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

What does a disposition of (new,catlg,keep) for a dsn mean?

1150

What are steplib and joblib? What for they are used?

1229

Is condition checking possible in jcl? If yes, how?

1292

What are steplib and joblib?

1170

Suppose I have five jobs to do. But I want to hold one?

1127

Is it possible to define dd statements as you want?

1115

How to pass data to a program that is coded in an exec statement?

1335

What is job control language?

1093

What is the difference between the positional and keyword parameters? Give examples.

1260

Suppose I have a program in cobol name ”careerride” and want to execute the program by jcl. Specify the process?

1115

What are hierarchy levels in jcl?

1522

How dummy is used in jcl?

1149

For what purpose steplib and joblib are used ?

1140

How to alter the parameters for the existing gdg?

1204

I have a job called careerride and some steps in it as step1,step2. But I want to execute step2 before step1 ? How do I do that?

1399

Un-Answered Questions { IBM MainFrame }

When is inspect verb is used in cobol?

1258

What is the comaera (communication area)?

1106

How to run my rexx exec?

923

what is the responsibility of the construction superintendent

2147

We have an output dataset in job with disp parameter as shr.

948

Is it possible to alter a table – for example adding a column, when another user is accessing or updating some columns?

1082

what is the other verb for release and write ?

1006

What is the comaera?

1258

Explain how pa key is different from pf key?

1163

Can you please let me know the centre name of INS certification in Kolkata.

2244

What is the function of finish in idms?

887

Define an associator in adabas?

961

How do you access an uncatalogued dataset in a jcl?

1217

Can one database have multiple instances?

1054

how do you fire a batch job from a cics txn ?

1052

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