Multiple choice technology mainframe

Which copybook contains the definition about the AID keys?

  1. DFHEIBLK

  2. DFHAID

  3. DFHBMSCA

  4. DFHKEYS
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B Correct answer
Explanation

DFHAID is the CICS copybook that defines constants for attention identifier (AID) keys like PF1, ENTER, CLEAR, etc. DFHEIBLK defines the EIB structure itself. DFHBMSCA contains basic mapping support constants, and DFHKEYS is not a standard CICS copybook.

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