Which of the following BEST defines the purpose of security assessment? Response:

While assessments inform risk decisions, determining an "acceptable level of risk" is the responsibility of the Authorizing Official during the Authorize step, not the primary purpose of the assessment itself.

Security assessment, particularly within frameworks like NIST RMF, is a systematic process of evaluating the effectiveness of security controls. This evaluation focuses on whether the controls are implemented accurately, functioning reliably as designed, and achieving the intended security objectives to protect the information system and its data.

Performing oversight and monitoring is the purpose of the Monitor step (Step 6), which follows assessment, not the assessment itself.

Performing initial risk estimation and security categorization is part of the Categorize step (Step 1), which occurs at the very beginning of the RMF process, not during assessment.