Which of the following is true concerning the following statement: class Manager extends Employee
A. Manager is a concrete class and a superclass.
B. Manager is a concrete class and a subclass.
C. Manager is an abstract class and a superclass.
D. Manager is an abstract class and a subclass.
Answer: Option B
This Question Belongs to Database >> Object Oriented Database
ODL supports which of the following types of association relationships?
A. Unary
B. Unary and Binary
C. Unary and Binary and Ternary
D. Unary and Binary and Ternary and higher
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
Identify the class name for the following code: ABC123 course();
A. ABC123
B. course
C. course()
D. All of the above
Using ODL, you can define which of the following?
A. Attribute
B. Structure
C. Operation
D. All of the above
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