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 SEND MAP DATAONLY and SEND MAP MAPONLY ?

1298

Name at least one of the ways by which a transaction can be terminated?

1095

Explain how DSECT parameter is used in BMS ?

1260

Define RCT.

1268

Name a few CICS programs which are generally used ?

1117

Give certain situations where NEWCOPY is obligatory?

1159

Can a CICS code be a part of a copybook? If so, then what are the outcomes after compilation?

1176

What are the different rules of SORT operation?

1206

What is the difference between PIC 9.99 and PIC9v99?

1410

Why is it necessary that file needs to be opened in I-O mode for REWRITE?

1392

What is the Purpose of Pointer in the string?

1127

How can we find that module can be called – whether DYNAMICALLY or STATICALLY?

1272

What is the use of LINKAGE SECTION?

1 1962

Which mode is used to operate the sequential file?

1257

What is the difference between comp and comp-3 usage?

1270

Un-Answered Questions { IBM MainFrame }

How to connect to db2 database from windows command line?

1147

What are all the divisions of a COBOL program?

1277

explain the information contained in ci

1093

write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

1304

Is schema the same as database?

1111

What is the difference between db2 and oracle?

1183

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?

2358

when does a dataset go uncataloged?

1359

What are the different versions of gdg named?

1050

What db2 400?

1260

what does a file status of 02 on a vsam signifies?

1237

What are the two ways in which dl/i interface can be invoked?

1007

How do I change the column size in db2?

1212

What is basic difference between directory and pds in ibm mainframe?

1234

what are the reserved words for cics?

1160

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