Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1911: What is the primary cause of data transmission errors?
- A: Interference
- B: Encryption
- C: Compression
- D: Protocol errors
View Answer
A
Q1912: Fill in the blank: In a burst error, the number of bits affected is _______ than in a single-bit error.
- A: greater
- B: less
- C: same
- D: none
View Answer
A
Q1913: Which of the following describes a scenario where a data unit undergoes predictable changes during transmission?
- A: Single-bit error
- B: Burst error
- C: No error
- D: Checksum error
View Answer
D
Q1914: What type of error occurs when the signal shape is distorted during data transmission?
- A: Single-bit error
- B: Burst error
- C: Transmission error
- D: Interference error
View Answer
D
Q1915: What does a single-bit error affect in a data unit?
- A: Only one bit
- B: Multiple bits
- C: None of the bits
- D: All the bits
View Answer
A
Q1916: Fill in the blank: A burst error typically affects _______ or more bits in a data unit.
- A: one
- B: two
- C: many
- D: none
View Answer
B
Q1917: Which of the following is NOT a type of transmission error?
- A: Single-bit error
- B: Burst error
- C: Checksum error
- D: Network error
View Answer
D
Q1918: What is a single-bit error?
- A: Only one bit of a data unit is changed from 1 to 0 or 0 to 1
- B: Two or more bits of a data unit are changed
- C: No bit is changed
- D: All bits in a data unit are reversed
View Answer
A
Q1919: Which of the following describes a burst error?
- A: Two or more bits in the data unit are changed from 1 to 0 or 0 to 1
- B: Only one bit in the data unit is changed
- C: No bits in the data unit are affected
- D: All bits in the data unit are inverted
View Answer
A
Q1920: Fill in the blank: A burst error affects _______ or more bits in a data unit.
- A: one
- B: two
- C: five
- D: none
View Answer
B