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

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

What is the difference between ooRexx and IBM's Object REXX for Windows?

1024

When will a port of ooRexx to "XYZ" be available?

819

What is ENQ?

1005

What is DEQ?

973

How can tablespace be moved to another dasd volume that is allocated for that tablespace?

1182

Mention the downsides of page level lock.

1112

What is concurrency?

1152

Explain the function of data manager.

993

Mention a credible reason why select* is never given preference in an sql program that has been embedded.

1137

In case if at some point of time db2 is down, would that impact the pre-compilation process of a db2-cobol program?

993

Define check constraint.

1028

define clustering index.

980

List out the three types of page locks that can be held.

1093

Explain about rct.

1026

Explain correlated sub-queries.

979

Un-Answered Questions { MainFrame }

How do you access an uncatalogued dataset in a jcl?

1164

What is the mainframe testing?

912

Explain about maximum displacement?

996

does anybody know about niit technologies ? how is that company ? any body working in that company ? please answer my question.I got selected in NIIT Technologies delhi.

2921

Explain the advantage of dynamic generation of acb?

3158

Define declaration generator (dclgen).

1068

what is the other verb for release and write ?

945

Where is the vsam ksds placed?

912

What is ibm db2 database?

953

which indicator is used for read?

1076

what is the purpose of dynslt keyword?

1673

what is a logical file?

1691

What is dbms in ims?

1004

What dd statement is used to supply the name of a dataset?

1331

Which command is used to replace CDUP command in FTP IF i WANT TO USE SFTP?

2374

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