What is the purpose of REGION key word ?
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specifies the amount of space required by a step
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specifies the amount of space required by a job
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both of the above
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none of the above
The REGION parameter in JCL specifies the amount of virtual storage (memory) required for job execution. It can be specified at both the job level (applying to all steps) and at the individual step level (where the step specification overrides the job level). Therefore, it applies to both jobs and steps, making option C correct.
To answer this question, we need to understand the purpose of the REGION keyword in a programming context.
The REGION keyword is used in programming languages, particularly in mainframe systems such as COBOL, to specify the amount of memory space required by a program step or job.
Option A) "Specifies the amount of space required by a step" - This option is correct. The REGION keyword can be used to specify the amount of memory space required by a particular program step.
Option B) "Specifies the amount of space required by a job" - This option is correct. The REGION keyword can also be used to specify the amount of memory space required by an entire job.
Option C) "Both of the above" - This option is correct. The REGION keyword can be used to specify the memory space required by a step and by a job.
Option D) "None of the above" - This option is incorrect. As explained above, the REGION keyword is used to specify the memory space required by a step or job.
Therefore, the correct answer is C) both of the above. This option correctly describes the purpose of the REGION keyword in programming languages.