Multiple choice technology mainframe

Using which copybook can the attribute byte of the symbolic map be modified to supercede the physical map attributes?

  1. DFHBMSCA

  2. DFHEIBLK

  3. DFHAID

  4. DFHCOPY
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A Correct answer
Explanation

DFHBMSCA is the copybook used to modify attribute bytes in the symbolic map. This allows programs to override physical map attributes like field intensity, protection status, and color at runtime. DFHEIBLK is for CICS interface block, DFHAID contains attention identifiers, and DFHCOPY is generic.

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