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

If we wish to create bms executable, what are the basic steps that the user has to go through?

1044

In a particular cics program, what is the procedure to allocate dynamic memory?

1107

What is meant by an attribute byte?

992

Is length = 0 sufficient to ascertain that the field has been modified?

1009

Explain the primary significance of intra-partition and extra-partition tdqs ?

1015

Explain the uses that are associated to tsq and tdq ?

1037

Whenever a cics program goes through a compilation process, there is always some extra code that is added to the program. Where exactly does this new piece of code go to and what is it termed as ?

979

What does a deadlock mean in DB2?

1099

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

1117

What parameters are used to control the free space in DB2?

1012

How can record locking be achieved in those DB2 versions which do not support it?

1021

Name the lockable units in DB2?

1075

What is the need of a secondary index in IMS?

1019

What is the place for VSAM KSDS?

1061

When are scope terminators compulsory?

967

Un-Answered Questions { IBM MainFrame }

What is batch dl/i mode?

3305

what is uni-rexx?

935

Which command can you use to check for the number of records in a physical file?

1265

We can use PASS with permanent datasets also. THEN Which is the condition in which we may use PASS (instead of KEEP) with permanent data sets, while there is no need to specify UNIT and VOL for them like temporary data sets (in cas we use KEEP for permanent data sets) ?

2181

Explain dfsort utility?

1285

Which isolation level provides maximum concurrency?

1093

How does db2 sample database connect?

975

Differentiate between structured cobol programming and object-oriented cobol programming.

1078

how many buffers are allocated to vsam ksds and esds?

1113

State all the file open modes?

1004

What are the various section in data division and briefly explain them.

1112

What is the function of logging in the db2 database?

1071

if we have " ibm mainframe ",in that how to remove first and last leading space eg:"ibm mainframe" like that the answer we need

1294

What are the functions available in rexx?

883

When are scope terminators compulsory?

967

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