OBJECT ORIENTED DATABASE QUIZ

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

False

True

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

False

True

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A relationship should be specified how in the ODL?

One direction starting with the first class

One direction starting with the second class

Both directions

Neither direction

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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 an attribute.

All of these

To define a range for a class.

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

False

True

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Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

False

True

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Which of the following is true concerning an ODBMS?

They are most useful for traditional, two-dimensional database table applications.

They are overtaking RDBMS for all applications.

They have the ability to store complex data types on the Web.

All of these

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

True

False

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

Bag

List

Dictionary

Set

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

False

True

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