Isaca Updated CISA Exam Questions and Answers by zadie

This should result in a finding because it violates the best practice of setting rules for groups rather than users. According to one of the web search results1, using group permissions instead of individual permissions can simplify the management and maintenance of ACLs, reduce the risk of human errors, and ensure consistency and compliance. Individual permissions can create conflicts, confusion, and security gaps in the ACLs. Therefore, the IS auditor should report this as a finding and recommend using group permissions instead.

 Root cause is the most important thing for an IS auditor to determine and understand to develop meaningful recommendations for findings. A root cause is the underlying factor or condition that leads to a problem or issue. A finding is a statement that describes a problem or issue identified during an audit. A recommendation is a suggestion or advice that aims to address or resolve a finding. To develop meaningful recommendations for findings, an IS auditor should determine and understand the root cause of each finding, as this can help to identify the most effective and appropriate actions to prevent or correct the problem or issue. The other options are not as important as determining and understanding the root cause, as they do not directly address or resolve the finding. References: CISA Review Manual, 27th Edition, page 434

 The most significant concern for an IS auditor when reviewing an industrial control system (ICS) that uses older unsupported technology in the scope of an upcoming audit is that there is a greater risk of system exploitation. System exploitation is an attack that occurs when an unauthorized entity or individual takes advantage of a vulnerability or weakness in a system to compromise its security or functionality. System exploitation can cause harm or damage to the system or its users, such as data loss, corruption, theft, manipulation, denial of service (DoS), etc. An ICS that uses older unsupported technology poses a high risk of system exploitation, as older technology may have known or unknown vulnerabilities or defects that have not been patched or fixed by the vendor or manufacturer, and unsupported technology may not receive any updates or support from the vendor or manufacturer in case of issues or incidents. Attack vectors are evolving for industrial control systems is a possible concern for an IS auditor when reviewing an ICS that uses older unsupported technology in the scope of an upcoming audit, but it is not the most significant one. Attack vectors are methods or pathways that attackers use to gain access to or attack a system. Attack vectors are evolving for industrial control systems, as attackers are developing new techniques or tools to target ICSs that are increasingly connected and complex. However, this concern may not be specific to older unsupported technology, as it may affect any ICS regardless of its technology level. Disaster recovery plans (DRPs) are not in place is a possible concern for an IS auditor when reviewing an ICS that uses older unsupported technology in the scope of an upcoming audit, but it is not the most significant one. DRPs are documents that outline the technical and operational steps for restoring the IT systems and infrastructure that support critical functions or processes in the event of a disruption or disaster. DRPs are not in place, as they may affect the availability and continuity of the ICS and its functions or processes in case of a failure or incident. However, this concern may not be related to older unsupported technology, as it may apply to any ICS regardless of its technology level. Technical specifications are not documented is a possible concern for an IS auditor when reviewing an ICS that uses older unsupported technology in the scope of an upcoming audit, but it is not the most significant one. Technical specifications are documents that describe the technical characteristics or requirements of a system or component, such as functionality, performance, design, etc. Technical specifications are not documented, as they may affect the understanding, maintenance, and improvement of the ICS and its components. However, this concern may not be associated with older unsupported technology, as it may affect any ICS regardless of its technology level. 

The most information about the transaction audit trail in an online application can be obtained by reviewing the system/process flowchart. A system/process flowchart is a diagram that illustrates the sequence of steps, activities, or events that occur within or affect a system or process. A system/process flowchart can provide the most information about the transaction audit trail in an online application, by showing how transactions are initiated, processed, recorded, and completed, and identifying the inputs, outputs, controls, and dependencies involved in each transaction. File layouts are specifications that define how data are structured or organized on a file or database. File layouts can provide some information about the transaction audit trail in an online application, by showing what data elements are stored or retrieved for each transaction, but they do not provide information about how transactions are executed or tracked. Data architecture is a framework that defines how data are collected, stored, managed, and used within an organization or system. Data architecture can provide some information about the transaction audit trail in an online application, by showing what data sources, models, standards, and policies are used for each transaction, but they do not provide information about how transactions are performed or monitored. Source code documentation is a description or explanation of the source code of a software program or application. Source code documentation can provide some information about the transaction audit trail in an online application, by showing what logic, algorithms, or functions are used for each transaction, but they do not provide information about how transactions are handled or audited.