Final answer:
The administrative boundaries for users and computers stored in a common directory database are called Organizational Units (OUs), which allow for better management and delegation of administrative tasks.
Step-by-step explanation:
The administrative boundaries for users and computers that are stored in a common directory database are called Organizational Units (OUs)
. OUs can be thought of as folders that help group and organize objects within a directory, such as users, computers, groups, and other objects. They assist in managing and applying policies and permissions to these objects. For example, an organization might have separate OUs for different departments or locations, allowing for easier management and delegation of administrative tasks.