Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2091: Which of the following is an example of a CRC code format?
- A: C(7,4)
- B: C(5,5)
- C: C(10,11)
- D: C(2,6)
View Answer
A
Q2092: What is the polynomial used in CRC used for?
- A: Encryption
- B: Data compression
- C: Error checking
- D: Bit reversal
View Answer
C
Q2093: Fill in the blank: CRC is widely used in _______ protocols.
- A: networking
- B: image processing
- C: machine learning
- D: speech recognition
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A
Q2094: A key advantage of CRC is its ability to detect _______ with high accuracy.
- A: parity errors
- B: logical flaws
- C: burst errors
- D: programming bugs
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C
Q2095: Which component is essential in CRC hardware implementation?
- A: NAND gate
- B: Shift register
- C: Buffer
- D: Flip-flop
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B
Q2096: Which of the following is NOT a type of error CRC can detect?
- A: Single-bit errors
- B: Double-bit errors
- C: Odd number of errors
- D: Errors in encrypted data
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D
Q2097: Fill in the blank: The polynomial in CRC acts like a _______ over the data bits.
- A: multiplier
- B: filter
- C: divisor
- D: decoder
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C
Q2098: What does a C(7,4) CRC code imply about the number of parity bits?
- A: 1
- B: 2
- C: 3
- D: 4
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C
Q2099: What type of division is used in CRC encoding?
- A: Binary division using XOR
- B: Decimal division
- C: Modular arithmetic division
- D: Bitwise AND
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A
Q2100: Fill in the blank: CRC can detect errors with a high probability when _______.
- A: error pattern is fixed
- B: data rate is low
- C: noise is predictable
- D: errors are burst or random
View Answer
D