Final answer:
To prevent VM sprawl, security measures such as Usage audits and Asset documentation are effective. They help in regularly reviewing VM utilization and maintaining up-to-date records to manage and track the lifecycle of VMs.
Step-by-step explanation:
The question pertains to security measures for preventing VM sprawl. VM sprawl occurs when a large number of virtual machines are deployed without proper management or oversight, which can lead to security vulnerabilities, inefficient resource usage, and increased costs. Two security measures that can help prevent VM sprawl are Usage audit and Asset documentation.
Usage audits involve regularly reviewing the utilization and configuration of virtual machines to ensure they are being used appropriately, conform to policy, and are not left running needlessly. This can include checking for idle or underutilized VMs that can be decommissioned or consolidated.
Asset documentation involves maintaining up-to-date records of all virtual machines, including their purpose, configuration, usage patterns, and ownership. This documentation is crucial for tracking the VM lifecycle and ensuring that each VM has a clear role and is not unnecessarily consuming resources.
Patch management, physical security controls, and sandboxing are important security measures as well but are not directly aimed at preventing VM sprawl.