Which feature allows a VM to automatically restart in another host if the current host fails?

The feature that enables a virtual machine (VM) to automatically restart on another host in the event of a failure on its current host is High Availability. High Availability (HA) is a critical component in VMware environments that focuses on minimizing downtime by ensuring that VMs remain operational even if a host experiences issues.

When enabled, HA continuously monitors the hosts within a cluster. If it detects that a host has become unresponsive, HA will automatically restart the VMs running on that host on other available hosts within the cluster. This process helps to maintain service availability and reduce the impact of hardware or software failures on the overall system.

Load Balancing, while important for distributing workloads evenly across hosts to optimize resource utilization, does not directly address the situation of a host failure and does not facilitate automatic VM restarts. Resource Allocation refers to the management of CPU, memory, and storage resources among VMs but does not manage host failures directly. A Snapshot is a point-in-time capture of a VM's state, used primarily for backup and recovery purposes, and does not provide failover capabilities.

In summary, High Availability is specifically designed to protect workloads against host failures by automatically migrating and restarting VMs on functional hosts, ensuring that service continuity is maintained.