Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2011: Which of the following is used to calculate Hamming Distance?
- A: Bitwise XOR operation
- B: Bitwise AND operation
- C: Bitwise OR operation
- D: None of the above
View Answer
A
Q2012: Fill in the blank: To calculate Hamming Distance, you compare each bit of two words and count the number of _______ between the corresponding bits.
- A: errors
- B: differences
- C: identical bits
- D: changes
View Answer
B
Q2013: What is the significance of the Hamming Distance when evaluating error correction methods?
- A: Hamming Distance determines the number of bits that must be changed to correct errors
- B: It determines the length of the codewords
- C: It calculates the total number of valid codewords
- D: None of the above
View Answer
A
Q2014: If two codewords have a Hamming Distance of 3, how many bits would need to be changed to convert one codeword into the other?
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
C
Q2015: What is the Hamming Distance between the following pair of words: 1101 and 1011?
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
B
Q2016: Fill in the blank: In error detection, the Hamming Distance helps to determine how many _______ occurred during transmission.
- A: errors
- B: bits
- C: changes
- D: none of the above
View Answer
A
Q2017: What is the minimum Hamming distance of a code that guarantees the detection of up to 3 errors?
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
B
Q2018: Fill in the blank: The minimum Hamming distance \( d_{\text{min}} \) determines the _______ between all possible pairs of codewords.
- A: smallest error
- B: highest error
- C: distance
- D: highest similarity
View Answer
C
Q2019: In a code scheme with \( d_{\text{min}} = 4 \), how many errors can be detected?
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
B
Q2020: What does \( d_{\text{min}} = s+1 \) represent in error detection?
- A: The number of bits in the codeword
- B: The minimum Hamming distance
- C: The number of errors that can be corrected
- D: The number of valid codewords
View Answer
B