A risk heat map is a visualization tool that shows the likelihood and impact of different risks on a matrix, using colors to indicate the level of risk. A risk heat map can help prioritize the risks that need the most attention and resources, and support the decision making and planning process for risk management. Mapping open risk issues to an enterprise risk heat map best facilitates risk response, which is the process of selecting and implementing the appropriate actions to address the risks. Risk response can include strategies such as mitigating, transferring, avoiding, or accepting risks. By mapping open risk issues to a risk heat map, an organization can identify the most suitable risk response for each risk, based on the risk appetite, criteria, and objectives. A risk heat map can also help evaluate the effectiveness and efficiency of the risk response, by showing the change in the level of residual risk after the risk response has been executed. References = What Is a Risk Heat Map & How Can It Help Your Risk Management Strategy, What Is a Risk Heat Map, and How Can It Help Your Risk Management Strategy, Risk Map (Risk Heat Map), How To Use A Risk Heat Map.

A cost-benefit analysis is the best guidance when selecting an appropriate risk treatment plan. A risk treatment plan is a document that describes the actions or measures that are taken or planned to modifythe risk, such as reducing, avoiding, transferring, or accepting the risk1. Selecting an appropriate risk treatmentplan means choosing the most suitable and effective option for addressing the risk, based on the organization's objectives, strategies, and risk criteria2. A cost-benefit analysis is a method of comparing the benefits and costs of different alternatives or options, and selecting the one that maximizes the net benefit or value3. A cost-benefit analysis is the best guidance when selecting an appropriate risk treatment plan, because it helps to:
Evaluate the feasibility, effectiveness, and efficiency of the risk treatment options, and compare them against the organization's risk appetite and tolerance; Balance the benefits and costs of the risk treatment options, and consider both the quantitative and qualitative aspects of the risk and the risk response; Optimize the use of the organization's resources and capabilities, and ensure that the risk treatment options are aligned and integrated with the organization's goals and values; Support the risk decision making and prioritization, and provide a rational and transparent basis for selecting the best risk treatment option. The other options are not the best guidance when selecting an appropriate risk treatment plan, as they are either less comprehensive or less relevant than a cost-benefit analysis. A risk mitigation budget is a document that allocates the financial resources for implementing and maintaining the risk mitigation actions or measures4. A risk mitigation budget can help to ensure the availability and adequacy of the funds for the risk treatment options, as well as to monitor and control the risk treatment expenditures. However, a risk mitigation budget is not the best guidance when selecting an appropriate risk treatment plan, as it does not address the benefits or value of the risk treatment options, or the suitability or effectiveness of the risk treatment options. A business impact analysis is a method of estimating the potential effects or consequences of a risk on the organization's objectives, operations, or performance5. A business impact analysis can help to assess the severity and priority of the risk, as well as to identify the critical assets and resources that are involved or impacted by the risk. However, a business impact analysis is not the best guidance when selecting an appropriate risk treatment plan, as it does not address the costs or feasibility of the risk treatment options, or the alternatives or options for the risk treatment. A return on investment is a metric that measures the profitability or efficiency of an investment, project, or activity, by comparing the benefits and costs of the investment, project, or activity6. A return on investment can help to evaluate the performance and effectiveness of the risk treatment options, as well as to compare the risk treatment options with other investments, projects, or activities. However, a return on investment is not the best guidance when selecting an appropriate risk treatment plan, as it does not address the qualitative or intangible aspects of the risk and the risk response, or the risk appetite and tolerance of the organization. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter 2, Section 2.1.8, Page 61.

Emerging risk is a risk that is new or evolving, and has the potential to significantly affect the enterprise's objectives, performance, or reputation. Emerging risk can arise from changes in the internal or external environment, such as technological innovations, regulatory developments, or social trends. The best way to support communication of emerging risk is to include it on the next enterprise risk committee agenda. The enterprise risk committee is a group of senior executives who oversee the enterprise-wide risk management program, and provide guidance and direction to the risk owners and practitioners. By including the emerging risk on the agenda, the risk practitioner can ensure that the enterprise risk committee is aware of the risk, its causes, impacts, and likelihood, and can decide on the appropriate risk response strategy and actions. The other options are not the best way to support communication of emerging risk, as they involve different aspects of the risk management process:
* Update residual risk levels to reflect the expected risk impact means that the risk practitioner adjusts the risk levels after considering the existing or planned risk responses. This may not be feasible or accurate for emerging risk, as the risk responses may not be defined or implemented yet, or may not be effective for the new or evolving risk.
* Adjust inherent risk levels upward means that the risk practitioner increases the risk levels before considering any risk responses. This may not reflect the true nature or magnitude of the emerging risk, as the inherent risk levels are based on the assumptions and estimates of the risk practitioner, and may not account for the uncertainties or complexities of the emerging risk.
* Include it in the risk register for ongoing monitoring means that the risk practitioner records and tracks the emerging risk, its causes, impacts, likelihood, responses, and owners. This is an important step in the risk management process, but it does not necessarily support communication of the emerging risk, as the risk register may not be accessible or visible to all the relevant stakeholders, or may not be updated or reviewed frequently enough to capture the changes in the emerging risk. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter 1, Section 1.2.2.2, pp. 21-22.

According to the How Important Is Source Code Escrow - ISACA article, the purpose of requiring source code escrow in a contractual agreement is to ensure that the source code is available if the vendor ceases to exist. Source code escrow is the deposit of the source code of software with a third-party escrow agent, who releases it to the licensee only if certain conditions are met, such as the bankruptcy, merger, or acquisition of the licensor. This arrangement protects the licensee from losing access to the software support and maintenance, and allows them to continue using and modifying the software as needed. Therefore, the answer is B. ensure that the source code is available if the vendor ceases to exist. References = How Important Is Source Code Escrow - ISACA

This KPI measures how well the server patch management process meets the agreed-upon standards and expectations for timeliness, quality, and security. It reflects the efficiency and effectiveness of the patch deployment and the compliance with the patch policy. It also helps to identify and address any issues or delays that may affect the patching performance.
References
*Patch Management KPI Metrics - Motadata
*KPI Examples for Patch and Vulnerability Management - Heimdal Security
*Measuring the Effectiveness of Your Patch Management Strategy - Automox