OBJECT ORIENTED DATABASE QUIZ

An atomic literal is which of the following?

All of these

Long

Strings

Boolean

TRUE ANSWER : ?
YOUR ANSWER : ?

Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an unordered collection of elements that may contain duplicates?

Set

Bag

List

Dictionary

TRUE ANSWER : ?
YOUR ANSWER : ?

The keyword "inverse" is used in which of the following?

Relationship

Class

Attribute

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

ODL supports which of the following types of association relationships?

Unary and Binary and Ternary and higher

Unary

Unary and Binary

Unary and Binary and Ternary

TRUE ANSWER : ?
YOUR ANSWER : ?

The ODMG Object Model requires that a relationship be specified in both directions.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an ordered collection of elements of the same type?

Set

Dictionary

List

Bag

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is true concerning the following statement: class Manager extends Employee

Manager is an abstract class and a subclass.

Manager is a concrete class and a superclass.

Manager is an abstract class and a superclass.

Manager is a concrete class and a subclass.

TRUE ANSWER : ?
YOUR ANSWER : ?

Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

An attribute's value is always literal.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

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