The security term that is concerned with the same primary key existing at different classification
levels in the same database is:
A.
Polymorphism.
B.
Inheritance.
C.
Polyinstantiation.
D.
Normalization.
Explanation:
The security term that is concerned with the same primary key existing at different classification
levels in the same database is polyinstantiation. Answer Polymorphism is incorrect because
polymorphism is defined as objects of many different classes that are related by some common
superclass; thus, any object denoted by this name is able to respond to some common set of
operations in a different way. Answer Normalization is incorrect because normalization refers to
removing redundant or incorrect data from a database. Answer Inheritance is incorrect because
inheritance refers to methods from a class inherited by another subclass.