Gce Model Questions Vol1 2023 Computer Studies Question 4
Practice objective / multiple choice question 4 from the 2023 Gce Model Questions Vol1 Computer Studies examination.
An information system uses a \((7,4)\) Hamming code with even parity to protect 4‑bit data blocks. The parity bits are placed at positions 1, 2 and 4 (counting from the left). The original 4‑bit data word is \(1011\). After encoding, the transmitted 7‑bit code word is sent over a noisy channel and received as \(0110111\). Assuming at most one bit error occurred, determine the corrected 4‑bit data word and give its decimal value.
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This is Gce Model Questions Vol1 2023 Computer Studies Question 4. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Computer Studies examination.
Difficulty level: Medium .
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