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Welcome to the Physical Layer MCQs Page

Dive deep into the fascinating world of Physical Layer with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Physical Layer, a crucial aspect of Networking. In this section, you will encounter a diverse range of MCQs that cover various aspects of Physical Layer, 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 Networking.

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Check out the MCQs below to embark on an enriching journey through Physical Layer. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Networking.

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

Physical Layer MCQs | Page 22 of 24

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Q211.
In real life, we cannot have a

a.

Noisy Channel

b.

Noiseless channel

c.

Bandwidth of channel

d.

Frequency of channel

Discuss
Answer: (b).Noiseless channel
Q212.
A transmission media can have signal impairment because of

a.

Noise

b.

Attenuation

c.

distortion

d.

All of the above

Discuss
Answer: (d).All of the above
Q213.
The bandwidth of a composite signal is the difference between the highest and

a.

zero frequency

b.

lowest frequencies

c.

two Parallel frequencies

d.

None of Above

Discuss
Answer: (b).lowest frequencies
Q214.
The relationship between amplitude and frequency can be represented by

a.

frequency-domain plot.

b.

Time-domain plot.

c.

Phase Domain Plot

d.

Amplitude domain Plot

Discuss
Answer: (a).frequency-domain plot.
Q215.
Frequency is expressed in

a.

Second

b.

Nanosecond

c.

Hertz

d.

Megahertz

Discuss
Answer: (c).Hertz
Q216.
Given the frequency 24Hz the corresponding period would be

a.

87.9ms

b.

41.7ms

c.

90ms

d.

12ms

Discuss
Answer: (b).41.7ms
Q217.
The power in our house can be represented by

a.

sine wave with a peak amplitude

b.

sine wave with amplitude

c.

sine wave with phase

d.

sine wave with frequency

Discuss
Answer: (a).sine wave with a peak amplitude
Q218.
In induced noise, the impairment is created by sources like

a.

Motor & appliances

b.

Power lines

c.

the sending and receiving antenna

d.

Motion of electrons in wire

Discuss
Answer: (a).Motor & appliances
Q219.
Data to be transmitted must be transformed into

a.

Electronic signal

b.

Magnetic pulses

c.

Radiations

d.

Electromagnetic signals

Discuss
Answer: (d).Electromagnetic signals
Q220.
SNR stands for

a.

Shannon Noise ratio

b.

Shannon Noise Relation

c.

Signal Noise ratio

d.

Signal Noise Relation

Discuss
Answer: (c).Signal Noise ratio
Page 22 of 24

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