Final answer:
A DBMS handles multiple users through concurrency control and locking mechanisms. Transactional processing ensures consistent and reliable execution for multiple users.
Step-by-step explanation:
A DBMS (Database Management System) handles multiple users through various mechanisms such as concurrency control and locking.
Concurrency control ensures that multiple users can access the database simultaneously without causing inconsistencies or conflicts. This is achieved using methods such as locking, where a user obtains a lock on a specific data item to prevent other users from modifying it until the lock is released.
In addition, a DBMS can use transactional processing to handle multiple users. A transaction is a logical unit of work that consists of one or more database operations, and the DBMS ensures that each transaction is executed atomically, consistently, isolated, and durably, commonly referred to as the ACID properties.