Multiple choice technology operating systems

Which method do SCSI-1 and SCSI-2 use for error detection

  1. CRC

  2. Parity

  3. Hash Code

  4. None
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B Correct answer
Explanation

Early SCSI implementations (SCSI-1 and SCSI-2) use a simple single-bit parity check (even or odd) on the 8-bit or 16-bit parallel data bus for error detection. Cyclic Redundancy Check (CRC) was introduced later in the SCSI-3 standard to handle higher speeds. Parity is the correct traditional method.

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