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Object-Oriented Database - Technical MCQs

Q1:

An extent is which of the following?

A A keyword that indicates that the subclass inherits from a superclass

B A keyword that indicates that the superclass inherits from a subclass

C The set of all instances of a class within a database

D Only one instance of a class within a database

ANS:C - The set of all instances of a class within a database

No answer description is available.