IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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IMS (143)
IDMS (107)
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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,

1318

name a few common vsam status codes?

IBM,

1014

explain the differences between vsam and non-vsam files

IBM,

1113

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

IBM,

1036

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

IBM,

965

explain the information contained in ci

IBM,

972

difference between vsam and database tables

IBM,

1097

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

IBM,

980

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

IBM,

939

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

IBM,

1134

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

IBM,

1276

explain icm instruction?

IBM,

1030

explain about maximum displacement and how to cross this limit?

IBM,

1112

how to retrieve the instream data in sysin?

IBM,

1104

how to pass the parameters from jcl to assembler pgm?

IBM,

1065

Un-Answered Questions { IBM MainFrame }

What is the use of trt instruction?

978

What is the result of open cursor statement?

1045

Must tape dataset definitions include vol=ser specifications?

1668

What is buffer pool?

1044

Can you explain dfheiblk?

1055

What types of tables are there in the db2 database?

1022

Mention the types of job control statements?

1131

How is the sorting of vsam files carried?

1079

What is the difference between pct and fct?

1159

by using cond parameter maximum 8 cond can be coded in single cond means ?explain

1414

Explain about maximum displacement?

1016

What is fset?

969

Explain the maximum number of segment types allowed for a single database?

2213

Explain the cics command that is used for reading a record from the tdq?

958

What is the function of iebgener?

1014

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