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 a Database Request Module(DBRM)?

4 20189

What are the different methods of accessing db2 from tso? How is the connection established between TSO & DB2?

Tech Mahindra,

3 14317

What is cursor stability?

1 8437

What are data types?

2 5392

What is a NULL value? What are the pros and cons of using NULLS?

2 9636

What are leaf pages?

3 8823

when does the SQL statement gets executed when you use cursor in the application programming ?

IBM,

3 10507

What are the disadvantages of PAGE level lock?

3 8355

In terms of DB2 indexing, what is the root page?

1 5318

I need to view the number of tables existing under one particular Owner. Is it possible? If so, pl give the SQL query for this?

2 5025

What is meant by the attachment facility?

3 9360

What is a Cartesian product?

2 10232

What is DCLGEN ?

2 6216

Can we declare DB2 HOST variable in COBOL COPY book?

2 10473

What's the Maximum Length of SQLCA and what's the content of SQLCABC?

2 18844

Un-Answered Questions { IBM MainFrame }

How many maximum base registers we can have in a program?

1029

What is the use of the program list table?

1076

Explain the difference between a symbolic map and physical map?

1030

What are the different types of table spaces?

987

What is the purpose of dd dummy statement?

1460

What is maximum displacement and how to cross this limit?

1173

how to send a sms to a mobile through mainframe mvs?

1180

What is cloudant database?

1094

What are the different dataset organizations used in vsam?

992

what are the parameter we cannot use in procedure? How many instream we can write in single jcl? Can we call instream to catalog and catalog to instream?

1034

How to connect to db2 database from windows command line?

1061

is there any other way to install s/w in mainframe apart from smp/e system?

2628

What is the use of qsam?

816

How is a type of file defined in the jcl that executes the cobol program?

1188

Are view updateable?

1040

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