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 ?

1241

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

1039

Explain how DSECT parameter is used in BMS ?

1204

Define RCT.

1210

Name a few CICS programs which are generally used ?

1044

Give certain situations where NEWCOPY is obligatory?

1111

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

1119

What are the different rules of SORT operation?

1138

What is the difference between PIC 9.99 and PIC9v99?

1336

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

1318

What is the Purpose of Pointer in the string?

1075

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

1229

What is the use of LINKAGE SECTION?

1 1871

Which mode is used to operate the sequential file?

1201

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

1197

Un-Answered Questions { IBM MainFrame }

What does the 'cemt:cics' transactions do?

1200

Explain about open switch business continuity software?

1127

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?

2291

Explain the use of the where?

1060

Why adabas is used?

920

What is explain plan in db2?

989

What is meant by a ‘Transid’ ?

1051

Can you define aica abend?

1152

Highlight the points of differences between XCTL and START?

1234

when can a job time-out occur? How to overcome that?

1284

explain in brief what are the 3 types of vsam files?

1103

What is a scope terminator give example?

1107

What are the cics transactions?

1026

what are transient data sets defined to cics?

1173

List out all the tables that are a part of cics ?

957

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