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

registers(0-15) ,where they are going be resides., does that mean here is it resides whether real or virtual memory? and why? then why we are assign even registers(0 to 6) for FP operations????

3 7277

How can i check the object existance in RPG program without using QCMDEXC command.

IBM, JDA,

7 33420

I have to run a select query on DB2 table and show its data on CICS map. Please tell me.

2 7079

how to allocate a dynamic dataset in jcl ?

Patni, TCS,

3 16905

how to display comp3 variables reply soon ?

Patni,

4 11574

is it mandatory to give data division before procedure division ? wht happens if i give procedure division first thn data division ? reply soon

Patni,

2 8280

Can multiple CICS regions exist under one O/S?

2 5964

i have a base gdg consisting of 12 versions like jan to dec. i need to concatante this gdg to another gdg which have version 1 or to the base gdg itself can anyone give me the code pls ?

IBM,

4 9478

i have a file which contains duplicates ? my requirement is to eliminate duplicates and these elminated duplicates should be moved to another file can any code this using sort ?

IBM,

3 8627

u have passed sme charecters thru parm parameter in jcl. how do u code in cobol to recieve the values u gave in parm ?

IBM,

2 7308

wht happens if we close cursor with cursor with hold option?

Valtech,

3 12399

how can u view a vsam file using file-aid

CSC, IBM,

5 28123

can u explain gdg with example wht happens if we give limit,empty,noempty,scartch and no scartch

IBM,

1 13903

Can we write same stepname for one or more steps in on job ?

2 13571

How to Pass table from a cobol program to another cobol program and how to use that table in called program

Patni, SunGard,

8 22403

Un-Answered Questions { MainFrame }

Explain the difference between lds and esds?

1032

Using alternate indexes in batch program?

1107

What does a finish do in idms?

945

How the interaction between DB2, SQL, and QMF takes place?

1655

How to alter the parameters for the existing gdg?

1204

what is a query can be run in which mode?

1311

Discuss some of the terminology of idms.

924

How to debug a batch job when it is in messagewait(mswg) status. I know the steps for batch ebugging, but im confusing with when we submit any job for batch debug we put in held state. So here also do same thing or any other way?

1269

State the various causes of s0c1, s0c5 and s0c7.

1082

Suppose if I have updated few fields of adabas file using update command, and after that I used display to see that field get updated or not. If in display it showing nothing or record did not get updated then what can be the possible reasons?

949

What is the difference between cursor and select statement?

1101

which are the query selection criteria, which can be given in a query?

1174

Write a program to explain size error.

1199

At what point are extension eliminators mandatory?

1002

How does the jcl specify the job to os?

1157

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