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MainFrame Interview Questions
Questions Answers Views Company eMail

What happens when you open an empty VSAM file in a COBOL program for input?

IBM,

5 26792

How do you initialize a VSAM file before any operation? a VSAM with alternate index?

IBM,

2 14288

What does a file status of 02 on a VSAM indicate?

IBM,

1 7512

How do you calculate record size of an alternate cluster? Give your values for both unique and nonunique.

IBM,

1 8399

What is the difference between sequential files and ESDS files?

IBM,

1 7963

How do you load a VSAM data set with records ?

IBM,

2 7384

How do you define a GDG ?

IBM,

1 4587

Do all versions of the GDG have to be of the same record length ?

IBM, iNautix,

3 12042

How are different versions of GDG named ?

IBM,

2 4743

Suppose 3 generations of a GDG exist. How would you reference the 1st generation in the JCL?

IBM,

2 13861

Suppose a generation of GDG gets created in a particular step of a proc. How would you refer the current generation in a subsequent step? What would be the disposition of this generation now?

IBM,

2 5981

What more info you should give in the DD statement while defining the next generation of a GDG?

IBM,

1 5259

Assuming that the DEFINE JCL is not available, how do you get info about a VSAM file's organisation?

IBM,

1 5154

During processing of a VSAM file, some system error occurs and it is subsequently unusable . What do you do ?

 1 6343

How do you fix the problem associated with VSAM out of space condition?

IBM,

1 8795

Un-Answered Questions { MainFrame }

when do you use f-spec. Continuation line ?

1095

What is the LINKAGE SECTION used in COBOL?

1035

What is a bind card?

770

What are the some important fields in the eib block?

707

I have a File that has duplicate records. I need only those records that occur more than thrice.?

8954




what if I need to have the same application running on multiple platforms, such as unix and the mainframe? Does that mean I have to maintain two separate sources?

586

What is the term conversational programs means?

654

is it possible, in the same cgi, to run more than one gethtml or gethtmlifs?

680

How to connect to db2 database from windows command line?

651

what is use of disp parameter in dd statement?

739

can oorexx run normal rexx programs?

691

A join logical file has how many record formats?

702

what is DD statement is used in JCL?

764

Explain the difference between the into and the set option in the exec cics receive map command?

659

How to view db2 table structure?

683

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