Gce Model Questions Vol1 2021 Computer Studies Question 9
Practice objective / multiple choice question 9 from the 2021 Gce Model Questions Vol1 Computer Studies examination.
A (12, 8) Hamming code uses even parity. The eight data bits are \(D_1 D_2 D_3 D_4 D_5 D_6 D_7 D_8 = 1\,0\,1\,1\,0\,0\,1\,0\). Parity bits are placed at positions 1, 2, 4 and 8. After encoding, the transmitted 12‑bit word has a single‑bit error introduced at position 9. (a) Determine the values of the four parity bits. (b) Using the received word, calculate the syndrome, locate the erroneous bit, correct it, and give the corrected 8‑bit data word. Provide the final corrected data bits as an 8‑bit binary string.
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About This Question
This is Gce Model Questions Vol1 2021 Computer Studies Question 9. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Computer Studies examination.
Difficulty level: Medium .
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