What condition must be true for Agentless protection to be activated automatically?

For Agentless protection to be activated automatically, it is essential that "Appliance Protection Available" is true. This condition indicates that the necessary protective mechanisms and configurations on the appliance designated to provide agentless security are operational and ready to deliver the required protection.

In environments where agentless protection is employed, such as virtualized environments using VMware or other hypervisors, the appliance acts as a centralized security point that can monitor and control the virtual machines without needing agents installed directly on those machines. When this condition is met, it ensures that the appliance can effectively manage security tasks like intrusion detection, anti-malware protection, and other essential security functions across the virtual machines it oversees.

The other options, while important in their own right, do not directly indicate that agentless protection is primed for activation. For instance, the status of the virtual machine or whether an update is available may not necessarily reflect the appliance’s capability to provide protection. Therefore, having "Appliance Protection Available" as a prerequisite is crucial for successful automatic activation of agentless protection.