Answer:
Without using virtual tables or similar mechanisms, a database instance can be associated with **multiple** databases. In a traditional relational database management system (RDBMS), a database instance can manage and interact with several databases concurrently. Each database within the instance is distinct, with its own set of tables, relationships, and data.
This approach allows organizations to structure their data more efficiently, separating different aspects of their operations into distinct databases. For example, a company might have separate databases for employee information, inventory management, and customer records. These databases can coexist within a single database instance, enabling efficient data organization and management.
The ability to associate with multiple databases provides flexibility and scalability. It allows applications to access and manipulate data across different domains without compromising data integrity. However, proper design and maintenance are crucial to ensure that each database remains logically independent and serves its intended purpose.
In summary, the correct answer is:
B) Multiple
