Note that common tasks are listed toward the top, and less common tasks are listed toward the bottom. According to O*NET, what common tasks are performed by Database Administrators? Check all that apply.

managing large teams of people to complete complex long-term projects
conducting surveys to determine which customers to market products to
modifying existing databases and database management systems
designing new arrangements of desks and office equipment for efficiency
testing programs or databases and correcting errors
planning, coordinating, and implementing security measures to safeguard information