CISA-KR 문제 36
Segregation of duties is a fundamental concept in cybersecurity and information security. It refers to the practice of dividing critical tasks and responsibilities among different individuals or roles within an organization to reduce the risk of fraud, error, or unauthorized activities1. Segregation of duties is designed to prevent unilateral actions within an organization's workflow, which can result in damaging events that would exceed the organization's risk tolerance2.
There are different types of responses to risk associated with segregation of duties, depending on the level of risk and the cost-benefit analysis. Some of the common responses are:
Risk acceptance: This means acknowledging a risk and deciding to tolerate it without taking any corrective actions. This response is usually chosen when the risk is low or the cost of mitigation is too high3.
Risk mitigation: This means taking steps ahead of time to lessen the effects of a risk and make it less likely to happen. Some examples of mitigation strategies are making backup plans, setting up early warning systems, and staying away from high-risk areas or activities4.
Risk transference: This means shifting the negative impact of a risk and/or the responsibility for managing the risk response to a third party. Some examples of transference strategies are outsourcing, insurance, or contracts5.
Risk reduction: This means reducing the probability and/or severity of the risk below a threshold of acceptability. Some examples of reduction strategies are implementing controls, policies, or procedures to prevent or detect risks6.
Based on these definitions, the response to risk associated with segregation of duties that would incur the lowest initial cost is A. Risk acceptance. This is because risk acceptance does not require any additional resources or actions to address the risk. However, risk acceptance also implies that the organization is willing to bear the consequences of the risk if it occurs, which could be costly in the long run.
Therefore, the correct answer to your question is A. Risk acceptance.
CISA-KR 문제 37
The best way to assess the effectiveness of changes made to processes and tools related to an organization's BCP is to review the full test results of the BCP. Full test results can provide evidence of whether the changes have improved the BCP's objectives, such as recovery time objectives (RTOs), recovery point objectives (RPOs), and business impact analysis (BIA). The other options are not as effective as reviewing the full test results, as they do not demonstrate the actual performance of the BCP under simulated disaster scenarios.
Completed test plans are only documents that outline the scope, objectives, and procedures of the BCP testing, but they do not show the outcomes or issues encountered during the testing. Updated inventory of systems is a component of the BCP that identifies the critical systems and resources required for business continuity, but it does not measure the effectiveness of the BCP changes. Change management processes are controls that ensure that changes to the BCP are authorized, documented, and communicated, but they do not evaluate the impact or benefit of the changes. References: CISA Review Manual (Digital Version), Chapter 4, Section
4.2.3
CISA-KR 문제 38
Implementing solutions to correct defects is a responsibility of the development function, not the quality assurance (QA) function. The QA function should ensure that the development process follows the established standards and methodologies, and that the defects are identified and reported. The QA function should not be involved in fixing the defects, as this would compromise its independence and objectivity. The other options are valid responsibilities of the QA function, and they should not raise concern for an IS auditor. References:
CISA Review Manual (Digital Version) 1, page 300.
CISA-KR 문제 39
The most important determining factor when establishing appropriate timeframes for follow-up activities related to audit findings is the remediation dates included in management responses. The IS auditor should ensure that the follow-up activities are aligned with the agreed-upon action plans and deadlines that management has committed to in response to the audit findings. The follow-up activities should verify that management has implemented the corrective actions effectively and in a timely manner, and that the audit findings have been resolved or mitigated.
The other options are less important factors for establishing timeframes for follow-up activities:
Availability of IS audit resources. This is a practical factor that may affect the scheduling and execution of follow-up activities, but it should not override the priority and urgency of verifying management's corrective actions.
Peak activity periods for the business. This is a factor that may affect the availability and cooperation of auditees during follow-up activities, but it should not delay or postpone the verification of management's corrective actions beyond reasonable limits.
Complexity of business processes identified in the audit. This is a factor that may affect the scope and depth of follow-up activities, but it should not affect the timeframe for verifying management's corrective actions.
CISA-KR 문제 40
The IS auditor's independence would be most likely impaired if they implemented a specific control during the development of an application system. This is because the IS auditor would be auditing their own work, which creates a self-review threat that could compromise their objectivity and impartiality. The IS auditor should avoid participating in any operational or management activities that could affect their ability to perform an unbiased audit. The other options do not pose a significant threat to the IS auditor's independence, as long as they follow the ethical standards and guidelines of the profession.
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