A risk response plan is a document that outlines the actions to be taken to address the identified risk scenarios. A risk response plan should include the objectives, scope, roles and responsibilities, resources, timelines, and metrics for each risk response. Assigning ownership of the risk response plan is the most effective way to mitigate identified risk scenarios, as it ensures accountability, clarity, and communication among the stakeholders involved in the risk management process. Assigning ownership also helps to monitor and evaluate the progress and effectiveness of the risk response plan, and to make adjustments as needed. References = Risk and Information Systems Control Study Manual, Chapter 3: Risk Response and Mitigation, Section 3.3: Risk Response Plan, p. 152-155.

The HR manager is the person or entity that has the authority and responsibility to collect, process, and protect the personal data of the employees in the organization. The HR manager helps to manage the employee personal data, because they help to establish and enforce the data policies and standards for the employees, and to comply with the legal and regulatory requirements, such as the GDPR. The HR manager also helps to monitor and report on the data performance and compliance for the employees, and to identify and address any issues or gaps in the data management activities. The other options are not the best person to manage the employee personal data, although they may be involved in the process. System administrator, data privacy manager, and compliance manager are all examples of roles or functions that can help to support or implement the data management activities, but they do not necessarily have the authority or responsibility to collect, process, or protect the employee personal data

The legal and regulatory risk associated with business conducted over the Internet is driven by the laws and regulations of each individual country. Legal and regulatory risk is the risk of non-compliance or violation of the applicable laws and regulations that govern the business activities, operations, or transactions. Business conducted over the Internet involves the use of the global network of interconnected computers and devices to exchange information, goods, or services across the geographic boundaries. Business conducted over the Internet may expose the enterprise to various legal and regulatory risks, such as data protection, privacy, security, intellectual property, consumer protection, taxation, or jurisdiction issues. The legal and regulatory risk associated with business conducted over the Internet is driven by the laws and regulations of each individual country, as each country may have different or conflicting laws and regulations that apply to the business conducted over the Internet, and that may change or vary over time. The laws and regulations of each individual country may also impose different or additional obligations, requirements, or restrictions on the enterprise, and may subject the enterprise to different or multiple enforcement actions, penalties, or disputes.
The jurisdiction in which an organization has its principal headquarters, international law and a uniform set of regulations, and international standard-setting bodies are not the drivers of the legal and regulatory risk associated with business conducted over the Internet, as they do not reflect the diversity and complexity of the legal and regulatory landscape that the enterprise may face when conducting business over the Internet. References = CRISC Review Manual, 6th Edition, ISACA, 2015, page 217.

A risk map is the best method to ensure that the risk is measurable against the organization's risk appetite, as it is a graphical tool that displays the level and priority of risks based on their likelihood and impact, as well as other factors such as velocity, persistence, and urgency. A risk map can help to compare and communicate the risk levels across different business units, processes, and projects, and to align them with the organization's risk appetite and tolerance. A risk map can also help to identify the gaps and overlaps in risk management, and to support the decision making and resource allocation for risk response. A cause-and-effect diagram is a tool that helps to identify and analyze the root causes and consequences of a risk or a problem, but it does not measure the risk against the organization's risk appetite. A maturity model is a tool that helps to assess and improve the capability and performance of a process or a function, but it does not measure the risk against the organization's risk appetite. A technology strategy plan is a document that outlines the vision, goals, and objectives of the organization's use of information and technology, but it does not measure the risk against the organization's risk appetite. References = Risk and Information Systems Control Study Manual, Chapter 3: IT Risk Assessment, page 97.

The most important factors to consider when evaluating a number of potential controls for treating risk are the residual risk and the cost of control. Residual risk is the risk that remains after the implementation of the controls. Cost of control is the amount of resources and efforts required to implement and maintain the controls. By considering the residual risk and the cost of control, the organization can optimize the balance between the risk exposure and the control investment, and choose the most effective and efficient controls.
Risk appetite and control efficiency, inherent risk and control effectiveness, and risk tolerance and control complexity are other possible factors, but they are not as important as residual risk and cost of control. References = ISACA Certified in Risk and Information Systems Control (CRISC) Certification Exam Question and Answers, question 8; CRISC Review Manual, 6th Edition, page 97.