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Object Oriented Database

Object Oriented Database
The ODMG Object Model supports only unary and binary relationships.

False
True

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

True
False

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Object Oriented Database
Using OQL, you may do which of the following?

Return an entire collection of elements including duplicates.
All of these
Return a specific subset of elements using a given criteria.
Return a collection of elements without duplicates.

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Object Oriented Database
A relationship should be specified how in the ODL?

One direction starting with the first class
Both directions
Neither direction
One direction starting with the second class

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Object Oriented Database
An attribute's value is always literal.

False
True

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

List
Dictionary
Set
Bag

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