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?

1087

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

1163

What is meant by an attribute byte?

1048

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

1080

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

1082

Explain the uses that are associated to tsq and tdq ?

1087

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 ?

1034

What does a deadlock mean in DB2?

1169

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

1181

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

1057

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

1078

Name the lockable units in DB2?

1128

What is the need of a secondary index in IMS?

1067

What is the place for VSAM KSDS?

1104

When are scope terminators compulsory?

1038

Un-Answered Questions { IBM MainFrame }

What is the syncpoint command?

1218

What is the result of open cursor statement?

1083

Explain why do we use file-aid for seqential files?

1074

Explain foreign keys?

1022

what is use of dcb parameter in dd statement?

1306

How errors are handled in CICS programs?

1128

Explain the address converter?

1011

What are catalog tables in db2?

1051

State the difference between jes2 and jes3?

1012

What does a COMMIT statement do?

1394

What are the common cics service programs and explain their usage?

1032

Explain How will you the specification of database file?

907

What is the difference between general testing and mainframe testing?

1112

explain how can you initialize a vsam file before any operation?

1101

Define an asra abend?

1079

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