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

Explain about open switch business continuity software?

1133

How to read and write a single record into a file. I would like to use it to enter a single 8-character piece of information and use it to put it into a variable for processing in JCL. Thank you

1076

What is the difference between copybooks and subprocedures in as400?

1360

Why we have multiple data types in As400 and why we use numeric, packed, decimal, zoned the basic difference between this?

1123

Can we move X(7) to S9(7) COMP?

1 2049

Can we change a FB file to VB file in JCL? Please help

1 1839

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

1 2615

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

1017

How to write record if no field or the field are different in physical file in rpgle ?

965

When we have a file with Duplicate records and I want to read the unique record from the file. For example a file containing Emp Name as 'Ram' and there are 3 entries of it. So how to read a unique record from File?

959

How to read a record from file where there is multiple record occurrence is available?

1 2400

Assume 2 users are using the same file and first user updates some record in the file. Will the 2nd user will be able to see the updated record or not?

940

1. If there are two programs using same file and 2 users are using the file at the same time and what can be done to allow them both to access? 2. How can remove lock from the file for accessing it by both users?

950

If I have a file with 5 record and that file has 2 Key field and I want to read the unique record of the file then how can we achieve it?

1 2362

write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

1232

Un-Answered Questions { MainFrame }

How to connect to db2 database from windows command line?

1065

959

What is a buffer in memory?

1058

Explain this error: "all record formats for externally-described file abcd ignored or dropped due to error; file ignored."?

1347

what is subfile?

1593

What do you mean by between and in? Is between inclusive of specified range values?

1092

Explain the types of perform?

1018

What are the processing modes available in ims db?

1076

In case if the user inputs the characters which turn out to be uppercase, then what is the procedure to close that condition?

1028

what is use of disp parameter in dd statement?

1099

What is meant by an attribute byte?

1048

If anyone has latest IBM Certification Dumps can you pls forwards it to me

2967

What is the syntax for FETCH in DB2 ?

1212

What is a Foreign Key?

1095

How is data retrieved from multiple tables using a single sql statement?

1029

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