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Q:

How do you check the syntax of a JCL without running it?

Answer

TYPERUN=SCAN on the JOB card or use JSCAN.


TYPERUN=HOLD on the job card.


it is used for syntatical checks and direct job to spool and hold it.

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Subject: Mainframe Interview

Q:

What are the processing modes available in IMS DB?

Answer

Batch DL/I


MPP Mode - (Message Processing Program)


BMP Mode - (Batch Message Processing)

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Q:

How can we distinguish between an online and batch program in IMS environment?

Answer

If in application program IO-PCB is there then it is a online program. In ENTRY statement IO-PCB must be listed first and then DB-PCB.

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Q:

Assuming that the DEFINE JCL is not available, how do you get info about a VSAM files organisation?

Answer

Use the LISTCAT command.

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Q:

During processing of a VSAM file, some system error occurs and it is subsequently unusable What do you do?

Answer

Run VERIFY.

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Q:

What is the meaning of VSAM RETURN-CODE 28?

Answer

Out of space condition is raised.

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Q:

What is the meaning of Copy IDMS Subschema-Binds?

Answer

It generates a bind run-unit and binds all the records for the sub-schema the program is referencing.

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Subject: Mainframe Interview

Q:

Is there a application program coding difference between local and central version mode in IDMS?

Answer

No. The mode is specified via the SYSCTL DD card in the JCL.

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Subject: Mainframe Interview