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?

833

Explain about few error status codes of idms.

840

Discuss some of the terminology of idms.

872

Difference between fixed length and variable length records.

797

Explain storage architecture of idms.

799

Is automatic restart possible in jcl?

1156

How jcl work to handle various input output file operations?

1104

Is their any set of rules for dd? Explain.

1115

What is use of restart and how to use it?

1274

Can I share my data with other jobs? How?

1038

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

1065

What is the significance of addrspc parameter in exec statement?

1154

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

1155

Differentiate between addressing mode and run mode.

1007

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

1193

Un-Answered Questions { IBM MainFrame }

Describe the cobol database components?

1131

Name and explain the location modes?

833

What is the difference between using bind () and rebind () methods of naming class?

1345

how do you reference the fixed unblock file formats from cobol programs

1184

I have a COBOL program that ACCEPTs some input data. How do you code the JCL statement for this?

1143

what is “Cond= even” and “Cond=only”?

1257

Explain the maximum number of segment types allowed for a single database?

2211

How can you access esds files from cics?

1042

Give a brief description of db2 isolation levels?

1022

What is the role of union all and union

1083

What does a cics translator do?

1394

How do I add a column to a table in db2?

1059

What are the 2 types of parameters in dd statement?

1109

What is a storage group (stogroup)?

1199

What are the two ways in which dl/i interface can be invoked?

902

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