Hamming Code Multiple choice Questions and Answers (MCQs)

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Hamming Code Multiple choice Questions and Answers (MCQs)

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Question 1 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
The most common hamming codes are a generalized version of?
A
Hamming(7, 4) code
B
Hamming(8, 4) code
C
Hamming(6, 3) code
D
Hamming(5, 7) code
Question 1 Explanation: 
The most common hamming codes generalize to form hamming(7, 4) code. It encodes four bits of data into seven bits by adding three parity bits.

Question 2 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
What is the minimal Hamming distance between any two correct codewords?
A
1
B
2
C
3
D
4
Question 2 Explanation: 
Since we use a generalized version of Hamming(7, 4) code, the minimal hamming distance is 3. It cannot correct burst errors.

Question 3 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Why do we require hamming codes?
A
Error correction
B
Encryption only
C
Decryption
D
Bit stuffing
Question 3 Explanation: 
Hamming codes are used for the purpose of error detection and correction. It is also used for channel encoding and decoding. They are linear-error correcting codes.

Question 4 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Hamming codes can be used for both single-bit error and burst error detection and correction.
A
True
B
False
Question 4 Explanation: 
Hamming bits are suitable only for single-bit error detection and correction and two bit error detection. It is very unlikely to detect burst errors.

Question 5 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Who invented Hamming codes?
A
Richard Hamming
B
Ross Hamming
C
Shannon
D
Huffman
Question 5 Explanation: 
Richard W. Hamming invented hamming codes in Bell Telephone Laboratory to minimize the errors in punched card readers. Huffman invented huffman codes. Shannon invented Shannon-Fanno codes.

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