Section: Volume C
Explanation:
The Communications Management Plan defines, in regard to risk management, who will be available to share information on risks and responses throughout the project.
The Communications Management Plan aims to define the communication necessities for the project and how the information will be circulated. The Communications Management Plan sets the communication structure for the project. This structure provides guidance for communication throughout the project's life and is updated as communication needs change. The Communication Managements Plan identifies and defines the roles of persons concerned with the project. It includes a matrix known as the communication matrix to map the communication requirements of the project.
Incorrect Answers:
A: The Resource Management Plan does not define risk communications.
C: The Risk Management Plan deals with risk identification, analysis, response, and monitoring.
D: The stakeholder management strategy does not address risk communications.

Section: Volume D

A risk scenario is a hypothetical situation that describes how a risk event could adversely affect an organization's objectives, assets, or operations. A risk scenario can be used for risk analysis, which is the process of estimating the likelihood and impact of the risk event, and evaluating the effectiveness and efficiency of the risk response1.
One of the essential components of a risk scenario is the threat type, which is the source or cause of the risk event. The threat type can be classified into various categories, such as natural, human, technical, environmental, or legal. The threat type can help to define the characteristics, motivations, capabilities, and methods of the risk event, and to identify the potential vulnerabilities and exposures of the organization. The threat type can also help to determine the frequency and severity of the risk event, and to select the appropriate risk response strategies and controls23.
The other options are not the components of a risk scenario, but rather the outcomes or inputs of risk analysis.
Risk appetite is the amount and type of risk that an organization is willing to accept in pursuit of its objectives. Risk appetite can help to guide the risk analysis by providing a high-level statement of the desired level of risk taking and tolerance4. Risk tolerance is the acceptable variation in the outcomes related to specific objectives or risks. Risk tolerance can help to measure the risk analysis by providing quantitative or qualitative indicators of the acceptable range of risk exposure and performance4. Residual risk is the remaining risk after the risk response has been implemented. Residual risk can help to monitor the risk analysis by providing feedback on the effectiveness and efficiency of the risk response and the need for further action. References =
* Risk Analysis - ISACA
* Threat - ISACA
* Threat Modeling - ISACA
* Risk Appetite and Risk Tolerance - ISACA
* [Residual Risk - ISACA]
* [CRISC Review Manual, 7th Edition]

The most important information to include when reporting the effectiveness of risk management to senior management is the changes in residual risk levels against acceptable levels, as it indicates how well the risk management process and activities have reduced the risk exposure and impact to the level that is aligned with the risk tolerance and appetite of the organization. The other options are not the most important information, as they are more related to the drivers, factors, or outcomes of risk management, respectively, rather than the effectiveness or value of risk management. References = CRISC Review Manual, 7th Edition, page 109.