Database administrator, a person responsible for the environmental aspects of a database
Database administration, a technical function concerned with the effective use and control of a particular database and of its related applications
Design basis accident, scenario in nuclear facilities
Dynamic bandwidth allocation, telecommunications algorithm

DBA role:
He can grant the permissions to modify the database.
He can revoke the permissions given to modify the database.
The whole database is under the DBA.
He can do any modifications to data in database.