Question 1

What type of signal represents data using continuous values?

Accepted Answer

Analog signal

Answer

Digital signal

Answer

Binary signal

Answer

Discrete signal

Question 2

Which of the following is a characteristic of digital signals?

Accepted Answer

They can have only specific discrete values.

Answer

They are always slower than analog signals.

Answer

They represent continuous data.

Answer

They can represent an infinite number of values.

Question 3

What is one major advantage of digital signals over analog signals?

Accepted Answer

They are less prone to noise and distortion.

Answer

They are easier to create than analog signals.

Answer

They can transmit data over longer distances without loss.

Answer

They require less power to transmit.

Question 4

What type of signal is used in CDs and DVDs to store music and video?

Accepted Answer

Digital signal

Answer

Electrical signal

Answer

Analog signal

Answer

Wave signal

Question 5

Which of the following best describes an analog signal?

Accepted Answer

It is a continuous wave that can take any value.

Answer

It consists of only two values.

Answer

It can only be represented in binary format.

Answer

It is always less accurate than digital signals.

Question 6

What is a main disadvantage of analog signals?

Accepted Answer

They can degrade over distance and are susceptible to interference.

Answer

They can only represent integer values.

Answer

They are simpler to process than digital signals.

Answer

They require more power to transmit than digital signals.

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