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 difference between COMP & COMP-3 ?

2 30953

What was removed from COBOL in the COBOL II implementation?

2144

What will happen if you code GO BACK instead of STOP RUN in a stand-alone COBOL program i.e. a program which is not calling any other program ?

3 15674

How many sections are there in data division?.

Amdocs, TCS,

10 28431

What is the difference between NEXT SENTENCE and CONTINUE?

Mphasis,

2 14256

Can you REWRITE a record in an ESDS file? Can you DELETE a record from it?

ABC, IBM, Mphasis, Wipro,

6 27011

What is the maximum length of a field you can define using COMP-3?

Complex System, Infosys,

4 37503

How do you define a variable of COMP-1? COMP-2?

3 18145

What is the difference between comp and comp-3 usage? Explain other COBOL usage?s.

IBM, Xansa,

3 37303

Explain the difference between an internal and an external sort, the pros and cons, internal sort syntax etc.

3 13503

What do you feel makes a good program?

2 6317

What are the different data types available in COBOL?

4 11402

Can JUSTIFIED be used for all the data types?

3 10840

What is the linkage section?

4 9937

What is Static and Dynamic linking ?

3 11349

Un-Answered Questions { IBM MainFrame }

How To Compile The COBOL-BD2-CI CS Programs In Real TIme? Please Give Me the Detailed Description?

6755

Mention the various locks that are available in db2.

1040

What is the cics command that is used to access current date and time?

1121

Which component is used to execute the sql statements?

1096

please..could u give an example about USAGE IS POINTER ..and explain why and when we use it ?

2472

What are the different versions of gdg named?

991

What is the advantage of defragmentation?

967

What are the different commands used in idcams for vsam?

1064

I need to compare 3 variables(dates) and do some processing based on the earliest date. There could be more then 1 date record in any of the 3 fields. What is the best way to code this?

2276

Explain about the file objects in vsam?

1042

Why are you looking for a change?

977

Define the attribute byte?

1160

Name and explain the three location modes?

1361

Are view updateable?

1044

Explain about base register?

1058

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