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CICS 面试题与答案

问题 16. Explain the difference between a transient data queue and a temporary storage queue in CICS.

Transient data queues hold data within a task and are deleted when the task ends. Temporary storage queues persist data even after the task terminates.

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问题 17. What is the CEMT transaction used for in CICS?

CEMT (CICS Execution Management Transaction) is used for monitoring and managing CICS resources, transactions, and tasks during runtime.

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问题 18. Explain the purpose of the COMMAREA in a CICS program.

The COMMAREA (Communication Area) is a reserved area for passing data between cooperating programs in a CICS transaction.

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问题 19. What is the significance of the EXEC CICS RETURN command?

EXEC CICS RETURN is used to explicitly terminate a CICS program and return control to the calling program or transaction.

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问题 20. How can you handle deadlock situations in CICS?

Deadlocks can be handled by defining proper timeouts, using SYNCPOINT and HANDLE CONDITION, or implementing deadlock detection and resolution mechanisms.

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