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

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DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
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REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

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

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

What is auditing?

2 5030

Lot of updates have been done on a table due to which indexes have gone haywire. What do you do?

2 5110

When do you specify the isolation level? How?

1 5214

What do the initials DDL and DML stand for and what is their meaning?

2 5447

What is the error code -803 ?

3 11786

What can the SET option of the Repair Utility accomplish?

1 5571

What are the levels of isolation available with DB2V4

IBM,

2 4598

Where are plans stored?

2 7137

What is a clustering index?

2 5552

What is a Resource Control Table(RCT)? Describe its characteristics.

3 13542

How is the SUBSTR keyword used in sql?

1 9340

What is an inner join, and an outer join ?

CTA,

1 12930

Where is the access path logic created by the DB2 Optimizer stored?

1 8362

What is a root page?

1 4347

What happens to the PLAN if index used by it is dropped?

1 5759

Un-Answered Questions { IBM MainFrame }

How to Provide Column Names Using the DRAW Command ?

1526

What is the maximum number of fields allowed per segment and what is the maximum number of fields per database?

1033

If a (+1) generation dataset is created in the first step of a job, how can it be referenced in later steps of the same job for input?

1305

is it compulsory commitment control in journal?

2474

What are the types of processes to create a map in cics?

1044

how can the same proc be re-used and called by many jobs?

1503

What is bind in db2?

1036

How do get the result of your program directly on your pc?

2335

Differentiate between structured cobol programming and object-oriented cobol programming.

1143

How many databases are there?

1051

What is the kcp in the cics?

1163

What is a storage group (stogroup)?

1241

Explain how pa key is different from pf key?

1155

What is length is cobol?

1097

What is currency in idms?

961

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