Answer:
Separation of Duties
Step-by-step explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to effectively and efficiently create, store, modify, retrieve, centralize and manage data or informations in a database. Thus, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
Generally, a database management system (DBMS) acts as an intermediary between the physical data files stored on a computer system and any software application or program.
Separation of duties can be defined as a strategic process which typically involves assigning specific tasks or responsibilities to certain employees and no one is expected to take the role of another.
In this scenario, you assigned the task of conducting database backups only to an administrator while another co-worker is saddled with the responsibility of perform backup restores only. Thus, this security principle is called the separation of duties.