CompTIA Cloud+ Practice Test

Which type of virtualization allows multiple operating systems to run concurrently on a single physical server?

1. Network virtualization

2. Application virtualization

3. Server virtualization

4. Data virtualization

The correct answer is: Server virtualization

Server virtualization is the technology that enables multiple operating systems to run concurrently on a single physical server. This is achieved through a hypervisor, which is a layer of software that abstracts the physical hardware resources and allocates them to multiple virtual machines (VMs). Each VM operates independently, with its own operating system and applications, providing flexibility in resource management and cost savings. Server virtualization enhances efficiency as it allows for better utilization of hardware resources. Instead of maintaining separate physical servers for different operating systems or applications, organizations can consolidate their operations on fewer servers, which also simplifies management and reduces physical space requirements. The other options focus on different aspects of virtualization. Network virtualization pertains to the management of network resources through abstraction, creating virtual networks that run over physical infrastructure. Application virtualization involves isolating applications from the underlying operating system, allowing them to run without being installed directly on the OS. Data virtualization pertains to the abstraction of data from different sources for better access and analysis, rather than enabling multiple operating systems to run on a single server.