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?

1135

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 1842

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

1 2616

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?

961

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

1 2403

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?

942

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 2367

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

1238

Un-Answered Questions { MainFrame }

list some of the commonly used commands for debugging?

1630

which program rpg or cl is efficent to update a transaction onto a database file and why ?

1243

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

1181

How to find the list of source physical files in a library?

1119

How can you get the ksds file records into your cobol program?

1100

What is the use of mdt (modified data tag)?

1052

What is the clustering index in the db2 database?

1001

How to find the number of rows in a db2 table?

1120

Discuss about changing dataset name in proc.

1235

what are different record spacing keywords in rlu ?

1936

what is DSN in JCL and what are the parameters to declare the DSN?

1197

What does a deadlock mean in DB2?

1168

which transient data queue support ati?

1157

How to pass the parameter in parm using linkage section ? (syntax)?

1137

What guidelines should be followed to write a structured cobol prgm?

1148

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