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 does ?Pseudo Conversational? mean?

IBM,

3 9884

Name some translator and compile options and explain their meaning?

Fujitsu,

2901

What are the steps you go through to a create a BMS executable?

IBM,

2 6676

What is some of the information available in the EIB area?

IBM,

2 6018

Which is the EIB field that gives the date when a task was started?

1 7067

What are attribute bytes and how and why are they modified?

1 5543

What are the parameters that you have to give when you are using the CSSN transaction?

3 6103

What is DFHEIBLK?

IBM,

3 29579

How can the fact that EIBCALEN is equal to zeros be of use to an application programmer?

IBM,

1 5393

Is there any entry for TSQs in CICS tables?

IBM,

3 8568

What is MDT?

IBM,

1 5418

CICS and DB2 can exist in the same region under the Operating system (True or False)

2 6707

What does the following transactions do?

1 5020

Can we define an alternate index on VSAM/RRDS ?

IBM,

2 7736

If you use the OPTIMIZE compiler option the size of the program can be reduced by 5 to 10%(True or False)

2 5535

Un-Answered Questions { IBM MainFrame }

what difference exists between control area and control interval?

1108

what is unit testing ? on which basis you will write test case ?

2072

Which dd parameters are required?

1251

what is swap-in and swap-out?

1160

Can we use DISP=SHR in output file in JCL

1468

Define exec cics retrieve?

1246

How to compare data between two tables in db2?

1142

What is the difference between ooRexx and IBM's Object REXX for Windows?

1146

Explain the primary function of the processing program table (ppt)?

1051

What do you understand by the terms: joblib and steplib?

1262

What are the different rules of SORT operation?

1208

Is it possible to define dd statements as you want?

1168

how to pass the parameters from jcl to assembler pgm?

1163

List out the three types of page locks that can be held.

1202

I have done a start browse on a vsam dataset. Can I do another start browse without doing an end browse?

1143

For More Un-Answered { IBM MainFrame } Questions Click Here