Which two are true about the data dictionary? (Choose two.)
Which two are true about the data dictionary? (Choose two.)
The data dictionary is a set of read-only tables that provide information about the database, and it is constantly updated to reflect any changes to the database objects, permissions, and data. The SYS user owns all the base tables and user-accessible views in the data dictionary, which contain critical metadata about the database. Therefore, options A and D are correct.
AD is correct
AD correct see discussion linked below
https://www.examtopics.com/discussions/oracle/view/9425-exam-1z0-071-topic-1-question-230-discussion/