CompTIA CASP+ Practice Test

What precaution should be taken to harden network devices in case of VMEscape?

1. Virtual servers should only be on the same physical server as others in their network segment

2. Keep all backup systems separate from the main network

3. Implement complex passwords for all device access

4. Disable all unnecessary services on network devices

The correct answer is: Virtual servers should only be on the same physical server as others in their network segment

The correct approach for hardening network devices in the event of VMEscape is to disable all unnecessary services on network devices. This practice minimizes the attack surface by reducing the number of potential vulnerabilities that could be exploited by attackers. When unnecessary services are running, they may provide additional entry points for exploits or misconfigurations that could be leveraged in an attack. By only allowing essential services to operate, the overall security posture of the device is strengthened, making it more resilient against VMEscape threats, which involve the risk of virtual machines escaping their intended environment to affect the underlying infrastructure or other VMs. Other options, while they may enhance security in various contexts, do not directly address the unique risks associated with VMEscape or may not be as effective as turning off unnecessary services. For instance, keeping backup systems separate is good practice but doesn't specifically mitigate threats related to virtual environments. Implementing complex passwords is important for access control, yet if services that could be exploited are still enabled, the risk remains. Similarly, while having virtual servers on the same physical server in a network segment could seem safe, it does not effectively reduce risk in a scenario like VMEscape, where the primary concern involves how isolated virtual machines are from each other and the host