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?

1153

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

1232

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?

1336

What is job control language?

1093

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

1261

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

1117

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?

1400

Un-Answered Questions { IBM MainFrame }

What is the use of lds (linear data set)?

1029

differentiate between sequential files and esds files in vsam?

1171

Explain about set currency?

869

What is the difference between comp and comp-3 usage?

1201

Define base cluster?

1014

Define sqlca.

1117

Define cobol?

1408

Mention the downsides of page level lock.

1163

what happens when COND is coded in JOB statement and when COND is coded inside EXEC statement?

1302

How many bytes does a s9(7) comp-3 field occupy ?

951

Explain what is the massinsert option?

1069

Explain how to differentiate call by context by comparing it to other calls?

1186

What is host variable?

1060

For rewrite, why is it mandatory that file needs to be opened?

1109

What are the various data types available in db2?

1094

For More Un-Answered { IBM MainFrame } Questions Click Here