IBM MainFrame Interview Questions
Questions Answers Views Company eMail

Can we use empty VSAM as input?

Convergys, Kanbay,

9 24148

What is the use of TRT instruction and how it is working?

HCL, IBM, Wipro,

7 30941

What is GDG and what is the maximum limit of versions that can be created?

Convergys,

9 45867

What is the use of the utility DFSRRC00 in the JCL?

Convergys,

2 37082

If there are five steps in a JCL i have to execute the 3rd step, bypass the 4th step and execute the 5th step how do i do this?

Cognizant, Convergys, IBM, TCS, Wipro,

13 67522

What is the use of DUMMY statement in the JCL? What is the use of DUMMY Utility in the JCL?

Convergys,

12 65373

what is the difference between the JCLLIB and JOBLIB ,and where do we use it ?

Convergys,

3 18427

Given a input file with duplicates how to remove the duplicate records from the file using JCL?

CDS, Convergys, TCS,

6 29360

What is the difference between START and XCTL? How do you determine when to use either option?

2 15369

how can we establish a link between two maps using a cobol application program....lets say how can u use 'back' in a map ..to come back on previous .

Attra Infotech,

5 14260

In the RECON, what always sets the IC NEEDED flag on for a registered DB?

3 5982

What is the difference between HDAM & HIDAM DB types and when would you use each?

1 12586

What are the valid recovery points?

1 4299

When do you do Build DBD, PSB for making changes in ACBLIB?

1 7263

Which DB access method (OSAM or VSAM) is used for primary index or secondary index and why?

1 5727


Un-Answered Questions { IBM MainFrame }

How is the sorting of vsam files carried?

597


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

612


What is rmode(any) ?

680


How to alter the parameters for the existing gdg?

710


What are the types of important programs that are used in the cics?

609






write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

701


What is the physical storage length of the data types date, time, and timestamp?

604


List some fields from sqlca?

609


Define where and its usage?

520


Can you explain exec cics handle condition command?

582


when a task suspends all the handle conditions via the push command, how does the task reactivate all the handle conditions?

690


I have 60 steps in the JCL and want to Execute Only First from PROC by overriding in JCL ?

1347


What is non-conventional programs?

585


what do you mean by a vsam split?

579


What does runstats do in db2?

607