Most Databases Created Today Do Not Use the Hierarchical or Network

question 64

True/False

Most databases created today do not use the hierarchical or network models; however, these models, which are generally used with legacy mainframe systems, are still operational and so must be maintained.

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Definitions:

Converse

In logic, the condition obtained by swapping the hypothesis and conclusion of a conditional statement.

Propositions

Proclamations or claims that articulate an evaluation or belief, which may be true or untrue.

Complement

The set or amount that completes something, often used in mathematics to refer to the set of elements not in a given set.

Complement

In set theory, the complement of a set contains all elements not in the original set within a given universal set. In grammar, it is a word or phrase needed to complete the meaning of an expression.