OBJECT ORIENTED DATABASE QUIZ

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

False

True

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

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

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

Used to develop logical schemas

All of these

A data definition language for OODB

A method to implement a logical schema

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

False

True

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

False

True

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The reserved word enum is used for which of the following?

To define a range for a relationship.

To define a range for a class.

To define a range for an attribute.

All of these

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A relationship should be specified how in the ODL?

One direction starting with the first class

Both directions

One direction starting with the second class

Neither direction

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An ordered collection of elements of the same type are called sets.

False

True

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

True

False

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