Multiple choice technology mainframe

A REXX program (or REXX EXEC) called DEMO is stored in the partitioned dataset TBISUSR.REXXCRS.EXEC. Execution is possible...

  1. ... via the TSO command: EXEC 'TBISUSR.REXXCRS.EXEC(DEMO)' EXEC, without any

  2. ... only after allocation of the partitioned dataset TBISUSR.REXXCRS.EXEC to the DD

  3. ... via the TSO command: CALL 'TBISUSR.REXXCRS.EXEC(DEMO)', without any additional

  4. ... only after compilation to COBOL, and via the TSO command:
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A Correct answer
Explanation

In TSO, REXX EXECs stored in partitioned datasets can be executed directly using the EXEC command with the dataset name and member name. The syntax EXEC 'dataset.name(member)' EXEC is correct. No prior DD allocation is required, compilation to COBOL is unnecessary (REXX is interpreted), and CALL is not the correct command for EXECs.

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