Multiple choice technology programming languages

The main function of REXX is to pass commands to

  1. TSO

  2. TSO/ISPF Dialog

  3. ISREDIT

  4. All of the above
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D Correct answer
Explanation

REXX's main function is to serve as an interface between applications and various operating system environments. It can pass commands to TSO (Time Sharing Option), TSO/ISPF Dialog Manager, and ISREDIT (the editor), making it versatile for mainframe interactions.

AI explanation

REXX on mainframe systems is a scripting language whose primary job is to issue commands to the environments it runs under — TSO itself, the TSO/ISPF dialog manager, and the ISREDIT editor macro interface — so 'All of the above' correctly reflects that REXX interacts with all of these, not just one.

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