OBJECT ORIENTED DATABASE QUIZ

Using ODL, you can define which of the following?

All of these

Operation

Attribute

Structure

TRUE ANSWER : ?
YOUR ANSWER : ?

Using OQL, you may do which of the following?

All of these

Return an entire collection of elements including duplicates.

Return a collection of elements without duplicates.

Return a specific subset of elements using a given criteria.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

A data definition language for OODB

A method to implement a logical schema

Used to develop logical schemas

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Identify the class name for the following code: ABC123 course();

All of these

course()

ABC123

course

TRUE ANSWER : ?
YOUR ANSWER : ?

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

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

ODL supports which of the following types of association relationships?

Unary and Binary

Unary and Binary and Ternary and higher

Unary and Binary and Ternary

Unary

TRUE ANSWER : ?
YOUR ANSWER : ?

Before specifying a key for a class, you must specify its extent.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

An attribute's value is always literal.

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 relationship should be specified how in the ODL?

One direction starting with the second class

One direction starting with the first class

Neither direction

Both directions

TRUE ANSWER : ?
YOUR ANSWER : ?