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

998

What is the advantage of creating the acbs well ahead of time?

997

How many root segments do we have per database record?

1006

What information does a psb contain?

1040

Explain acbgen process?

1045

What are the main control blocks available in ims db?

1051

What are the advantages and disadvantages of a hierarchical database?

1094

What is ims (db/dc)?

982

What is dbd?

969

Which languages does ims support / application program languages?

1 1187

What is meant by mpp mode?

1024

What is meant by batch dl/i mode?

1 1373

What is the maximum number of levels allowed in ims db?

947

Explain ims software environment?

931

Portfolio analysis application is an example of?

1067

Un-Answered Questions { IBM MainFrame }

What is release/acquire in bind?

1072

In a CICS program, how will you read a VSAM file?

1088

What is the Purpose of POINTER Phrase in STRING command in COBOL?

1204

What's The Percentage Free Space ?

1170

Explain how do you dynamically set the cursor position to a specific field?

1029

What is runstats db2?

973

can we describe the results of opening for input empty vsam files in a cobol program?

968

Is their any set of rules for dd? Explain.

1119

What is need of start 0?

1071

Is it possible to move the alphanumeric variables to a numeric variable?

1153

Db2 what is the difference between a package and a plan. How does one bind 2 versions of a cics transaction with the same module name in two different cicsregions that share the same db2 subsystem?

1086

What is the difference between lds and esds?

997

Difference between array and sub-script ?

1613

Explain the difference between dfhcommarea and tsq?

1030

What are the various isolation levels possible?

1060

For More Un-Answered { IBM MainFrame } Questions Click Here