Multiple choice technology mainframe

The datasets that are to be compared must satisfy which of the following conditions?

  1. Both the datasets must have same block size

  2. Both the datasets must have same record length

  3. Both the datasets must have same block size and record length

  4. No condition is required
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B Correct answer
Explanation

When comparing datasets with utilities like IEBCOMPR, both datasets must have the same record length (LRECL) for a valid comparison. The block size (BLKSIZE) can differ, but the logical record structure must match for byte-by-byte comparison.

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