To answer this question, we need to understand the valid parameters for the TYPRUN command.
The TYPRUN command is used in mainframe systems to display information about a specific job. It allows users to view the output, error messages, and other details related to a job.
Let's go through each option to understand why it is valid or invalid:
Option A) SCAN - This option is a valid parameter for the TYPRUN command. It allows users to scan through the output of a job.
Option B) RUN - This option is not a valid parameter for the TYPRUN command. The correct parameter for running a job is SUBMIT, not TYPRUN.
Option C) COPY - This option is a valid parameter for the TYPRUN command. It allows users to copy the output of a job to another file or location.
Option D) None - This option is not a valid parameter for the TYPRUN command. It does not specify any action to be performed on the job.
Option E) HOLD - This option is a valid parameter for the TYPRUN command. It allows users to put a job on hold and prevent it from running.
The correct answer is Option B) RUN. This option is not a valid parameter for the TYPRUN command. The correct parameter for running a job is SUBMIT, not TYPRUN.