Computer Networks Physical layer Mcqs with answers

Networks Physical layer Multiple Choice Questions (MCQ) should be practiced to improve the networking skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

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Computer MCQS

Sciences MCQS

1.
The physical layer is concerned with the movement of _______ over the physical medium.

Programs

Dialogs

Protocols

Bits

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3.
Before data can be transmitted, they must be transformed to ________.

Periodic signals

Electromagnetic signals

Aperiodic signals

Low-frequency sine waves

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5.
The physical layer concerns with

Bit-by-bit delivery

Process to process delivery

Application to application delivery

None of the above

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6.
The physical layer translates logical communication requests from the ______ into hardware specific operations.

Data link layer

Network layer

Trasnport layer

Application layer

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7.
The term ……… describes the position of the waveform relative to time 0.

Frequency

Phase

Phase Shift

Time period

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8.
In a frequency-domain plot, the horizontal axis measures the ________.

Peak amplitude

Frequency

Phase

Slope

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9.
In a time-domain plot, the horizontal axis is a measure of ________.

Signal amplitude

frequency

Phase

Time

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10.
If the bandwidth of a signal is 5 KHz and the lowest frequency is 52 KHz, what is the highest frequency?

5 KHz

10 KHz

47 KHz

57 KHz

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11.
What is the bandwidth of a signal that ranges from 1 MHz to 4 MHz?

4 MHz

1 KHz

3 MHz

None of the above

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13.
Given two sine waves A and B, if the frequency of A is twice that of B, then the period of B is ________ that of A.

One-half

Twice

The same as

Indeterminate from

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14.
A sine wave is ________.

Periodic and continuous

Aperiodic and continuous

Periodic and discrete

Aperiodic and discrete

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15.
If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is ________ V.

2

1

-2

Between -2 and 2

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Engineering MCQS

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