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 Comp-2?

1130

What is the maximum value that can be stored in s9(8) comp?

1044

Give the format of using and giving in sort statement. What are the restrictions with it?

1029

Can I redefine an x(100) field with a field of x(200)?

962

How many bytes does a s9(7) comp-3 field occupy ?

944

How many bytes does a s9(7) sign trailing separate field occupy ?

1121

My program has an array defined to have 10 items. Due to a bug, I find that even if the program access the 11th item in this array, the program does not abend. What is wrong with it?

1069

What happens when we move a comp-3 field to an edited (say z (9). Zz-)?

1401

How many bytes do a s9 (7) comp-3 field occupy?

1 1892

Explain how to differentiate call by context by comparing it to other calls?

1181

What is an in line perform? When would you use it? Anything else you wish to say about it.

1069

How do you code cobol to access a parameter that has been defined in jcl? And do you code the parm parameter on the exec line in jcl?

1195

What is comp-1 and comp-2?

1228

What is the default value(s) for an initialize and what keyword allows for an override of the default?

1207

What is amode(24)?

1227

Un-Answered Questions { IBM MainFrame }

How to view db2 table structure?

1015

Why is it required to have a keyed directed retrieval?

1019

I HAVE A VB BLOCK WHICH IS USED AS INPUT IN COBOL CONATINING SOME RECORDS CAN I CHANGE THE FILE FROM VB TO FB?

2555

which parameter is used to check the syntax of a jcl without executing it?

1358

what is u r recent task in insurence project?..plz tell how to tell this.

3325

Explain how many conditions can you include in a single handle condition command?

1032

can you please let me know if there is any walkins for COBOL/PLI/DB2/IMS/JCL in pune other than IBM and ITC infotech

2426

How to find or access the current level of a gdg?

825

What is cobol?

1238

What are the processing modes available in ims db?

1074

what is use of dsn parameter in dd statement?

1158

Mention the different locking levels that are available in db2.

1127

Explain about maximum displacement?

1054

What are the common tables in cics and their usage?

1008

What is iseries database?

1046

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