What is the concept of 'multi-tenancy' in Oracle Autonomous Database?

The concept of 'multi-tenancy' in Oracle Autonomous Database refers to the ability to host multiple databases in a single infrastructure instance. This architecture allows several databases to share the same physical resources while maintaining their own separate, secure environments. Each tenant, or database instance, can be managed independently, yet they all run on a shared set of resources including CPU, memory, and storage.

This functionality enhances resource utilization and efficiency as it allows for better scaling and management of databases, making it particularly advantageous for cloud environments. Multi-tenancy is a foundational feature that supports various use cases, including software-as-a-service applications, where organizations can isolate their data and applications while leveraging shared infrastructure.

Other options do not accurately encompass the concept of multi-tenancy in the specific context of Oracle Autonomous Database. Managing multiple users or providing backups does not inherently relate to the ability to host multiple databases on one infrastructure, and virtualization of hardware resources, while relevant to cloud technologies, does not define the core principle of multi-tenancy itself.