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

In ProgramB there is a SBMJOB, which is a call to program C .There is also a CALL to program D from B. How would you check the program C has been executed in D?

4 11481

How do you find whether a record is locked or not?

2 7888

What is the difference between RPG/400 and RPG4

HCL,

1 13423

How do you find whether a job is a batch job or interactive?

4 10390

What you have to do in the display file when you are using message subfile?

1 6046

How to set on/off a group of indicators in a single statement?

3 11416

How can you determine the number of characters in a variable?

3 9988

Let?s consider a variable X of length 20. Move value ?ABC? to it.How to determine how many characters does X have?

1 6249

Suppose you have 3 members in a database file. How to read records from all the members without using CL (OVRDBF) i.e. Entire process should be handled exclusively in a RPG program?

7 12792

How do you do indexing in a physical file?

2 9952

Can an indexed file be accessed in arrival sequence in RPG?

3 8754

When will DUMP & DEBUG be ignored?

IBM,

3 10352

what is the necessary command needed before OPNQRYF and why?

5 27488

Can you copy the records created by the OPNQRYF to other files and how?

2 9002

What are different ways to pass data between programs and which one is the efficient way?

5 12146

Un-Answered Questions { MainFrame }

How to get the ddl of a table in db2?

1178

I have a program with an Array of 5000 occurences which is being passed from 5 sub levels to the front end screen. Thess 5 programs using each 5*2 = 10 different arrays with size as 5000. This is causing the transaction to utilize more storage consupmtion. I am looking to reduce the storage consumption. As part of that initially i thought Dynamic array may solve my problem. After viewing the comments given i see its same as normal array. IS there any other way we can resolve this issue?

1697

what are the various types of device files?

1756

What are the access modes of START statement?

1335

What Is Ddm ?

1786

What are the various error conditions seen in rexx?

983

Explore the syntax of the evaluate statement?

1021

what is a base cluster in vsam?

1185

How to fetch the last row from the table in SQL (db2)?

1705

How to check sequence on a table in db2?

1120

Hi,Please give me the the answer for these quesitons? 1.what is IFS and ICF and RAPE amd DISKET fils? explain with example please? 2.What is the difference between POST AND SPACE OPCODES? 3.Can anybody tell me default printerfile command and object type?

2649

How do u design a physical file, when you have 2 Unique fields like for eg in A student file student ID and student examination no both are unique

1072

What kind of database is db2?

1089

what is the facility that allows mainframes to be partitioned into lapars? A.z/os b.pr/sm c.vitual storaged.coupling facility

1258

What tools are available in PL/1?

1576

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