CISA Exam Dumps - Certified Information Systems Auditor

 Changing the default configurations of a database system is a critical control for securing it from unauthorized access or exploitation. Default configurations often include weak passwords, unnecessary services, open ports, or known vulnerabilities that can be easily exploited by attackers. The other options are not as important as changing the default configurations, as they do not address the root cause of the security risks. Normalizing tables in the database is a design technique for improving data quality and performance, but it does not affect security. Changing the service port used by the database server is a form of security by obscurity, which can be easily bypassed by port scanning tools. Using the default administration account after changing the account password is still risky, as the account name may be known or guessed by attackers. References: CISA Review Manual (Digital Version), Chapter 5, Section 5.2.4

The best recommendation for a small IT web development company where developers must have write access to production is to remove production access from the developers. Production access is the ability to modify or update the live systems or applications that are used by customers or end users. Production access should be restricted to authorized and qualified personnel only, as any changes or errors in production can affect the functionality, performance, or security of the systems or applications. Developers should not have write access to production, as they may introduce bugs, vulnerabilities, or inconsistencies in the code that can compromise the quality or reliability of the systems or applications. The other options are not as effective as removing production access from the developers, as they do not address the root cause of the problem or provide the same benefits. Hiring another person to perform migration to production is a costly solution that can help segregate the roles and responsibilities of developers and migrators, but it does not remove production access from the developers. Implementing continuous monitoring controls is a good practice that can help detect and correct any issues or anomalies in production, but it does not remove production access from the developers. Performing a user access review for the development team is a detective control that can help verify and validate the access rights and privileges of developers, but it does not remove production access from the developers. References: CISA Review Manual (Digital Version), Chapter 3, Section 3.2

 The IS auditor’s best course of action in this situation is to determine whether the alternative controls sufficiently mitigate the risk. Alternative controls are different from those originally discussed and agreed with the audit function, but they may still achieve the same objective of addressing the audit issue or reducing the risk to an acceptable level. The IS auditor should evaluate whether the alternative controls are appropriate, effective, and sustainable before closing the audit finding or escalating it to senior management. The other options are not appropriate for resolving this situation, as they do not consider whether the alternative controls are adequate or reasonable. Re-prioritizing the original issue as high risk and escalating to senior management is a drastic step that may undermine the relationship between the auditor and management, and it should be done only after exhausting other means of resolving the issue. Scheduling a follow-up audit in the next audit cycle is unnecessary, as follow-up activities should be performed as soon as possible after management has implemented corrective actions. Postponing follow-up activities and escalating the alternative controls to senior audit management is premature, as follow-up activities should be completed before reporting any findings or recommendations to senior audit management. References: CISA Review Manual (Digital Version), Chapter 2, Section 2.4

 An organization’s audit charter primarily describes the auditors’ authority to conduct audits. The audit charter is a formal document that defines the purpose, scope, responsibilities, and reporting relationships of the internal audit function. It also establishes the auditors’ right of access to information, records, personnel, and physical properties relevant to their work. The audit charter provides the basis for the auditors’ independence and accountability to the governing body and senior management. 

The most important thing for the auditor to confirm when sourcing the population data for testing accounts payable controls by performing data analytics is that the data is taken directly from the system. Taking the data directly from the system can help ensure that the data is authentic, complete, and accurate, and that it has not been manipulated or modified by any intermediary sources or processes. The other options are not as important as taking the data directly from the system, as they do not affect the validity or reliability of the data. There is no privacy information in the data is a privacy concern that can help protect the confidentiality and integrity of personal or sensitive data, but it does not affect the accuracy or completeness of the data. The data can be obtained in a timely manner is a logistical concern that can help facilitate the efficiency and effectiveness of the data analytics process, but it does not affect the authenticity or accuracy of the data. The data analysis tools have been recently updated is a technical concern that can help enhance the functionality and performance of the data analytics tools, but it does not affect the validity or reliability of the data. References: CISA Review Manual (Digital Version), Chapter 3, Section 3.2

The most effective way to maintain network integrity when using mobile devices is to implement network access control. Network access control is a security control that regulates and restricts access to network resources based on predefined policies and criteria, such as device type, identity, location, or security posture. Network access control can help maintain network integrity when using mobile devices by preventing unauthorized or compromised devices from accessing or affecting network systems or data. The other options are not as effective as network access control in maintaining network integrity when using mobile devices, as they do not address all aspects of network access or security. Implementing outbound firewall rules is a security control that filters and blocks network traffic based on source, destination, protocol, or port, but it does not regulate or restrict network access based on device characteristics or conditions. Performing network reviews is a monitoring activity that evaluates and reports on the performance, availability, or security of network resources, but it does not regulate or restrict network access based on device characteristics or conditions. Reviewing access control lists is a verification activity that validates and confirms the access rights and privileges of network users or devices, but it does not regulate or restrict network access based on device characteristics or conditions. References: CISA Review Manual (Digital Version), Chapter 5, Section 5.2.2

 The best recommendation to reduce the risk of data leakage from employee use of social networking sites for business purposes is to provide education and guidelines to employees on use of social networking sites. Education and guidelines can help employees understand the benefits and risks of using social media for business purposes, such as enhancing brand awareness, engaging with customers, or sharing industry insights. They can also inform employees about the dos and don’ts of social media etiquette, such as respecting privacy, protecting intellectual property, avoiding conflicts of interest, or complying with legal obligations. Education and guidelines can also raise awareness of potential data leakage scenarios, such as phishing attacks, malicious links, fake profiles, or oversharing sensitive information, and provide tips on how to prevent or respond to them. 

 The decision to accept an IT control risk related to data quality should be the responsibility of the business owner. The business owner is the person who has the authority and accountability for the business process that relies on the data quality. The business owner should understand the impact of data quality issues on the business objectives, performance, and compliance. The business owner should also be involved in defining the data quality requirements, assessing the data quality risks, and implementing the data quality controls or mitigation strategies.