Learn the two key commands – CANCEL and FORCE – used to terminate an actively running job on mainframe systems. Understand when and how to apply each command.
Table of Contents
Question
The command for cancellation of job that is executing
A. CANCEL JOBNAME
B. FORCE JOBNAME
C. Both A and B
D. None of the above
Answer
C. Both A and B
Explanation
Both the CANCEL and FORCE commands can be used to cancel a job that is currently executing on a mainframe system.
The CANCEL command is the standard way to terminate a running job. The syntax is:
CANCEL jobname
This will initiate a normal job termination, allowing the job to complete its current processing before ending. CANCEL is generally the preferred and safest way to stop an active job.
The FORCE command provides an immediate cancellation of the specified job. The syntax is:
FORCE jobname
FORCE will abruptly terminate the job without allowing it to finish its current processing or clean up resources. This can potentially lead to incomplete output datasets or other issues. FORCE should only be used when CANCEL is not working or an urgent termination is required.
In summary, both CANCEL jobname and FORCE jobname are valid commands to cancel a currently executing job on a mainframe system, with CANCEL being the default and safer option in most cases. The ability to terminate active jobs is an important skill for mainframe operators and developers.
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