IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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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

Explain the function of entry-sequenced data set?

1035

State the differences between vsam and non-vsam files?

1055

What is the main function of key-sequenced data set?

1025

Differentiate between control interval (ci) and control area (ca)?

1008

Differentiate between ci split and ca split?

1014

Describe the uses of ams?

1013

What are the information stored in ci?

1006

What is a vsam dataset?

1033

Tell about the ams used in vsam?

1178

Discuss record management in vsam?

970

What do you understand by the term job time – out and how can you overcome that?

1033

What is the motivation behind coding class parameter in job statement?

1181

List the different components of jcl statement?

1088

List the different jcl statements that are not permitted in the procedures?

1086

What are the rules employed while naming the steps in a job?

1141

Un-Answered Questions { IBM MainFrame }

when a task suspends all the handle conditions via the push command, how does the task reactivate all the handle conditions?

1177

Explain the maximum number of fields allowed per segment and what is the maximum number of fields per database?

1062

What is db2 plan table?

1052

Explain how do you delete item 3 in a five-item tsq?

924

What is the advantage in De-normalizing tables in DB2?

1181

Explain the like inverted list?

952

Why do you need a secondary index in an ims?

964

What is cursor stability in db2?

1358

Describe major components of db2?

1095

Explain about ISPF/TSO Commands

1949

name the utility program closely associated with vsam?

1046

What is hierarchical database?

3723

How to create db2 table in mainframe?

1154

What are the cics transactions?

1030

Can we call instream to catalog and catalog to instream?

1145

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