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 the usage of comp fields in cobol?

1182

In which area will you utilize 88 level items in cobol?

1161

How you can characterize tables in cobol?

1201

Name the various types of tables spaces.

1090

Name all the file-open modes

1078

How do you create a like table?

966

Explain the meaning of spufi?

1033

In a test environment, is there a need to run a runstats?

969

What is the term “where” for?

1005

What is meant by an isolation level?

1011

What is inspect?

1009

What is meant by a bolt dispute?

1351

List the type of locks and explain each of them.

932

Where is the vsam ksds placed?

964

What is meant by comp-3 and what is it used for?

1028

Un-Answered Questions { IBM MainFrame }

what about F1 & F2 keys in xpeditor? And their functionalities?

2484

What is the maximum length of a single line of jcl?

1351

In COBOL programming, what is PERFORM? What is VARYING?

1148

Write about a ‘view’ in brief?

969

Can one database have multiple instances?

1052

How to Build a Row Condition?

1718

What is the output of the following command given in tso/ispf terminal?

1020

what is the purpose of the verify function of idcams?

1054

What is a cics task?

1058

How can a stopped job be started again?

1191

Can you explain cics transaction gateway?

1077

what are the differences between and exec cics xctl and exec cics start command?

1230

what happens when COND is coded in JOB statement and when COND is coded inside EXEC statement?

1298

What is the importance of common attribute?

1074

EXPLAIN MAIN FRAME TESTING PROCESS...HOW TO FIX THE MAINFRAME BUGS?

2540

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