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Wipro Mainframe: How to Immediately Close CICS Region in Mainframe?

By: Author Alex Lim

Posted on  - Last updated:

Categories Exam

Learn the correct command to instantly close a CICS region in mainframe systems. Discover why “F CICS CEMT P SHUT I” is the right syntax to use for immediate CICS shutdown.

Table of Contents

Question

How do you close a CICS region immediately?

A. F CICS CEMT P SHUT
B. F CICS CEMT P SHUT IMMED
C. F CICS CEMT P SHUT I
D. F CICS CEMT SHUT

Answer

To close a CICS region immediately, you should use the command:

C. F CICS CEMT P SHUT I

Explanation

Here’s what each part of this command does:

  • F CICS – Routes the command to the specific CICS region you want to shut down. Replace “CICS” with the actual CICS region jobname.
  • CEMT – Invokes the CICS master terminal transaction that allows you to control and monitor the CICS system.
  • P – Abbreviation for the “PERFORM” keyword, indicating you want to perform an action.
  • SHUT – The shutdown action you are requesting CEMT to perform on the CICS region.
  • I – Abbreviation for “IMMEDIATE”, specifying that you want to shut down CICS immediately, without allowing current tasks to finish processing. This will abruptly terminate all active tasks.

The other command options listed would not immediately shut down CICS:

A. F CICS CEMT P SHUT – This would shut down CICS normally, allowing current tasks to finish processing first. It does not close the region immediately.

B. F CICS CEMT P SHUT IMMED – While this specifies an immediate shutdown, the command syntax is incorrect. “IMMED” is not a valid keyword, just “I” should be used for immediate shutdown.

D. F CICS CEMT SHUT – This is missing the “P” (PERFORM) keyword and would result in a syntax error.

So in summary, to properly close a CICS region immediately without allowing current tasks to complete, the “F CICS CEMT P SHUT I” command should be used. The “I” (IMMEDIATE) keyword is essential for forcing an instant CICS shutdown.

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