Which of the following is also referred to as a lockdown or hardening guide?

A Security Configuration Checklist is often referred to as a lockdown or hardening guide because its primary purpose is to provide a detailed set of security controls and configurations that are to be implemented on systems to enhance their security posture. These checklists outline specific settings and procedures that help mitigate vulnerabilities and reduce the attack surface of a system. By following a comprehensive security configuration checklist, organizations can ensure that their systems are not only secure but also compliant with relevant security standards and regulations.

In contrast, the other options do not serve the same function. The Risk Management Framework is focused on identifying, assessing, and managing risks rather than providing specific configurations. The Threat Assessment Protocol involves evaluating potential threats and vulnerabilities, but it doesn’t focus on how to secure systems. Lastly, an Incident Response Plan is designed to guide an organization in responding to and recovering from a security incident, rather than providing a security setup guide. Thus, the Security Configuration Checklist stands out as the document that is synonymous with a lockdown or hardening guide.