正解:B
Explanation
Risk management dashboards are the MOST effective in monitoring an organization's existing risk because they provide a visual and interactive representation of the key risk indicators (KRIs) and metrics that reflect the current risk posture and performance of the organization. Risk management dashboards can help to communicate the risk information to various stakeholders, identify trends and patterns, compare actual results with targets and thresholds, and support decision making and risk response12. Periodic updates to risk register (A) are important to maintain the accuracy and relevance of the risk information, but they are not the most effective in monitoring the existing risk because they do not provide a real-time or dynamic view of the risk situation. Security information and event management (SIEM) systems are effective in monitoring the security events and incidents that may indicate potential or actual threats to the organization, but they are not the most effective in monitoring the existing risk because they do not provide a comprehensive or holistic view of the risk context and impact. Vulnerability assessment results (D) are effective in monitoring the weaknesses and exposures of the organization's assets and systems, but they are not the most effective in monitoring the existing risk because they do not provide a quantitative or qualitative measure of the risk likelihood and consequence. References = 1: CISM Review Manual 15th Edition, page 316-3171; 2: CISM Domain 2:
Information Risk Management (IRM) [2022 update]2