1z0-071 Exam Dumps | Which two are true about the data dictionary?

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Question 110/139

Which two are true about the data dictionary?

A. Base tables in the data dictionary have the prefix DBA_.

B. All user actions are recorded in the data dictionary.

C. The data dictionary is constantly updated to reflect changes to database objects, permissions, and data.

D. All users have permissions to access all information in the data dictionary by default

E. The SYS user owns all base tables and user-accessible views in the data dictionary.

Correct Answer: C,E

C). True, the data dictionary is constantly updated to reflect changes to the metadata of the database objects, permissions, and structures, among other things.E. True, the SYS user owns all base tables in the data dictionary. These base tables underlie all data dictionary views that are accessible by the users.
A, B, and D are not correct because: A. Base tables do not necessarily have the prefix DBA_; instead, DBA_ is a prefix for administrative views that are accessible to users with DBA privileges. B. The data dictionary records metadata about the actions, not the actions themselves. D. Not all users have access to all information in the data dictionary. Access is controlled by privileges.
References:
* Oracle documentation on data dictionary and dynamic performance views: Oracle Database Reference
* Understanding the Oracle data dictionary: Oracle Database Concepts

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