正解:C
The control evaluation phase of a risk assessment is the phase where the risk practitioner evaluates the effectiveness and efficiency of the existing or planned controls that mitigate the identified risks. Controls are the actions or measures that reduce the likelihood or impact of the risks to an acceptable level. The control evaluation phase involves testing, reviewing, and auditing the controls, and identifying any gaps or weaknesses that need to be addressed. If the control evaluation phase reveals that multiple controls are ineffective, the risk practitioner's first course of action should be to determine the root cause of the control failures. The root cause is the underlying or fundamental reason that leads to the problem or issue, such as the controlfailure. By determining the root cause of the control failures, the risk practitioner can understand why the controls are not working as intended, and what factors or variables are influencing the control performance. This will help the risk practitioner to identify and implement the most appropriate and effective risk response strategy and actions, such as recommending risk remediation, comparing the residual risk, or escalating the control failures. The other options are not the first course of action, as they involve different steps or outcomes of the risk management process:
Recommend risk remediation of the ineffective controls means that the risk practitioner suggests the actions or measures that can improve or restore the effectiveness of the controls, such as by modifying, replacing, or adding the controls. This may be a useful step in the risk management process, but it is not the first course of action, as it may not address the root cause of the control failures, or may not be feasible or efficient for the enterprise's needs.
Compare the residual risk to the current risk appetite means that the risk practitioner evaluates the level of risk that remains after considering the existing or planned controls, and compares it with the amount and type of risk that the enterprise is willing to accept in pursuit of its objectives. This may be a helpful step in the risk management process, but it is not the first course of action, as it may not reflect the true or current level of risk exposure, or may not account for the uncertainties or complexities of the risks or the controls.
Escalate the control failures to senior management means that the risk practitioner communicates the control failures to the senior leaders of the enterprise, who oversee the enterprise-wide risk management program, and provide guidance and direction to the risk owners and practitioners. This may be a necessary step in the risk management process, but it is not the first course of action, as it may not provide sufficient or timely information or action to address the control failures, or may not reflect the urgency or priority of the control failures. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter 2, Section
2.3.3.1, pp. 62-63.