Question 1

Which is more efficient method?

Accepted Answer

A) encoding each symbol of a block 
B) encoding block of symbols 
C) encoding each symbol of a block & encoding block of symbols 
D) none of the mentioned 
A) encoding each symbol of a block 
B) encoding block of symbols 
C) encoding each symbol of a block & encoding block of symbols 
D) none of the mentioned B

Question 2

Coherent PSK and non coherent orthogonal FSK have a difference of_________   in PB.

Accepted Answer

A) 1db 
B) 3db 
C) 4db 
D) 6db 
A) 1db 
B) 3db 
C) 4db 
D) 6db C

Question 3

Low frequency noise is_________

Accepted Answer

A) flicker noise 
B) shot noise 
C) thermal noise 
D) partition noise 
A) flicker noise 
B) shot noise 
C) thermal noise 
D) partition noise A

Question 4

Which reduces the size of the data?

Accepted Answer

A) source coding 
B) channel coding 
C) source & channel coding 
D) none of the mentioned 
A) source coding 
B) channel coding 
C) source & channel coding 
D) none of the mentioned

Question 5

What is the role of channel in communication system?

Accepted Answer

A) acts as a medium to send message signals from transmitter to receiver 
B) converts one form of signal to other 
C) allows mixing of signals 
D) helps to extract original signal from incoming signal 
A) acts as a medium to send message signals from transmitter to receiver 
B) converts one form of signal to other 
C) allows mixing of signals 
D) helps to extract original signal from incoming signal

Question 6

Relationship between amplitude and frequency is represented by_________

Accepted Answer

A) time-domain plot 
B) phase-domain plot 
C) frequency-domain plot 
D) amplitude-domain plot 
A) time-domain plot 
B) phase-domain plot 
C) frequency-domain plot 
D) amplitude-domain plot

Question 7

The unit of average mutual information is

Accepted Answer

A) bits 
B) bytes 
C) bits per symbol 
D) bytes per symbol 
A) bits 
B) bytes 
C) bits per symbol 
D) bytes per symbol

Question 8

Entropy is the measure of

Accepted Answer

A) amount of information at the output 
B) amount of information that can be transmitted 
C) number of error bits from total number of bits 
D) none of the mentioned 
A) amount of information at the output 
B) amount of information that can be transmitted 
C) number of error bits from total number of bits 
D) none of the mentioned

Question 9

What is the running time of the Huffman algorithm, if its implementation of the priority queue is done using linked lists?

Accepted Answer

A) o(c) 
B) o(log c) 
C) o(c log c) 
D) o(c2) 
A) o(c) 
B) o(log c) 
C) o(c log c) 
D) o(c2)

Question 10

The event with minimum probability has least number of bits.

Accepted Answer

A) True 
 B)False

Question 11

The method of converting a word to stream of bits is called as

Accepted Answer

A) binary coding 
B) source coding 
C) bit coding 
D) cipher coding 
A) binary coding 
B) source coding 
C) bit coding 
D) cipher coding

Question 12

When X and Y are statistically independent, then I (x,y) is

Accepted Answer

A) 1 
B) 0 
C) ln 2 
D) cannot be determined 
A) 1 
B) 0 
C) ln 2 
D) cannot be determined

Question 13

A rate distortion function is a

Accepted Answer

A) concave function 
B) convex function 
C) increasing function 
D) none of the mentioned 
A) concave function 
B) convex function 
C) increasing function 
D) none of the mentioned

Question 14

How many printable characters does the ASCII character set consists of?

Accepted Answer

A) 120 
B) 128 
C) 100 
D) 98 
A) 120 
B) 128 
C) 100 
D) 98

Question 15

Which coding method uses entropy coding?

Accepted Answer

A) lossless coding 
B) lossy coding 
C) lossless & lossy coding 
D) none of the mentioned 
A) lossless coding 
B) lossy coding 
C) lossless & lossy coding 
D) none of the mentioned

Question 16

Noise is added to a signal_________

Accepted Answer

A) in the channel 
B) at receiving antenna 
C) at transmitting antenna 
D) during regeneration of information 
A) in the channel 
B) at receiving antenna 
C) at transmitting antenna 
D) during regeneration of information

Question 17

While recovering signal, which gets attenuated more?

