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Quiz No. 3 MEXE 3101

Authored by Galeleo Mendoza

Engineering

University

Quiz No. 3 MEXE 3101
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20 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which of the following is true about the difference between data and signals?

Data and signals are identical concepts in communication.

Data is the raw entity; signals are the transmission form of data.

Signals exist only in digital form, while data can be both analog and digital.

Data always requires analog signals to be transmitted.

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which type of signal is more resilient to noise but requires more bandwidth?

Analog signal

Digital signal

Composite signal

Periodic signal

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

An analog sine wave is often used in communication theory because:

It has infinite bandwidth.

It is the simplest form of a periodic signal.

It requires no medium for propagation.

It can represent digital bits directly.

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which of the following parameters of a sine wave determines its energy level in transmission?

Frequency

Phase

Amplitude

Spectrum

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which of the following best describes a composite signal?

A signal with only one frequency component

A signal made by digital-to-analog conversion only

A signal formed by multiple sine waves combined

A digital waveform with infinite frequency

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

The spectrum of a signal refers to:

The physical medium that carries the signal

The range of frequencies that compose the signal

The voltage levels used in digital signaling

The number of cycles per second

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

In communication, the bandwidth of a medium is:

The maximum data rate achievable

The frequency range the medium can pass without significant loss

The number of voltage levels supported

The number of cycles completed per second

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