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

i have 1000 records in input file and i want to sort it and the first 200 records to be placed in output file. how to do that??

L&T,

14 26561

what is SYSPLEX,PARALLEL SYSPLEX & MONOSYSPLEX ?

IBM, TCS,

3 21451

is there any other way to install s/w in mainframe apart from smp/e system?

2642

what is the general use of PARM? Give an explanation about the system defined parameters that could be passed through this PARM like XREF,LIST,LET,APOST,RENT etc..

Cognizant,

3 13057

why jobstep can't be more than 255 and for GDG has max limit 255 . Is there any relation between the two

IBM, Perot Systems,

1 7924

Which command we can use to update a physical file using c.l pgm?

Ocwen,

19 52503

What is the purpose of 'CPYTOIMPF' command?

Aditya Birla, Redington,

6 22536

CAN WE INSERT FIELD IN PHYSICAL FILE BY USING OPNQRYF?

4 13166

YOU CAN DELETE THE RECORD SPACE PERMENANTLY IN PHYSICALFILE THROUGH CL?

4 12635

is it possible to create a join logical file using two join logical files ? give exact reason for your answer

Ocwen,

4 13440

WHERE DO WE USE COMIT KEYWORD IN AN RPG PROGRAM? YOU MADE SOME CHANGES TO DATABASE BUT YOU DON'T WANT TO SAVE THOSE CHANGES NOW? HOW DO YOU HANDLE THIS ONE?

2 13881

HOW DO YOU DISPLAY A DISPLAYFILE AT OTHER WORKSTATION? CAN WE MOVE A PHYSICAL FILE? WITHOUT MOVING A FILE?

2 6852

WHAT ALL THE CONDITIONES REQUIRED FOR USING OPEN OPCODE ON A FILE?

2 7827

If a jcl has just 1 step and the input file to this does not exist, then what will happen if we submit this job?

3 10007

how can we view the entire objects and its types in a pgm?

Mind Tree,

7 14329

Un-Answered Questions { MainFrame }

What is PL/I?

1418

what is the version of os/400 that we have?

1658

Step 1 RC 4 Step 2 Step 3 I want to know the COND parameter which can be coded in step 2 or 3. Step 2 should be executed based on Step 1 RC and Step 3 should not be executed based on step 1's RC

4925

cics command level is?

1215

how can you detect and handle a record lock situation?

2004

what is the meaning of dynamic processing in vsam?

1070

What is the pcp in the cics?

950

What do you understand by the terms: joblib and steplib?

1190

How many maximum base registers we can have in a single program?

1120

Categorize the mainframe manual testing?

996

What do you mean by rollback?

998

What are the contents of dclgen?

1122

Can you define bms?

1059

Define autostatus in idms?

865

What is inspect and what is it used for?

986

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