CompTIA Cloud+ Practice Test

Which action is NOT a recommendation for hardening a public cloud security posture?

1. Install antivirus protection software

2. Shut down unused services

3. Allow all storage volumes' authenticated users full access

4. Implement a host-based firewall or security groups

The correct answer is: Allow all storage volumes' authenticated users full access

The action that is not recommended for hardening a public cloud security posture involves granting all storage volumes' authenticated users full access. Allowing full access to authenticated users poses significant security risks, as it does not enforce the principle of least privilege, which is essential in maintaining a secure environment. Security best practices dictate that access should be limited to only those users and services that require it for their specific tasks. By granting full access, you expose sensitive data and resources to unnecessary risks, including unauthorized data breaches and potential loss of integrity. In contrast, the other actions—installing antivirus protection software, shutting down unused services, and implementing a host-based firewall or security groups—are proactive measures that enhance security. Antivirus software helps to detect and eliminate malware, shutting down unused services reduces potential attack vectors, and firewalls or security groups regulate traffic to and from resources, providing an additional layer of defense. These actions are integral to fortifying the security posture of a public cloud environment.