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

Why do we code s9 (4) comp. Inspite of knowing comp-3 will occupy less space?

1118

Name the divisions, which are available in a cobol program?

1175

What is the difference between structured cobol programming and object alternativelyiented cobol programming?

1181

What is amode(31)

1113

Explain how will you differentiate between an internal and an external sort, the pros and cons, internal sort syntax etc

1202

What is the difference between a binary search and a sequential search what are the pertinent cobol?

1095

What is a scope terminator give example?

1055

What is the difference between comp and comp-3?

1135

Difference between cobol and cobol-ii?

1197

What are literals?

1077

What kind of error is trapped by on size error option?

1178

What are the different data types in cobol?

1336

Can we redefine the field of x(200) to less than 200?

1311

What is the local-storage section?

1105

What is the difference between perform … with test after and perform … with test before?

1373

Un-Answered Questions { IBM MainFrame }

If we say that bms length of field = 0, then what does that mean?

1197

What are the utility programs in jcl?

1104

How do you reference the fixed block file formats from cobol programs

1160

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

1019

Suppose if I have updated few fields of adabas file using update command, and after that I used display to see that field get updated or not. If in display it showing nothing or record did not get updated then what can be the possible reasons?

911

How do you pull up a query which was previously saved in qmf?

1103

Explain about the file objects in vsam?

987

Name some of the examples of COBOl 11?

3085

what is the compile process of cobol program expalin with code

2505

)If there are 10 steps in GDG, if I want to refer the step2 after step5 . what should I do?

1956

Can you explain primary aspect of cics?

1094

What is cobol?

1202

Mention one alternative aspect of CICS?

1030

What is Framework & How it work?

2057

if we want to use a gdg which is already created by some job, then how to use the reference of the last generation in a jcl?

2223

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