IBM MainFrame Interview Questions
Questions Answers Views Company eMail

What happens if both JOBLIB & STEPLIB is specified ?

597

What does a disposition of (MOD,DELETE,DELETE) mean ?

654

If I have limited experience with Rexx or it's been a long time since I've used it, what kind of help is available to get me started?

535

Can I combine uni-REXX with a compiled language in my application? What application programming interfaces are available? For example, can I share variables between uni-REXX and a compiled language?

534

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

532

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

518

What is ENQ?

643

What is DEQ?

591

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

736

Mention the downsides of page level lock.

697

What is concurrency?

696

Explain the function of data manager.

626

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

707

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

566

Define check constraint.

633


Un-Answered Questions { IBM MainFrame }

Can you use max on a char column?

630


State the maximum number of tables that can be joined?

562


What is innodb buffer pool?

553


Explain the function of job statement in jcl?

634


Explain the function of //jcllib statement?

688






Define concatenating?

653


How many types of page locks can be held in db2?

583


Explain the maximum number of pcbs allowed in a psb?

3134


When you are working with the project.. once your coding is over what will u do? where u r maintaining your CR(change request) what is the format what are the documents u need to prepare while testing?

1558


Explain the function of a dd statement?

647


Explain the biggest disadvantage of using a vsam dataset?

575


Are there any set of rules for the names of the steps used in a job?

623


What does the 'cebr:cics' transactions do?

566


We can use PASS with permanent datasets also. THEN Which is the condition in which we may use PASS (instead of KEEP) with permanent data sets, while there is no need to specify UNIT and VOL for them like temporary data sets (in cas we use KEEP for permanent data sets) ?

1758


Explain db2.

605