Machine-translated by Google. Questions are authored in English.
Top

Discussion

Job Control Language (JCL) statements are used to

  • A.Read the input from the slow-speed card reader to the high-speed magnetic disk
  • B.Specify, to the operating system, the beginning and end of a job in a batch
  • C.Allocate the CPU to a job
  • D.All of the above

Answer: B

Correct answer: Specify, to the operating system, the beginning and end of a job in a batch

JCL statements bracket and describe a batch job for the operating system: the JOB statement marks its start and gives the accounting information, EXEC statements name the programs to run, and DD statements describe the data sets they use. JCL declares what is wanted; it does not itself move data or allocate the processor.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.