What is a primary function of VMware DRS in a cluster environment?

The primary function of VMware Distributed Resource Scheduler (DRS) in a cluster environment is to balance workloads by moving virtual machines (VMs) between hosts. DRS automates the allocation of resources across a cluster of ESXi hosts based on demand and resource availability. It analyses the resource usage of VMs and the capacity of the hosts, allowing it to load-balance the VMs effectively.

When a host becomes overloaded or when VMs require more resources than are currently available on their host, DRS can automatically migrate VMs to other hosts with more available resources, using vMotion technology. This ensures that all VMs have the necessary resources to operate efficiently while optimizing the overall performance of the cluster.

The other options are related to different functionalities and do not align with the primary purpose of DRS. Data protection involves backup solutions, monitoring hardware health pertains to managing infrastructure health, and enhancing network security is focused on securing data traffic and access within the data center.