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,

1131

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

IBM,

1153

what is a base cluster in vsam?

IBM,

1131

what do you mean by define model parameter?

IBM,

1145

how can you load a vsam data set with records ?

IBM,

1159

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

IBM,

1143

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

IBM,

1108

what is meant by s0c-07 system abend codes?

IBM,

1074

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

IBM,

1087

explain in brief how are different versions of gdg named?

IBM,

996

differentiate between sequential files and esds files in vsam?

IBM,

1166

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

IBM,

1109

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

IBM,

1107

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

IBM,

1108

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

IBM,

1196

Un-Answered Questions { IBM MainFrame }

How to code these statements in JCL: CLEANUP INITIAL(NO) RESTART(NO) DYNALLOC(NO) job definition..?

2252

What does the 'cedf:cics' transactions do?

1062

what is the syntax of ams modal commands?

1260

How do I delete a table in db2?

1061

Explain the function of the dd dcb keyword?

1252

how you can direct the data to spool using SYSOUT option?

1460

For protecting a transaction using the transaction security function, the two things that must be done are?

2336

What is the comaera (communication area)?

1102

Is it possible to alter a table – for example adding a column, when another user is accessing or updating some columns?

1080

What is the syntax for FETCH in DB2 ?

1206

what are decleratives in cobol?

2254

What is the use of access method services in vsam?

1051

What is a transid?

1078

How is a type of file defined in the jcl that executes the cobol program?

1188

What is the function of rollback in idms?

901

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