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Object-Oriented Data Modeling - Technical MCQs

Q1:

An abstract class is which of the following?

A A class that has direct instances, but whose descendants may have direct instances.

B A class that has no direct instances, but whose descendants may have direct instances.

C A class that has direct instances, but whose descendants may not have direct instances.

D A class that has no direct instances, but whose descendants may not have direct instances

ANS:B - A class that has no direct instances, but whose descendants may have direct instances.

No answer description is available.