A database administrator is responsible for:

A.
defining data ownership.

B.
establishing operational standards for the data dictionary.

C.
creating the logical and physical database.

D.
establishing ground rules for ensuring data integrity and security.

Explanation:
A database administrator is responsible for creating and controlling the logical and physical database. Defining
data ownership resides with the head of the user department or top management if the data is common to the
organization. IS management and the data administrator are responsible for establishing operational standards
for the data dictionary. Establishing ground rules for ensuring data integrity and security in line with the
corporate security policy is a function of the security administrator.