Digital Communications

Baseband Systems and Signal Transmission through Linear Systems

Question 1
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 2
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 3
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 4
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 5
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 6
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 7
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.
Question 8
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 9
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 10
Marks : +2 | -2
Pass Ratio : 100%
Find the 32-ary waveform for the word ‘HAPPY’.
280856
658082
288056
None of the mentioned
Explanation:
“HAPPY”