Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q511: Information in a digital signal can be encoded using _______ and _______ voltages.
- A: Positive, zero
- B: Negative, positive
- C: Zero, positive
- D: High, low
View Answer
A
Q512: A digital signal can represent a 1 using _______ voltage and a 0 using _______ voltage.
- A: Positive, zero
- B: Negative, positive
- C: Zero, positive
- D: High, low
View Answer
A
Q513: Fill in the blank: A digital signal can have more than _______ levels, enabling the transmission of more than one bit per level.
- A: Two
- B: Three
- C: One
- D: Four
View Answer
A
Q514: Information can be represented in a digital signal by encoding a 1 as _______ and a 0 as _______ voltage.
- A: Positive, zero
- B: Negative, positive
- C: Zero, positive
- D: High, low
View Answer
A
Q515: A digital signal’s representation of information can involve more than two levels to send _______ per level.
- A: One bit
- B: Two bits
- C: Three bits
- D: Multiple bits
View Answer
D
Q516: The encoding of a digital signal's information can be achieved using _______ levels of voltage.
- A: Discrete
- B: Continuous
- C: Infinite
- D: Analog
View Answer
A
Q517: Digital signals allow the transmission of multiple bits using _______ voltage levels.
- A: More than two
- B: Exactly two
- C: Only one
- D: Unlimited
View Answer
A
Q518: A digital signal is typically used in applications where information is encoded by using _______ voltage levels.
- A: Discrete
- B: Continuous
- C: Infinite
- D: Analog
View Answer
A
Q519: Fill in the blank: A 1 in a digital signal can be encoded as a _______ voltage, and a 0 can be encoded as a _______ voltage.
- A: Positive, zero
- B: Negative, positive
- C: Zero, positive
- D: High, low
View Answer
A
Q520: In digital signal representation, more than two voltage levels allow the transmission of _______ per level.
- A: More than one bit
- B: One bit
- C: No bits
- D: Two bits
View Answer
A