16. Information systems and organizations do not just influence each other; they create each other.

A. True
B. False

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17. Adding null columns to a table is straightforward.

A. True
B. False

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18. The NOT EXISTS keyword will be true if any row in the subquery meets the condition.

A. True
B. False

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19. Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database.

A. True
B. False

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20. The EXISTS keyword will be true if any row in the subquery meets the condition.

A. True
B. False

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