Multiple choice technology mainframe EIBCPOSN, EIBRESP, EIBRSRCE fields are available in DFHBMSCA copybook DFHEIBLK copy book SQLCA None of the above Reveal answer Fill a bubble to check yourself B Correct answer Explanation In CICS programming, fields like EIBCPOSN, EIBRESP, and EIBRSRCE are part of the Execute Interface Block, which is defined by the DFHEIBLK copybook.