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ISRO | ISRO CS 2013 | Question 18

  • Last Updated : 07 May, 2018

How many check bits are required for 16 bit data word to detect 2 bit errors and single bit correction using hamming code?
(A) 5
(B) 6
(C) 7
(D) 8


Answer: (B)

Explanation:

For error detection d+1 bits are required
Here, d=2, bits required = 3
For error correction 2d+1 bits are required.
Here, d=1, bits required = 2*1 + 1 = 3
Total bits required = 3 + 3 = 6

So, (B) is the correct option.

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