OBJECT ORIENTED DATABASE QUIZ

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 : ?

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

Bag

Set

List

Dictionary

TRUE ANSWER : ?
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ODL supports which of the following types of association relationships?

Unary and Binary

Unary and Binary and Ternary

Unary and Binary and Ternary and higher

Unary

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

Manager is a concrete class and a superclass.

Manager is an abstract class and a subclass.

Manager is a concrete class and a subclass.

Manager is an abstract class and a superclass.

TRUE ANSWER : ?
YOUR ANSWER : ?

An attribute's value is either a literal or an object identifier.

False

True

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

False

True

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Database objects are almost always transient.

False

True

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The Object Query Language is which of the following?

Similar to SQL and uses a select-from-where structure

Similar to SQL and uses a select-where structure

Similar to SQL and uses a from-where structure

Not similar to SQL

TRUE ANSWER : ?
YOUR ANSWER : ?

The Object Model supports different literal types, but does not support atomic literals, collection literals, and structured literals.

True

False

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In ODL, you specify an operation using parentheses after its name.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

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