Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q741: Which of the following data types can be stored as digital data?
- A: Only text
- B: Only video
- C: Text, pictures, and audio
- D: None of the above
View Answer
C
Q742: Fill in the blank: Digital data stored in computer memory consists of sequences of _______.
- A: Frames
- B: Bytes
- C: Bits
- D: Signals
View Answer
C
Q743: What is required to decode digital signals back to original data?
- A: Line decoding
- B: Line coding
- C: Block coding
- D: None of the above
View Answer
A
Q744: Which of the following is NOT a type of digital data?
- A: Pictures
- B: Audio
- C: Sequences of bits
- D: Sound waves
View Answer
D
Q745: Fill in the blank: ______ is the process of converting a digital signal back into a bit sequence.
- A: Line decoding
- B: Scrambling
- C: Block coding
- D: Pulse coding
View Answer
A
Q746: What is the purpose of converting digital data into digital signals?
- A: Storage
- B: Transmission
- C: Compression
- D: Decompression
View Answer
B
Q747: Fill in the blank: In line coding, each bit in the sequence is represented by a _______.
- A: Signal element
- B: Byte
- C: Frame
- D: Pulse
View Answer
A
Q748: What happens if line coding is not performed in digital transmission?
- A: Data becomes analog
- B: Data cannot be transmitted
- C: Data gets compressed
- D: Data becomes audio
View Answer
B
Q749: Fill in the blank: ______ is an essential component of transmitting digital data over networks.
- A: Line coding
- B: Analog decoding
- C: Modulation
- D: Signal coding
View Answer
A
Q750: How many broad categories can line coding schemes be divided into?
- A: Two
- B: Three
- C: Five
- D: Seven
View Answer
C