CICS 面试题与答案
问题 26. Explain the function of the CICS transient data queues.
Transient data queues (TDQ) are used for temporary storage of data within a CICS region and are typically used for communication between tasks.
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问题 27. What is the significance of the RESP field in CICS?
The RESP field in CICS contains the response code returned by the last CICS command, indicating the success or failure of the operation.
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问题 28. How can you handle dynamic memory allocation in CICS?
Dynamic memory allocation in CICS is often handled using commands like GETMAIN and FREEMAIN to allocate and free storage during program execution.
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问题 29. What is the significance of the CICS EXEC Interface Block (EIB)?
The CICS EIB contains information about the current execution environment, including transaction ID, program name, and other system-related details.
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问题 30. Explain the purpose of the XCTL and LINK commands in CICS.
XCTL is used to transfer control to another program or transaction and does not return, while LINK transfers control and returns after execution.
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