
Binary
Quarternary
None of the mentioned
Explanation:
For k number of bits, the number of symbols are M=2k. For k=1 and M=2 the system is called as binary coding.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Find the 8-ary waveform for the word ‘HAPPY’.
4040020246
0440020246
6420200440
None of the mentioned
Explanation:
“HAPPY”
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Find the 32-ary waveform for the word ‘HAPPY’.
280856
658082
288056
None of the mentioned
Explanation:
“HAPPY”
Question 9
Marks : +2 | -2
Pass Ratio : 100%
What are the characteristics of an ideal transmission line?
Different amplitude
No distortion
Time delay
All of the mentioned
Explanation:
The output from the ideal transmission line has some time delay different amplitude but it should not have distortion it should have the same shape as the input.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Analog information is converted to digital data using
Sampling
Quantization
Coding
All of the mentioned
Explanation:
Textual information, analog information and digital information undergoes different processes before converting to binary or digital data. The method used for converting analog information are the given methods.