Class, MSG Class parameter in JCL

Class parameter in JCL:
 
    The jcl job cart contain two types of parameters one are positional parameter and
     another are key word parameter. in these positional parameters are mandatory and
    key word parameters are optional.

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   what class parameter in jcl, how class parameter give in job card in jcl

  Class parameter is one of the key word parameter in jcl. the class parameter is used to
  catagarize the job based on duration of time i.e how much time that job using
  cpu utilization. this is optional keyword. this could given at job level.

MSG Class parameter in JCL:

  jcl interview questions and answers for what is Msg class parameter in jcl, 
   how MSgclass parameter give in job card in jcl.

  Msg class parameter is a key word parameter in jcl. the MSG class parameter is 
  used to display the status of the job to specified destination. in MSG class we can 
  give A-Z, 0-9. this is optional. we can give this at job level.


  The possible Destinations are 1) TSO
                                               2) Spool
                                               3) printer
                                               4) another system.