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

Which isolation level provides highest data integrity?

1114

What is the reason behind not using select * in embedded sql programs?

1112

What is the maximum size of varchar data type in db2?

1132

What is the maximum size of a char data type in db2?

1010

What is cursor stability in db2?

1356

What are the various data types available in db2?

1090

Which component is used to execute the sql statements?

1095

How is a type of file defined in the jcl that executes the cobol program?

1189

What is jcl in mainframe, and how many types of jcl statements are there for a job?

1190

Define cics interface block?

993

What are the cics transactions?

1028

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

1230

What are the cobol coding sheets?

1265

Describe the cobol database components?

1171

What is the utilization of copybook in cobol?

1188

Un-Answered Questions { IBM MainFrame }

Explain the disadvantage of dynamic generation of acb?

941

Differentiate between PCT and FCT.

1174

whats the diff bw the evaluate also and and?

2340

Enlist the features of rexx as a programming language.

1029

Explain the difference between physical map and symbolic map?

991

What do you mean by hierarchical database?

1199

Define a page in idms?

822

How many root segments do we have per database record?

1034

What is access path in db2?

985

Explain the data storage?

995

What is the syntax of JCL statement?

1230

What is report-item in COBOL?

1154

What is the clustering index in the db2 database?

1001

How does db2 sample database connect?

1026

why should SYSIN DD * statement should not be included inside a PROCedure snippet??? please answer this.. i need to know.

2454

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