Object Oriented Database - MCQ Questions and answers- Technical Aptitude

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21.
Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

A. True

B. False

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22.
A collection of literals or object types is called a bag.

A. True

B. False

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23.
An attribute's value is either a literal or an object identifier.

A. True

B. False

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24.
Database objects are almost always transient.

A. True

B. False

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25.
An attribute's value is always literal.

A. True

B. False

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26.
Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

A. True

B. False

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27.
If you know all the possible values that an attribute can have, you can enumerate those values in ODL.

A. True

B. False

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28.
You may specify an object identifier with only one unique tag name.

A. True

B. False

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29.
In ODL, you specify an operation using parentheses after its name.

A. True

B. False

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30.
An ordered collection of elements of the same type are called sets.

A. True

B. False

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