Accepted Answer

A) low frequency component 
B) high frequency component 
C) low & high frequency component 
D) none of the mentioned 
A) low frequency component 
B) high frequency component 
C) low & high frequency component 
D) none of the mentioned

Question 18

When the base of the logarithm is 2, then the unit of measure of information is

Accepted Answer

A) bits 
B) bytes 
C) nats 
D) none of the mentioned 
A) bits 
B) bytes 
C) nats 
D) none of the mentioned

Question 19

What is the running time of the Huffman encoding algorithm?

Accepted Answer

A) o(c) 
B) o(log c) 
C) o(c log c) 
D) o( n log c) 
A) o(c) 
B) o(log c) 
C) o(c log c) 
D) o( n log c)

Question 20

Sum of a periodic and aperiodic signal always be an aperiodic signal.

Accepted Answer

A) True 
 B)False

Which is more efficient method?

Coherent PSK and non coherent orthogonal FSK have a difference of_________ in PB.

Low frequency noise is_________

Which reduces the size of the data?

What is the role of channel in communication system?

Relationship between amplitude and frequency is represented by_________

The unit of average mutual information is

Entropy is the measure of

What is the running time of the Huffman algorithm, if its implementation of the priority queue is done using linked lists?

The event with minimum probability has least number of bits.

The method of converting a word to stream of bits is called as

When X and Y are statistically independent, then I (x,y) is

A rate distortion function is a

How many printable characters does the ASCII character set consists of?

Which coding method uses entropy coding?

Noise is added to a signal_________

While recovering signal, which gets attenuated more?

When the base of the logarithm is 2, then the unit of measure of information is

What is the running time of the Huffman encoding algorithm?

Sum of a periodic and aperiodic signal always be an aperiodic signal.

Modulation and Demodulation Techniques

Information Theory and Communication Techniques

Waveform Logic, Pcm Encoding, Vocoder Analysis, and Antenna Radiations

Microwave Communication and Modulation

M-Ary Signalling and Pulse Shaping Techniques

Signal Filtering and Equalization Techniques

Channel Coding and Error Correction Techniques

Algorithms and Techniques for Communication System Security and Error Correction

Modulation Schemes and Access Techniques for Spread Spectrum Systems

Digital and Analog Telecommunications Standards

Filters

Exam 7: Information Theory and Coding Techniques

Which is more efficient method?

Coherent PSK and non coherent orthogonal FSK have a difference of_________ in PB.

Low frequency noise is_________

Which reduces the size of the data?

What is the role of channel in communication system?

Relationship between amplitude and frequency is represented by_________

The unit of average mutual information is

Entropy is the measure of

What is the running time of the Huffman algorithm, if its implementation of the priority queue is done using linked lists?

The event with minimum probability has least number of bits.

The method of converting a word to stream of bits is called as

When X and Y are statistically independent, then I (x,y) is

A rate distortion function is a

How many printable characters does the ASCII character set consists of?

Which coding method uses entropy coding?

Noise is added to a signal_________

While recovering signal, which gets attenuated more?

When the base of the logarithm is 2, then the unit of measure of information is

What is the running time of the Huffman encoding algorithm?

Sum of a periodic and aperiodic signal always be an aperiodic signal.

Modulation and Demodulation Techniques

Information Theory and Communication Techniques

Waveform Logic, Pcm Encoding, Vocoder Analysis, and Antenna Radiations

Microwave Communication and Modulation

M-Ary Signalling and Pulse Shaping Techniques

Signal Filtering and Equalization Techniques

Channel Coding and Error Correction Techniques

Algorithms and Techniques for Communication System Security and Error Correction

Modulation Schemes and Access Techniques for Spread Spectrum Systems

Digital and Analog Telecommunications Standards

Filters