OBJECT ORIENTED DATABASE QUIZ

Using ODL, you can define which of the following?

Attribute

All of these

Structure

Operation

TRUE ANSWER : ?
YOUR ANSWER : ?

If you know all the possible values that an attribute can have, you can enumerate those values in ODL.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

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

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

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

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

The object definition language (ODL) is which of the following?

A method to implement a logical schema

All of these

A data definition language for OODB

Used to develop logical schemas

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 an abstract class and a superclass.

Manager is a concrete class and a superclass.

Manager is a concrete class and a subclass.

TRUE ANSWER : ?
YOUR ANSWER : ?

ODL supports the abstract keyword for classes and operations.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

You may specify an object identifier with only one unique tag name.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

A collection of literals or object types is called a bag.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

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

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

↑