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 are the codes returned by the ams (access method services) command during the execution in vsam?

IBM,

1286

is it required that primary key values have to be unique? Do alternate key values have to be unique?

IBM,

1051

what do you mean by a upgrade set in vsam?

IBM,

1061

explain how do you define a gdg in vsam?

IBM,

1023

explain how can you initialize a vsam file before any operation?

IBM,

1099

what do you mean by gdg in vsam?

IBM,

1190

what are the additional information you should give in the dd statement while defining the next generation of a gdg?

IBM,

981

name the utility program closely associated with vsam?

IBM,

1030

what do you mean by idcams? Explain its purpose?

IBM,

961

is delete operation supported in an esds? Is rewrite operation possible in esds?

IBM,

1105

what will happen when you try to open an empty vsam file in a cobol program for input?

IBM,

1048

what are s0c1, s0c4, s0c5, s0c7 abends?

IBM,

1302

can you specify some the distinctive features of a ksds, key sequenced dataset?

IBM,

1025

how many buffers are allocated to vsam ksds and esds?

IBM,

1163

what do you mean by recovery and speed parameters in define cluster command?

IBM,

1103

Un-Answered Questions { IBM MainFrame }

how to convert the recors form vsam file to db2 table tru file aid

3254

How to find primary key of a table in db2?

1060

Explain the function of the dd dcb keyword?

1252

ther r 2 tables OTTABLE & SALTABLE, add the otamt from OTTABLE to empsal of SALTABLE if eid is matched else add the unmatched from OTTABLE to SALTABLE

2065

What is multi row fetch in db2?

1045

Explain the device independent method to indicate where a record is stored?

915

hi provide info about any real time requirement in health care and banking services mainframe applications. pls send immediate reply to me.

1990

What does EIB mean in CICS?

1169

Explain the function of the steplib dd statement?

1130

Explain how to receive data passed through jcl parm parameter in a natural program? How data definition is defined in the program?

1121

Is it possible that the redefines clause has different picture clauses compared to the one it redefined?

1146

What is meant by a ‘Transid’ ?

1051

Write about a ‘view’ in brief?

967

What are some of the cics commands associated with interval control?

1029

What is a ca split?

1076

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