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Welcome to the Channel Coding MCQs Page

Dive deep into the fascinating world of Channel Coding with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Channel Coding, a crucial aspect of Digital Communication. In this section, you will encounter a diverse range of MCQs that cover various aspects of Channel Coding, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Digital Communication.

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Check out the MCQs below to embark on an enriching journey through Channel Coding. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Digital Communication.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Channel Coding. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Channel Coding MCQs | Page 7 of 23

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Q61.
The number of k bit shift over which a single information bit influences the encoder output is given by

a.

Code rate

b.

Constraint length

c.

Code length

d.

Code weight

Discuss
Answer: (b).Constraint length
Q62.
The method used for representing convolution encoder are

a.

Connection pictorial

b.

State diagram

c.

Tree diagram

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q63.
Periodic truncation is done by

a.

Appending zero to end of the input data sequence

b.

Appending zero to the beginning of the input data sequence

c.

Appending one’s to end of the data sequence

d.

Appending one’s to beginning of the data sequence

Discuss
Answer: (a).Appending zero to end of the input data sequence
Q64.
Finite state machines have

a.

Past memories also

b.

Only present and future memories

c.

Only future memories

d.

Only present memories

Discuss
Answer: (a).Past memories also
Q65.
How many number of transitions can be made at each bit time?

a.

One

b.

Two

c.

Three

d.

Half

Discuss
Answer: (b).Two
Q66.
In trellis diagram, the number of nodes ______ at successive branching.

a.

Increases by 1

b.

Doubles

c.

Triples

d.

None of the mentioned

Discuss
Answer: (b).Doubles
Q67.
Example for convolution encoder state diagram is

a.

Tree diagram

b.

Trellis diagram

c.

Tree & Trellis diagram

d.

None of the mentioned

Discuss
Answer: (c).Tree & Trellis diagram
Q68.
In maximum likelihood decoding technique, the likelihood function compares the

a.

Joint probabilities

b.

Individual probabilities

c.

Conditional probabilities

d.

None of the mentioned

Discuss
Answer: (c).Conditional probabilities
Q69.
In maximum likelihood detector the error probability is

a.

Maximum

b.

Minimum

c.

Zero

d.

None of the mentioned

Discuss
Answer: (b).Minimum
Q70.
For a binary code, the maximum number of possible sequence made up of L branch words is

a.

L²

b.

2L

c.

2L

d.

L/2

Discuss
Answer: (c).2L
Page 7 of 23

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