OBJECT ORIENTED DATABASE QUIZ

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

True

False

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

Relationship

Attribute

All of these

Class

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

True

False

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

Set

Dictionary

List

Bag

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An atomic literal is which of the following?

Strings

All of these

Long

Boolean

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The Object Query Language is which of the following?

Similar to SQL and uses a from-where structure

Not similar to SQL

Similar to SQL and uses a select-where structure

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

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

True

False

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

False

True

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Using OQL, you may do which of the following?

Return a specific subset of elements using a given criteria.

Return a collection of elements without duplicates.

Return an entire collection of elements including duplicates.

All of these

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An attribute's value is always literal.

False

True

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