Multiple choice technology mainframe

The format of an I/O area with control characters for the fixed length record is

  1. the data begins in byte 1

  2. the data begins in byte 0

  3. control character in byte 0 and data begins in byte 1

  4. control character is specified at the end
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C Correct answer
Explanation

For fixed-length records with control characters, byte 0 typically holds the control character (flag/status), and the actual data begins at byte 1. This separation allows metadata (control info) to be distinguished from the payload (data) without delimiters within the data itself.

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