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

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

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

why we are using picture clause in the cobol programs?

2 7551

i need a small 3d program using inline and outline.

2264

i want a program using by if, evaluate , string, unstring, perform, occurs?

1 4803

I found some good questions/answers regarding IMS here:

3116

How to execute step2,step5,step7 of a proc of 10 steps? You are not allowed to change in JCL.

IBM,

3 14930

What is the logical entity between plan and Package?

5 9103

IN DFSORT sum fields=none is usec to remove duplicates.how to write the duplicates in another dataset?

2 13875

is it compulsory commitment control in journal?

TCS,

2523

How to delete the records of a dataset through cobol programme?We should not use jcl utilitities like IDCAMS.

2 9717

What are the common jcl syntax errors you get? This is not abends?

1 6465

suppose a cobol programme A calling programme B,C and D. If C undergoes some change what if A,B,C,D need to be recompiled or only C nee to be recompliled.

IBM,

2 8966

How do u know what version of cobol u are using?

3 15868

How can you create a VSAM dataset? Can you write a JCL for it?

IBM, TCS,

4 23679

What's the difference between DB2 active log and archive log? Thanks a lot...

IBM,

2 13488

how will you retrieve first record in table

UST,

1 6251

Un-Answered Questions { IBM MainFrame }

Which is the difference between delimited by size and delimited by space?

1147

can any one plzzzzzz tell the jcl code for creating ps using idcams

11774

What is dbdgen process?

1270

Mention the guidelines to write a structured cobol program?

1147

List the type of locks?

983

what is db2 restart?

2218

what is the purpose of coding class parameter in job statement?

1315

What is the use of value function?

1209

What is the use of commit in db2?

1144

I understand Join always perform better than subqueries. Then what is the advantage/use of Subqueries/correlated subqueries etc.,in DB2 programming.Please explain.

2118

Is condition checking possible in jcl?

1260

What are the parameter we cannot use in procedure? How many instream we can write in single jcl?

1133

how do you reference the rrds file formats from cobol programs

1664

What is check constraint in db2?

1169

Why do we need integrated cics translator?

1132

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