JCL
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Q: Explain DD SYSOUT statement

Answer:
SYSOUT=class routes output to JES spool. SYSOUT=* uses MSGCLASS from JOB. SYSOUT=A specific class. Additional: COPIES=2, DEST=node.userid, FCB=fcb-name. Held output: HOLD=YES. OUTPUT statement for complex options.
CICS
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Q: What is EXEC CICS SPOOLOPEN?

Answer:
SPOOLOPEN accesses JES spool. SPOOLREAD/SPOOLWRITE for data. SPOOLCLOSE ends. Process job output. Modern batch integration. Requires authorization.