Which of the following documents is part of the primary NIST RMF documentation?

The primary NIST Risk Management Framework (RMF) documentation is designed to guide organizations in managing cybersecurity risk. NIST SP 800-53A is specifically focused on the assessment of security and privacy controls. It provides a structured approach for privacy and security control assessments to determine the effectiveness of these controls in mitigating risks.

By being part of the RMF documentation, 800-53A supports the overall process of categorizing information systems, selecting appropriate security controls, implementing them, assessing their effectiveness, authorizing the systems, and continuously monitoring the controls. It connects to NIST SP 800-53, which outlines the necessary security controls, thus forming an integral part of the RMF documentation.

Other choices like ISO 27001 and COBIT 5 are frameworks related to information security and governance but do not fall under NIST’s specific RMF documentation. NIST SP 800-53 outlines the actual controls to be implemented, while 800-53A evaluates the effectiveness of those controls, making it central to the risk management process defined by NIST.