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Question
_________________security breaches include database access by computer viruses and by hackers whose actions are designed to destroy or alter data.a. Debilitative
b. Preserving
c. Corrupting
d. Destructive
Answer
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Related questions
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A dependency of one nonprime attribute on another nonprime attribute is a partial dependency.
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a. True
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a. True
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a. True
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a. True
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Normalization is a process that is used for changing attributes to entities.
a. True
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Overlapping subtypes are subtypes that contain_______--- subsets of the supertype entity set.a. nullb. exclusivec. solitaryd. nonunique
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a. Subtype sets are unique.
b. Supertype has optional subtypes.
c. Subtype discriminators cannot be null.
d. Subtype does not have a supertype.
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The hierarchical model is software-independent.a. Trueb. False