IBM MainFrame Interview Questions
Questions Answers Views Company eMail

What is the maximum number of fields allowed per segment and what is the maximum number of fields per database?

622

What is the advantage of creating the acbs well ahead of time?

639

How many root segments do we have per database record?

623

What information does a psb contain?

603

Explain acbgen process?

644

What are the main control blocks available in ims db?

643

What are the advantages and disadvantages of a hierarchical database?

625

What is ims (db/dc)?

614

What is dbd?

595

Which languages does ims support / application program languages?

577

What is meant by mpp mode?

600

What is meant by batch dl/i mode?

586

What is the maximum number of levels allowed in ims db?

550

Explain ims software environment?

598

Portfolio analysis application is an example of?

627


Un-Answered Questions { IBM MainFrame }

What is the function of dd disp parameter?

660


The disp in the JCL is MOD and the program opens the file in OUTPUT mode. What happens ? The disp in the JCL is SHR and the pgm opens the file in EXTEND mode. What happens ?

949


what is need of start 0? In steed of

678


Why is free space left in ksds dataset?

605


Define cedf?

570






what is a corelated subquerry?

662


What is a ca split?

604


What is the difference between pct and fct?

659


How is data passed from a calling program to an assembler called program?

634


How to write a IDMS code to find whose employee last name is starting with J and first name starts with H?

980


In a CICS program, how will you read a VSAM file?

651


With the use of an alternate index, how is a VSAM file accessed?

646


What is the job entry system used in your project? based on what criteria the sequence of jobs are picked if priority is not mentioned in the job card?

1811


How to List the Available Tables?

1280


what is the other verb for release and write ?

562