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Methods Of Error Detection (GCSE Computing)
The following is a GCSE Computing test covering 'Methods Of Error Detection' from the broader topic 2. Data Transmission. The test is geared towards the CAMBRIGE-IGCSE exam board style syllabus.Incorrect: 0
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What is a checksum in the context of data transmission?
Which of these is a limitation of a single parity bit per byte?
Which statement correctly describes the trade-off when adding stronger error-detection bits?
What does two-dimensional (block) parity combine?
When using two-dimensional parity and a single bit is flipped in a block, what can the receiver do?
Why might a streaming video service prefer lightweight error-detection with forward error correction over ARQ retransmission?
Which method adds one extra bit to each byte so the number of 1 bits is odd or even to detect single-bit errors?
Which statement best describes the primary purpose of error detection methods?
Which method is most suitable when error correction at the receiver is required without retransmissions (e.g., in real-time audio)?
Which method would commonly be used in network frames (Ethernet) to detect errors?
What is the role of an acknowledgement (ACK) in reliable transmission?
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