To answer this question, you need to understand how job execution and CPU time restrictions work.
Option A) Yes - This option is correct. An individual step can be restricted from using all the job's allowed CPU time. In mainframe environments, it is possible to set CPU time limits for individual steps within a job. This can be done using the TIME parameter in the JCL (Job Control Language) or by using system commands during job execution.
Option B) No - This option is incorrect. An individual step can indeed be restricted from using all the job's allowed CPU time.
Option C) Only in catalogued procedures - This option is incorrect. The ability to restrict CPU time is not limited to catalogued procedures. It can be applied to any individual step within a job.
Option D) Through the STEPTIME parameter - This option is incorrect. Although the STEPTIME parameter can be used to specify the maximum time that a step is allowed to run, it does not directly restrict the CPU time usage of the step.
The correct answer is A) Yes. An individual step can be restricted from using all the job's allowed CPU time by setting CPU time limits for that particular step.