JCL Interview Questions
Questions Answers Views Company eMail

What is a GDG


4 11012

What is a Generation Data Group (GDG)?

2 6662

How is a GDG base created?

5 18951

What is model dataset label(Model DSCB)?

1 19387

How are GDGs concatenated?

1 10418

How is a new GDG coded?

2 6768

When should DISP=MOD is used?


6 36522

How is a dataset passed from one step to another?


2 10353

How are datasets concatenated?


3 9126

What is the difference between the JOBLIB and the STEPLIB statements?

3 28066

Name some of the JCL statements that are not allowed in procs.?

1 9917

What is primary allocation for a dataset?

4 9455

What is the difference between primary and secondary allocations for a dataset?

8 35017

How many extents are possible for a sequential file ? For a VSAM file ?

2 13887

What does a disposition of (NEW,CATLG,DELETE) mean?

3 11871

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Un-Answered Questions { JCL }

In sms datasets, what is the function of the dd avgrec keyword?


How jcl is used for testing batch programs?


A chkpt is the parameter coded for multi-volume qsam datasets in a dd statement. When a chkpt is coded as chkpt=eov, a checkpoint is written to the dataset specified in the sysckeov statement at the end of each volume of the input/output multi-volume dataset. State whether true or false?


Are there any set of rules for the names of the steps used in a job?


What parameter of the job statement is used to limit the cpu time consumed by the job?


define cond parameter in jcl?


how you will the direct the data to spool using sysout option?


Explain the function of dd disp parameter?


What statement marks the beginning of a job step; assigns a name to the step; identifies the program or catalogued or in-stream procedure to be executed in the step?


Is their any set of rules for dd? Explain.


What is 'mounting' of volumes ? Is there anything that a programmer can do in it ? How to find currently mounted volume ?


What statement marks the end of an in-stream or catalogued procedure?


What is the difference between run mode and addressing mode?


Which dd parameters are required?


What parameter directs the output of the job log dataset?