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 DSECT parameter in BMS?

IBM, Xansa,

2 19862

Which CICS system program is responsible for handling automatic task initialization?

IBM,

2 8355

Native Mode Data Stream (NMDS) is a mixture of Buffer Control Characters(BCC) and text data (True or False)

2 8131

What is the difference between CICS Program Control Table (PCT) and CICS Processing Program Table (PPT) ?

IBM,

4 21403

What is the command which will delete a program LOADed into the main storage using LOAD command?

2 7946

How do you place the cursor on a particular position on the screen?

IBM,

1 6561

How will you place cursor on a field called ?EMPNO?.

2 6417

Why doesn?t CICS use the Cobol Open and Close statements ?

2 9128

Reading a record from a TSQ will logically delete the record from the Queue (True or False).

1 7218

What are the three ways available for a program to position the cursor on the screen?

IBM,

2 5746

What is the option that is used to erase all unprotected fields during a SEND MAP operation?

Kanbay,

5 15894

A CICS program ABENDS with an ASRA ABEND code. What is its meaning?

IBM,

3 26684

What CICS command do you need to obtain the user logon-id?

IBM,

1 5545

what are the differences between DFHCOMMAREA and TSQ ?

IBM,

3 15815

When an XCTL is done, does the tranid change ? Is a new task created ? Does it cause an implicit

3 11784

Un-Answered Questions { IBM MainFrame }

I have a program with an Array of 5000 occurences which is being passed from 5 sub levels to the front end screen. Thess 5 programs using each 5*2 = 10 different arrays with size as 5000. This is causing the transaction to utilize more storage consupmtion. I am looking to reduce the storage consumption. As part of that initially i thought Dynamic array may solve my problem. After viewing the comments given i see its same as normal array. IS there any other way we can resolve this issue?

1654

How do you get the data to code the BMS macro?

1982

What is RRange and ARange?

2120

What is batch dl/i mode?

3363

What is reorg?

1167

Explain the cics command that is used for reading a record from the tdq?

1012

How to find the UNIT and VOLUME of a (a) KEPT (b) UNCATALOGED and (c) CATALOGED dataset - using (i) JCL and using (ii) ISPF ?

2684

What is the physical storage length of date data type?

1260

What is db2 stogroup?

1171

when an apllication is invoked via the exec cics start command with the from option, how does the application gain access to the common area?

1084

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

1017

What language is db2 written in?

1053

What is integrated data dictionary?

956

What is db2 bind process?

1247

Explain the data storage?

1015

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