The primary purpose of vulnerability assessments is to detect weaknesses that could lead to system compromise. A vulnerability assessment is a systematic review of security weaknesses in an information system. It evaluates if the system is susceptible to any known vulnerabilities, assigns severity levels to those vulnerabilities, and recommends remediation or mitigation, if and whenever needed1. By identifying and prioritizing the vulnerabilities, a vulnerability assessment helps to prevent or reduce the risk of cyberattacks that could exploit the vulnerabilities and compromise the system. The other options are not the primary purpose, but they may be secondary or tertiary outcomes or benefits of a vulnerability assessment. Providing clear evidence that the system is sufficiently secure is a result of a successful vulnerability assessment and remediation process, but it is not the main objective. Determining the impact of potential threats is a part of the risk assessment process, which complements the vulnerability assessment process, but it is not the same as detecting the vulnerabilities. Testing intrusion detection systems (IDS) and response procedures is a part of the penetration testing process, which simulates a real-world attack on the system to evaluate its security posture, but it is not the same as scanning the system for vulnerabilities. References = What is Vulnerability Assessment | VA Tools and Best Practices - Imperva

Senior management involvement is a critical driver for the success of any risk management program. Without their engagement, there is a lack of strategic oversight, resource allocation, and prioritization of risk management initiatives, directly impacting the organization's ability to meet risk objectives. This is emphasized in the Governance Principles of CRISC.

The organization's information security manager is responsible for IT security controls that are outsourced to an external service provider. The information security manager is accountable for ensuring that the security policies and standards of the organization are followed by the service provider, and that the security objectives and requirements are met. The information security manager is also responsible for monitoring and evaluating the security performance and compliance of the service provider, and for managing the security risks and incidents that may arise from the outsourcing arrangement. The organization's risk function, the service provider's IT management, and the service provider's information security manager are not responsible for IT security controls that are outsourced, as they have different roles and responsibilities in the outsourcing process. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter
5, Section 5.2.1.2, page 2461
1: ISACA Certified in Risk and Information Systems Control (CRISC) Exam Guide, Answer to Question
651.

The best way to assess the effectiveness of an access management process is to reconcile a list of accounts belonging to terminated employees. This will ensure that the access rights of the employees who have left the organization are revoked in a timely and accurate manner, and that there are no orphaned or unauthorized accounts that could pose a security risk. Comparing the actual process with the documented process, reviewing access logs for user activity, and reviewing for compliance with acceptable use policy are also useful methods, but they are not as direct and conclusive as reconciling a list of accounts belonging to terminated employees. References = CRISC Review Manual, 6th Edition, ISACA, 2015, page 217.

The integrity of data should be the greatest concern for a risk practitioner upon learning of failures in a data migration activity, because it affects the accuracy, completeness, and consistency of the data that are transferred from one system or format to another. Data integrity is a property of data that ensures that the data are valid, reliable, and trustworthy, and that they have not been altered or corrupted by unauthorized or accidental means. Data migration is a process of moving or copying data from one system or format to another, usually as part of a system upgrade, consolidation, or transformation. Data migration can pose risks to the integrity of data, such as data loss, duplication, inconsistency, or corruption, due to factors such as incompatible formats, human errors, technical glitches, or malicious attacks. Therefore, the integrity of data should be the greatest concern, as it impacts the quality and usability of the data, and the performance and functionality of the system. The availability of test data, the cost overruns, and the system performance are all possible concerns for a risk practitioner, but they are not the greatest concern, as they do not directly affect the integrity of data. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.2, page 158