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 is dbkey?

875

Explain about few error status codes of idms.

877

Discuss some of the terminology of idms.

918

Difference between fixed length and variable length records.

840

Explain storage architecture of idms.

842

Is automatic restart possible in jcl?

1209

How jcl work to handle various input output file operations?

1161

Is their any set of rules for dd? Explain.

1187

What is use of restart and how to use it?

1313

Can I share my data with other jobs? How?

1112

Are there any set of rules for the names of the steps used in a job?

1129

What is the significance of addrspc parameter in exec statement?

1204

What are the parameters that are used in creating a gdg?

1202

Differentiate between addressing mode and run mode.

1074

I want my job (careerride) to be executed in 1 minute and 2 seconds. How do I do that?

1228

Un-Answered Questions { IBM MainFrame }

What is the use of uni-rexx?

932

Explain ceci transaction commands?

1023

How does a cursor work?

983

What is the use of trt instruction?

1014

How to check last update on table in db2?

1057

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

946

What is host variable in db2 cobol?

1077

Explain the difference between pseudo-conversational and conversational?

1086

what do you mean by the cobol record key clause in vsam?

1018

What is the pcp in the cics?

930

Explain the logical message in cics?

1019

Explain acbgen process?

1092

Explain the difference between a package and a plan. How does one bind 2 versions of a cics transaction with the same module name in two different cics regions that share the same db2 subsystem?

1030

What is the function of finish in idms?

880

When space is allocated for an output dataset, what units can be used?

1262

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