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Mainframe Interview Questions & Answers

Below we have listed all the Mainframe Interview Questions and answers. Feel free to comment on any Mainframe Interview Questions or answer by the comment feature available on the page.

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Subcategories for Mainframe Interview Questions - The following are sub categories for which Interview Questions are available under this category. Please select the appropriate sub-category:
CICS Interview Questions (607)

COBOL Interview Questions (308)

DB2 Interview Questions (353)

IDMS Interview Questions (223)

IMS Interview Questions (189)

JCL Interview Questions (285)

VSAM Interview Questions (244)

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What is difference between oracle and sqlserver ? View Answer

What are different types of process in jcl? View Answer

What is meant by impact analysis? View Answer

what is the diff between dbrm.lib and loadlib what r they used for View Answer

Where and how to use JCL process(premap and response map)? View Answer

What datasets are archived from disk and how long are they kept? View Answer

How do I know which archived data sets are about to expire? View Answer

What is IAM (Innovation Access Method) and why is it better than VSAM? View Answer

Is it a Mainframe Systems problem or a Network Systems problem? View Answer

What will the PDS utility do for TSO? View Answer

what is the maximum no of characterts that can be passed thru PARM in jcl? View Answer

why do we use S9(4) comp to define the PARM length and not s9(4)comp-3? which is better? View Answer

how can we read the last 1000 records of a file using some sort utility? View Answer

suppose there are 5000 records ina flat file. how can we read files 2000 to 3000 using sort? View Answer

REDEFINE uses the same storage area. What about RENAMES? A variable that renames a group of other variables occupies different storage or same?? View Answer

I have a table with 50 records and if i try to access 100th record what will be the result.?(cobol-db2 program) View Answer

what you mean by cluster? View Answer

i have 5 steps in job i created a generation in step1 need to copy the same generation of the data in to other generation in 4th step, write the syntax? View Answer

How can we identify expired datasets? View Answer

01 a 05 b pic x(5) occurs 2 times 05 c redefines b pic x(10) is it correct or not? View Answer

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