IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

What is meant by concurrency?

1 6184

What is subquery ?

6 12682

How would you move a tablespace (using STOGROUP) to a different DASD volume allocated to that tablespace?

1 5878

How does the processing of a correlated subquery differ from a non correlated subquery?

1 7471

Can you define an Index if the table size less than 10 PAGES?

IBM,

1 6316

What are the various locks available?

CTS,

5 12349

What will the DB2 optimizer do?

2 6345

What are the contents of a DCLGEN?

MetLife,

4 13316

What is deadlock?

2 7159

What is Declaration Generator(DCLGEN)?

1 7207

What is the difference between static and dynamic SQL?

1 25819

How many Buffer pools are there in DB2 and what are they?

IBM,

1 7697

What is RUNSTATS?

3 7822

How many sub queries can you combine together ?

IBM,

4 10428

What is a cursor and what is its function?

2 5678

Un-Answered Questions { IBM MainFrame }

What is the use of the eibaid field?

1150

what is the use of IEBGENER utility?

1176

what are the idcams commands that can be used for vsam and explain each of them.

1001

What methodology can be adapted to transfer data to a program that is coded using the exec statement?

1228

What is the maximum of key fields and search fields allowed in a segment?

999

What are sqlcodes –803,-805, -811, -818,-904,-911,-913,-101, +100?

1189

Explain how can the disposition of sysout datasets be set for an entire jobstream?

1099

Explain the processing modes available in ims db?

3639

How to traceback if I am getting SOC7 or SOC4 abend? List down the steps

5377

what are the common errors that occured while programming in AS/400?

1538

Explain the maximum number of segment types allowed for a single database?

2277

Explain about dbrm.

1053

When an area sweep is used?

847

What is the abend command?

1040

What is idms?

873

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