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 7396

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

2212

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

1 4722

I found some good questions/answers regarding IMS here:

3061

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

IBM,

3 14751

What is the logical entity between plan and Package?

5 8911

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

2 13761

is it compulsory commitment control in journal?

TCS,

2478

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

2 9609

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

1 6377

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 8814

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

3 15725

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

IBM, TCS,

4 23519

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

IBM,

2 13368

how will you retrieve first record in table

UST,

1 6186

Un-Answered Questions { IBM MainFrame }

Portfolio analysis application is an example of?

1138

How to receive data passed through jcl parm parameter in a natural program?

972

Explain the function of the dd dcb keyword?

1258

Can you define attribute byte?

1029

What does the 'cedf:cics' transactions do?

1065

What is the idd in idms?

1050

What is the advantage of creating the acbs well ahead of time?

1038

If JOBA is in MSGW due to data decimal error and DUMP is generated and I found that Decimal field formatted with some special char which is coming from Input file amd file has millions of records. How I can find out on which record the error is occur. Please share your experience.....

2170

Explain about area currency?

853

What is the common work area?

990

What is amode(24), amode(31), rmode(24) and rmode(any) (applicable to only mvsesa enterprise server) ?

1215

Can you delete vsam files with the delete option of the disposition parameter of jcl?

1114

List out all the tables that are a part of cics ?

965

Explain the difference between lds and esds?

1034

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

1185

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