To ensure a new server has the same processor baseline as the existing servers in a vSphere cluster, which strategy should be applied?

To ensure that a new server has the same processor baseline as the existing servers in a vSphere cluster, the strategy of Enhanced vMotion Compatibility (EVC) should be applied. EVC is designed specifically to allow servers with different CPU capabilities to work together in a cluster seamlessly.

When EVC is enabled, it presents a consistent CPU feature set to all virtual machines in the cluster, which helps maintain compatibility for live migrations between hosts. By doing so, EVC ensures that any new server added to the cluster meets the necessary CPU feature requirements to maintain operational consistency across all hosts, regardless of the underlying hardware differences.

This is particularly important for environments where virtual machines may need to be migrated between servers without downtime. Maintaining the same processor baseline ensures that virtual machines are not affected by potential compatibility issues that can arise from varying CPU architectures or features, thus promoting a stable and efficient virtualized environment.

The other options, such as vSphere High Availability, vSphere vMotion, and Fault Tolerance, serve different purposes within the vSphere environment, focusing on availability, workload migration, and redundancy, respectively, rather than ensuring processor compatibility.