Multiple choice technology mainframe

SMALLEST INFORMATION THAT DL/I CAN FETCH, HANDLE?

  1. SEGMENT, FIELD

  2. FIELD, SEGMENT

  3. ROOT,SEGMENT

  4. FIELD , ROOT
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A Correct answer
Explanation

In DL/I (Data Language/I), which is the data manipulation language for IMS databases, the segment is the smallest unit of data that can be retrieved or stored. Fields exist within segments but are not independently addressable by DL/I calls - you always work with entire segments. Therefore, 'SEGMENT, FIELD' correctly identifies the hierarchical relationship where segment is the smallest fetchable unit and field is within it.

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