Which VMware feature automatically balances compute and memory resources across hosts in a cluster?

Which VMware feature automatically balances compute and memory resources across hosts in a cluster?

• A. HA
• B. DRS
• C. vMotion
• D. vSAN

Answer: (B)

Automatic balancing of compute and memory across hosts in a cluster is handled by Distributed Resource Scheduler. It continuously monitors CPU and memory demand across all hosts and, when configured in automatic mode, moves virtual machines between hosts using live migrations to even out resource usage. This keeps the cluster running efficiently by preventing any single host from becoming a bottleneck and by distributing load based on current demand and configured priorities. This differs from other features: high availability focuses on keeping VMs running after a host failure, not proactive load balancing; vMotion is the live migration technology used to move VMs (and is used by DRS under the hood), but on its own it doesn’t automatically balance the cluster; and vSAN relates to storage, not compute resources. So the feature that specifically automates balancing compute and memory across the cluster is Distributed Resource Scheduler.

Automatic balancing of compute and memory across hosts in a cluster is handled by Distributed Resource Scheduler. It continuously monitors CPU and memory demand across all hosts and, when configured in automatic mode, moves virtual machines between hosts using live migrations to even out resource usage. This keeps the cluster running efficiently by preventing any single host from becoming a bottleneck and by distributing load based on current demand and configured priorities.

This differs from other features: high availability focuses on keeping VMs running after a host failure, not proactive load balancing; vMotion is the live migration technology used to move VMs (and is used by DRS under the hood), but on its own it doesn’t automatically balance the cluster; and vSAN relates to storage, not compute resources. So the feature that specifically automates balancing compute and memory across the cluster is Distributed Resource Scheduler.