Sawaal
  • Home/
  • Searching for HO

 Searching for "HO"

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.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

How do you fix the problem associated with VSAM out of space condition?

Answer

Define new VSAM dataset allocated with more space.


Use IDCAMS to REPRO the old VSAM file to new VSAM dataset.


Use IDCAMS to ALTER / RENAME the old VSAM dataset to DELETE the old VSAM datset.


Use IDCAMS to ALTER / RENAME the new VSAM dataset to the name of the original VSAM dataset.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

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

Answer

Use the LISTCAT command.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

How do you convert flat files to VSAM files?

Answer

Use IDCAMS REPRO to load the flat file into the VSAM file.


 

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

How does IDMS insure data integrity?

Answer

IDMS uses record locks to prevent another run-unit from updating the same record.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

How does IDMS communicate with CICS?

Answer

They communicate via service MVS request calls.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

What guidelines should be followed to write a structured COBOL program ?

Answer

Following guidelines to be following while writing Cobol program:


- Use ? EVALUATE ? statement for constructing cases.


- Use scope terminators for nesting.


- Use in-line Perform statement for writing ?do? constructions.


- Use Test Before and Test After in the Perform statement while writing Do-While statements.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

Q:

How is sign stored in a COMP field?

Answer

It is stored in the most significant bit. Bit is ON if -ve, OFF if +ve.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview