Multiple choice technology mainframe

Internal SORT and MERGE using JCL is done by

  1. SSRANGE

  2. COBOL COMPILER

  3. SYSTEM

  4. DFSORT
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

DFSORT is IBM's mainframe sort/merge utility that handles internal SORT and MERGE operations in JCL. It's a specialized high-performance sort product. SSRANGE is a COBOL compiler option for subscript checking, COBOL COMPILER compiles programs but doesn't perform sorts, and SYSTEM is too generic - the actual work is done by DFSMS utilities like DFSORT.

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