What describes server virtualization?

Server virtualization refers to the process of partitioning a single physical server into multiple virtual servers, each operating independently with its own operating system and applications. This is accomplished through virtualization technology, which allows a hypervisor to manage these separate environments on the same hardware, leading to improved resource utilization and operational efficiency.

This approach enables organizations to optimize their hardware investments, as they can run several virtual servers on a single physical machine, reducing hardware costs and power consumption. It also enhances flexibility and scalability, allowing for easier deployment, management, and isolation of applications.

In contrast to combining multiple servers into a single physical server, which may refer more to server consolidation rather than virtualization, the key aspect of virtualization is the ability to run multiple distinct server environments simultaneously on shared physical resources. The options suggesting the creation of a backup server or eliminating the need for server software do not accurately capture the essence of what server virtualization entails. Server virtualization specifically focuses on creating virtual instances of servers that can run concurrently, utilizing the existing physical server's resources effectively.