Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1921: What does a single-bit error mean?
- A: A single bit in a data unit changes from 1 to 0 or 0 to 1
- B: Two or more bits in the data unit change
- C: No bits in the data unit change
- D: All bits in the data unit change
View Answer
A
Q1922: Which error is characterized by the alteration of multiple bits in a data unit?
- A: Single-bit error
- B: Burst error
- C: Parity error
- D: Checksum error
View Answer
B
Q1923: Fill in the blank: In a burst error, the bits that change in a data unit are typically grouped together in _______.
- A: single location
- B: non-consecutive locations
- C: large packets
- D: None of the above
View Answer
A
Q1924: What is the main difference between a single-bit error and a burst error?
- A: Single-bit error changes only one bit, while a burst error changes two or more bits
- B: Single-bit error changes multiple bits, while a burst error changes only one bit
- C: There is no difference
- D: Single-bit error is related to larger data units
View Answer
A
Q1925: What type of error occurs when one bit of a data unit changes from 1 to 0 or 0 to 1?
- A: Single-bit error
- B: Burst error
- C: Checksum error
- D: Network error
View Answer
A
Q1926: Fill in the blank: A burst error is caused by _______ bits changing in a data unit.
- A: one
- B: two
- C: multiple
- D: none
View Answer
C
Q1927: Which of the following best defines a single-bit error?
- A: An error where only one bit of a data unit is changed
- B: An error where multiple bits in a data unit change
- C: An error that occurs due to a protocol failure
- D: An error that involves noise in the channel
View Answer
A
Q1928: Fill in the blank: A burst error affects _______ bits in a data unit, typically caused by interference.
- A: one
- B: two
- C: five
- D: ten
View Answer
B
Q1929: In data transmission, what does a burst error indicate?
- A: Multiple bits in a data unit have changed due to interference
- B: Only one bit in a data unit has changed
- C: No bits have been altered
- D: The signal has been lost
View Answer
A
Q1930: What is the primary cause of both single-bit and burst errors in data transmission?
- A: Interference
- B: Encryption
- C: Compression
- D: Protocol errors
View Answer
A