In contemporary databases the top level of the hierarchy consists of ______, each of which can contain _____. Options: A . &nbspCatalogs, schemas B . &nbspSchemas, catalogs C . &nbspEnvironment, schemas D . &nbspSchemas, Environment

In contemporary databases the top level of the hierarchy consists of _____

Question

In contemporary databases the top level of the hierarchy consists of ______, each of which can contain _____.

Options:

A . Catalogs, schemas

B . Schemas, catalogs

C . Environment, schemas

D . Schemas, Environment

Answer: Option A

Catalogs, schemas

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