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

What is open data path? And what is the difference between access path and open data path?

1 1827

How to retrieve a physical file after deleting that?

1115

Suppose I have a pf,it contains 5 members,how to access particular member data from logical file ?and what is the use of member in pf?

1054

What is the interactive job?

1023

Can we concatenate fields in physical file? If yes how can we do?

1053

What is the batch job?

987

How to know logical file belongs to which physical file without source?

1 2246

When we create a pf and did not fill up maint parameter, then by default which access path will the system take & why?

1097

What is the purpose of dd * statement in jcl?

1289

Explain the difference between record occurrence and record type in idms?

868

What is a page in idms?

866

What is a run unit in idms?

859

What is the difference between a schema and a subschema in idms?

1 1254

When you are obtaining next within a set and get a end of set return code, on what record are you now current in idms?

808

What is a set in idms? What pointers are required, what are possible? How may sets be ordered?

862

Un-Answered Questions { MainFrame }

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

1234

What is idms-restart ?

1485

Explain mdt?

1128

What is bind and rebind in db2?

1139

What is the difference between nvl and coalesce?

1065

What is adabas?

1020

How to create backup table in db2?

1091

What is the role of the data page in the db2 database?

1028

Is db2 a mainframe database?

1000

what is buffering and how does it apply to vsam files ?

1177

Suppose if there are a set of statements and each has a word “value” in it, if I want to display all these statements so that the word “value” is aligned, then how do I code this in rexx?

977

Highlight the points of differences between XCTL and START?

1236

what are the various stages of job processing?

1284

when an apllication is invoked via the exec cics start command with the from option, how does the application gain access to the common area?

1075

What is db2 bind process?

1240

For More Un-Answered { MainFrame } Questions Click Here