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Q: Explain NOTIFY parameter
Answer:
NOTIFY=userid sends message when job completes. On JOB card. Multiple userids: NOTIFY=(USER1,USER2). Notifies success or failure. TSO users get message at terminal. Essential for batch monitoring. Commonly NOTIFY=&SYSUID for submitter.
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Q: Explain CICS regions
Answer:
CICS region is address space. TOR (Terminal Owning) owns terminals. AOR (Application Owning) runs programs. FOR (File Owning) owns files. MRO connects regions. Workload distribution.
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Q: What is EIBTRMID?
Answer:
EIBTRMID contains terminal ID (4 chars). Available in EIB. Identifies user terminal. Used for session management, logging. May be blank for non-terminal tasks.
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Q: What is OVERFLOW condition?
Answer:
OVERFLOW when output exceeds page. During SEND with paging. Handle to manage paging. RESP check. Terminal specific limits. May need to restructure output.
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Q: What is EXEC CICS SEND CONTROL?
Answer:
SEND CONTROL sends control functions. EXEC CICS SEND CONTROL ERASE FREEKB. Clears screen, unlocks keyboard. No map or data. Prepare terminal for next operation.
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Q: How to SEND MAP to terminal?
Answer:
EXEC CICS SEND MAP(mapname) MAPSET(mapsetname) FROM(symbolic-map) ERASE. CURSOR option positions cursor. FREEKB unlocks keyboard. ALARM sounds alarm. MAPONLY sends without data. DATAONLY sends only modified fields.
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Q: What is RECEIVE MAP?
Answer:
EXEC CICS RECEIVE MAP(name) MAPSET(mapset) INTO(symbolic-map). Gets terminal input. Modified fields only (MDT). Check EIBAID for key pressed. MAPFAIL if no data. Symbolic map populated with input.
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Q: What is MRO?
Answer:
MRO (Multi-Region Operation) connects CICS regions. Function shipping sends requests to owning region. Transaction routing sends terminal to AOR. DPL (Distributed Program Link) for remote LINK.
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Q: What is CEMT?
Answer:
CEMT inquires and sets resources. CEMT I TASK shows tasks. CEMT S FILE(name) OPEN opens file. Master terminal transaction. Operational control. I for inquire, S for set.
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Q: What is MAPFAIL condition?
Answer:
MAPFAIL when RECEIVE MAP gets no data. Terminal timeout or clear. Handle: check RESP for DFHRESP(MAPFAIL). May need to resend map or handle timeout.
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Q: Explain CICS RECEIVE without MAP
Answer:
RECEIVE INTO without MAP gets raw terminal data. EXEC CICS RECEIVE INTO(area) LENGTH(len). For non-BMS screens. AID in EIBAID. Raw data stream. Lower level than BMS.
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Q: What is PAGING option?
Answer:
PAGING breaks large output. EXEC CICS SEND MAP PAGING. User navigates pages. Autopaging available. Terminal paging commands. For long reports on screen.
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Q: What is CICS FEPI?
Answer:
FEPI (Front End Programming Interface) connects to external systems. Terminal emulation. Legacy integration. EXEC CICS FEPI commands. Complex configuration.