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Which of the following statements is true of information technology (IT)?

When we wish to ensure that a value that appears in one relation for a given set of attributes also appears in a certain set of attributes in another relation, it can be done by _______.

Sustaining technologies are radical and unexpected breakthroughs that replace lower-end products and rapidly overtake high end products of the market.

Analysts can use software to simulate business processes and conduct “what if” experiments to assist with the analysis.

The collection of information stored in the database at a particular moment is called a/an ______ of the database.

The _____is important because databases typically require a large amount of storage space.

There are different kinds of data models. They are a collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints. Which one of the following is an example of a data model that permits the specification of data where individual data items of the same type may have different sets of attributes.

At the logical level, each record does not need to be described by a type definition.

Shards or slices of a database should be accessed from the same computer for improved performance.

Software that is freely distributed, along with the code underlying the program, so that people can access the code to improve it is known as ________.