How does server virtualization work, and what are the benefits and potential drawbacks of using virtual servers compared to physical servers?

Server virtualization involves creating multiple virtual servers on a single physical server using a hypervisor. Benefits include better resource utilization, easier scalability, simplified management, and reduced hardware costs. However, potential drawbacks include performance overhead from the hypervisor, increased complexity in managing virtual environments, and potential security vulnerabilities if the hypervisor or virtual machines are not properly secured.