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Welcome to the Modulation and Coding Trade off MCQs Page

Dive deep into the fascinating world of Modulation and Coding Trade off with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Modulation and Coding Trade off, a crucial aspect of Digital Communication. In this section, you will encounter a diverse range of MCQs that cover various aspects of Modulation and Coding Trade off, 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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Modulation and Coding Trade off MCQs | Page 4 of 13

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Q31.
The super group is made up of

a.

Five groups

b.

Sixty channels

c.

Five groups & Sixty channels

d.

None of the mentioned

Discuss
Answer: (c).Five groups & Sixty channels
Q32.
The orbital period of communication satellites is _______ as that of earth’s rotational period.

a.

Same

b.

Greater

c.

Lesser

d.

None of the mentioned

Discuss
Answer: (a).Same
Q33.
Adding improvement to the signal subset choice by starting with the densest possible lattice for the space is called as

a.

Optimum signal constellation boundaries

b.

Higher density lattice structures

c.

Trellis coded modulation

d.

None of the mentioned

Discuss
Answer: (b).Higher density lattice structures
Q34.
Choosing a closely packed signal subset from any regular lattice or array of candidate points is called as

a.

Optimum signal constellation boundaries

b.

Higher density lattice structures

c.

Trellis coded modulation

d.

None of the mentioned

Discuss
Answer: (a).Optimum signal constellation boundaries
Q35.
Trellis coded modulation uses

a.

Non binary method

b.

Uses redundant bits

c.

No expansion of bandwidth

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q36.
In finite state machines, output is predicted using

a.

Past output

b.

Present input

c.

Past output & Present input

d.

None of the mentioned

Discuss
Answer: (c).Past output & Present input
Q37.
In TCM the signals are decoded using

a.

Soft decision decoders

b.

Hard decision decoders

c.

Soft & Hard decision decoders

d.

None of the mentioned

Discuss
Answer: (a).Soft decision decoders
Q38.
Trellis coded modulation scheme

a.

Has memory

b.

Is memory-less

c.

Needs more bandwidth

d.

None of the mentioned

Discuss
Answer: (a).Has memory
Q39.
In TCM channel capacity can be increased.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q40.
Transmission bandwidth depends on

a.

Rate of signalling

b.

Density of signal points

c.

Reduced distance

d.

None of the mentioned

Discuss
Answer: (a).Rate of signalling
Page 4 of 13

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