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 will happen if there is no secondary allocation made for datasets?

IBM,

1168

there are seven idcams commands in vsam. Can you name and explain each of them?

IBM,

1166

Can you delete vsam files with the delete option of the disposition parameter of jcl?

IBM,

1176

in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?

IBM,

1252

explain in brief what are the 3 types of vsam files?

IBM,

1165

how can you copy to a vsam cluster?

IBM,

1212

what do you mean by a shareoptions parameter (shr) in define cluster command?

IBM,

1419

what do you mean by the repro command?

IBM,

1165

is it slower if you access a record through alternative index as compared to primary index?

IBM,

1 2756

what does a file status of 02 on a vsam signifies?

IBM,

1237

to use the rewrite command, how should the vsam file be opened?

IBM,

1368

in a cobol select statement, can you tell what is the organization for a ksds?

IBM,

1164

is oorexx compatible with rexx?

IBM,

1004

how long does the install of oorexx take?

IBM,

1066

can I port my existing applications from the mainframe or os/2? Will there be extensive changes required to do this?

IBM,

1034

Un-Answered Questions { MainFrame }

Explain dfsort utility?

1407

Explain the difference between external subroutine and subprogram?

1312

How do I import a csv file into db2?

1043

how to toggle between single line and multi - line display of a particular record in a subfile?

1905

how do you reference the esds vsam file formats from cobol programs

1277

How do you eliminate duplicate values in db2?

1273

Write in brief about clusters?

1040

which cics command must be issued by the application program in order to gain access to the common work area (cwa)?

1185

What is nvl in db2?

1154

What is meant by deadlock in db2?

1326

Explain the function of //jcllib statement?

1281

What is cursor in dbms?

1121

What is multi row fetch in db2?

1108

If a (+1) generation dataset is created in the first step of a job, how can it be referenced in later steps of the same job for input?

1387

What is qsam?

885

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