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?

871

Explain about few error status codes of idms.

877

Discuss some of the terminology of idms.

916

Difference between fixed length and variable length records.

839

Explain storage architecture of idms.

842

Is automatic restart possible in jcl?

1208

How jcl work to handle various input output file operations?

1159

Is their any set of rules for dd? Explain.

1186

What is use of restart and how to use it?

1310

Can I share my data with other jobs? How?

1109

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?

1199

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

1199

Differentiate between addressing mode and run mode.

1071

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 structure and definition for the same?

1001

How to resolve deadlock issue

20099

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

2386

Explain about rct.

1085

What is the purpose of disp parameter?

1112

suppose I have 1000 rows in a db2 table. I want to update first 100 records, how do I do it?

1115

What is the use of the eibaid field?

1140

What is image copy in db2?

1010

which utility is used a dummy utility?

1462

What is blu acceleration in db2?

1065

Explain difference between escape(top or bottom) and escape immediate(top or bottom?

1183

What is the utilization of copybook in cobol? Could we utilize a similar copybook?

1226

how would you create a temporary dataset? And where will you use them?

1396

What is the procedure to solve an ASRA ABEND?

1034

What is temporal table in db2?

1034

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