What is a data dictionary?
A) It is a special file, stored in an application program, that provides instructions for processing data.
B) It is a special file, stored in data definition language, that makes a data element in one schema correspond to an element in another schema.
C) It is a special file that is required to initiate the processing of data.
D) It is a special file, stored in the database itself, that provides metadata on the description, structure, and type of each data element stored in the database.

Question

Quizplus · Accepted Answer

A data dictionary is a file that contains metadata information on the description, structure, and type of each data element stored in the database. It serves as a reference for the database developers and users to understand the meaning and characteristics of the data. A data dictionary can be stored in the database itself or in a separate file. Choice A describes a program file, while choice B describes a mapping file. Choice C is not related to the definition of a data dictionary.

What Is a Data Dictionary