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 meant by dirty read in vsam?

IBM,

1339

name a few common vsam status codes?

IBM,

1057

explain the differences between vsam and non-vsam files

IBM,

1157

how do you define an altindx ? How do you use altindxs in batch, cics programs?

IBM,

1070

what parameter in the define aix option is used to determine the maximum number of duplicate keys allowable ?

IBM,

1005

explain the information contained in ci

IBM,

1014

difference between vsam and database tables

IBM,

1132

what is the meaning of each of the values in shareopts(2 3)?

IBM,

1028

what are the idcams commands that can be used for vsam and explain each of them.

IBM,

986

what is buffering and how does it apply to vsam files ?

IBM,

1170

we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.

IBM,

1324

explain icm instruction?

IBM,

1073

explain about maximum displacement and how to cross this limit?

IBM,

1144

how to retrieve the instream data in sysin?

IBM,

1141

how to pass the parameters from jcl to assembler pgm?

IBM,

1107

Un-Answered Questions { IBM MainFrame }

Portfolio analysis application is an example of?

1133

What is the comaera?

1258

Define task work area?

1314

What is the comaera (communication area)?

1102

What is the purpose of control intervals in vsam?

1008

How do get the result of your program directly on your pc?

2339

Mention the location where the output received from explain statement is stored.

1127

How do I delete a table in database?

1016

difference between vsam and database tables

1132

what is the purpose of coding notify parameter in job statement?

1162

Every map is categorized into multiple fields, and there are three common working storage fields present for each of these respective fields. Mention those?

1056

Why is it required to have a keyed directed retrieval?

1023

INREC AND OUTREC? HOW TO SPLIT 5K RECORDS TO DIFFERENT FILES IN A FILE IN COBOL? RESTART IN COBOL-DB2? ISOLATION LEVELS?

865

Explain how do you handle errors in cics programs?

983

How does coalesce work?

1016

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