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 use of db2 optimizer?

1183

What are the full forms of spufi and dclgen and why are they used?

1152

Give a brief description of db2 isolation levels?

1146

What is db2 and what is the use of db2 optimizer?

1118

Mention data types used in db2 ?

1210

Explain the contention situations caused by locks?

1152

What is buffer pool and list some of them?

1101

Mention and explain the contention situations caused by locks?

1 1598

What is meant by union and union all?

1065

Explain package in db2 and its advantages?

1284

What is the main function of linear dataset?

1154

Explain about the file objects in vsam?

1104

Explain the process in which flat files are converted into vsam files?

1072

Explain the function of the relative record data set?

988

What are the different commands used in idcams for vsam?

1125

Un-Answered Questions { IBM MainFrame }

How do you reference the fixed block file formats from cobol programs

1294

How converted the natural coding for adabas

3361

how to compare two datasets without using superce because output is limited to 133 bytes

2174

what are the thress bms options?

1314

What is the difference between an obtain next and obtain first in idms?

947

What is runstats utility in db2?

1079

How to test SQL -911 error while developing COB-DB2 program

7685

What is the maximum number of segment types allowed for a single database?

1183

What will happen if both steplib and joblib are specified?

1097

how can we apply for HSBC exam(Mainframe) in India??? i went to their site and was told to submit my CV ,. etc..( totally confusing...)

2453

What is ibm db2 client?

1012

What is buffer pool?

1163

Explain the difference between the into and the set option in the exec cics receive map command?

1184

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

1135

what methods are available for persisting records in an idms database?

901

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