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

explain in brief how you can create a vsam file?

IBM,

1195

why ci and ca splits are not possible in esds and rrds?

IBM,

1217

what is a base cluster in vsam?

IBM,

1185

what do you mean by define model parameter?

IBM,

1231

how can you load a vsam data set with records ?

IBM,

1224

is it necessary that all versions of the gdg have to be of the same record length?

IBM,

1207

what is the use of the file status clause in the select statement in vsam?

IBM,

1165

what is meant by s0c-07 system abend codes?

IBM,

1157

explain in brief why do vsam take more disk space than other utilities?

IBM,

1166

explain in brief how are different versions of gdg named?

IBM,

1050

differentiate between sequential files and esds files in vsam?

IBM,

1238

what will happen if there is no secondary allocation made for datasets?

IBM,

1168

there are seven idcams commands in vsam. Can you name and explain each of them?

IBM,

1166

Can you delete vsam files with the delete option of the disposition parameter of jcl?

IBM,

1176

in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?

IBM,

1252

Un-Answered Questions { IBM MainFrame }

Explain the use of the where?

1137

What is difference between rollback and commit?

1213

Explain why do we use file-aid for seqential files?

1141

Is it possible to obtain a record from IDMS database without mentioning the record-name itself?

1398

What is a lds (linear data set)?

1069

Explain how you can characterize tables in cobol?

1115

Define cobol coding sheet?

1067

Explain the purpose of dd * statement in jcl?

1126

can anybody post me about file-aid and changemen tools pls and give me reference if any mainframe guys are there

2525

Can you explain cics transaction gateway?

1126

Can you define aica abend?

1218

to use the rewrite command, how should the vsam file be opened?

1368

What is the significance of addrspc parameter in exec statement?

1264

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

1315

is oorexx compatible with rexx?

1004

For More Un-Answered { IBM MainFrame } Questions Click Here