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 amode(31)

1174

Explain how will you differentiate between an internal and an external sort, the pros and cons, internal sort syntax etc

1253

What is the difference between a binary search and a sequential search what are the pertinent cobol?

1138

What is a scope terminator give example?

1111

What is the difference between comp and comp-3?

1185

Difference between cobol and cobol-ii?

1279

What are literals?

1136

What kind of error is trapped by on size error option?

1241

What are the different data types in cobol?

1441

Can we redefine the field of x(200) to less than 200?

1377

What is the local-storage section?

1148

What is the difference between perform … with test after and perform … with test before?

1454

What are the different open modes available in cobol?

1193

What is the difference between subscript and index?

1 1798

What is cobol?

1238

Un-Answered Questions { MainFrame }

Can we insert update delete in view?

972

is it required that primary key values have to be unique? Do alternate key values have to be unique?

1054

what is the purpose of ovrdta (override data) keyword?

1817

What are the various data types available in db2?

1094

what the purpose of ovrdta, ovrata keywords?

1962

Define check constraint.

1078

Can we update view in db2?

1003

how do you specify page overflow indicator for printer files in rpg?

2282

Explain the three location modes?

899

What is the purpose of dd dummy statement?

1463

How dummy is used in jcl?

1149

How does jcl act on a cobol code?

1184

What is the difference between read work file 1 and read work file once? Why we are using work file once?

965

writing an sql statement from selecting records from two files using single statement and nested select statement.

1194

explain in brief how you can create a vsam file?

1135

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