Which of the following is a common benefit of server virtualization?

• A. Reducing hardware footprint by hosting multiple VMs on one server
• B. Increasing power consumption
• C. Increasing network latency
• D. Reducing isolation between workloads

Answer: (A)

Server virtualization lets you run multiple virtual machines on a single physical server. The most common benefit is reducing hardware footprint by hosting multiple VMs on one server. By using a hypervisor to share CPU, memory, storage, and network resources, you can consolidate workloads that would otherwise require separate servers. This leads to lower capital and operating costs, less data center space, and reduced power and cooling needs, while also enabling faster provisioning and easier management and disaster recovery through VM mobility and snapshots. The other options describe outcomes that aren’t beneficial in this context—higher power use, higher network latency, or reduced isolation are drawbacks rather than advantages of virtualization.