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

Define cobol?

1327

What are different data types in cobol?

1239

Define static linking and dynamic linking.

1126

How to know whether the module is dynamical or statistical?

1094

What is the difference between next sentence and continue in cobol programing language?

1173

For rewrite, why is it mandatory that file needs to be opened?

1075

Mention the guidelines to write a structured cobol program?

1043

What is the difference between version control and debugging tools?

998

What is mainframe testing?

1039

What is the difference between the mro & isc?

977

What is the cics command that is used to access current date and time?

1062

Describe major components of db2?

1053

Explain about rct in db2?

1056

What is db2?

1135

Explain various types of locks in db2?

1098

Un-Answered Questions { IBM MainFrame }

What is the function of the steplib dd statement?

1153

What is the device independent method to indicate where a record is stored?

1005

Specify cics transaction initiation process?

1025

Explain about open switch business continuity software?

1088

how to refer the data field?

2222

What will happen if both steplib and joblib are specified?

984

In COBOL, what is the different between index and subscript?

1202

What is null indicator in db2?

1061

How many root segments do we have per database record?

1006

Give the definition of COMMAREA ?

1014

is delete operation supported in an esds? Is rewrite operation possible in esds?

1062

What is the meaning of the deq command?

1097

What is innodb buffer pool?

996

Explain the function of entry-sequenced data set?

988

Discuss record management in vsam?

924

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