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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.
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What does "odd parity" require for each transmitted unit (e.g., byte)?
Which of these is an advantage of using CRC over a simple checksum?
If a parity check finds a mismatch, which of these is NOT a typical next step?
Which statement best describes the primary purpose of error detection methods?
Which method is best at detecting burst errors (a group of consecutive flipped bits)?
Why might a system use checksum instead of CRC?
When using two-dimensional parity and a single bit is flipped in a block, what can the receiver do?
In the parity-byte example (parity for each column), the parity byte bit for a column is 1 if:
What does the receiver typically do if CRC indicates an error in a packet?
Which method is most suitable when error correction at the receiver is required without retransmissions (e.g., in real-time audio)?
Which factor increases the probability that simple parity will miss an error?