CISA-KR 문제 101
A black box penetration test is a type of security assessment that simulates an attack on a system or network without any prior knowledge of its configuration or architecture. The main objective of this test is to identify vulnerabilities and weaknesses that can be exploited by external or internal threat actors. To plan a black box penetration test, it is most important to ensure that the environment and penetration test scope have been determined. This means that the tester and the client organization have agreed on the boundaries, objectives, methods, and deliverables of the test, as well as the legal and ethical aspects of the engagement. Without a clear definition of the environment and scope, the test may not be effective, efficient, or compliant with relevant standards and regulations. Additionally, the tester may cause unintended damage or disruption to the client's systems or networks, or violate their privacy or security policies.
References:
What are black box, grey box, and white box penetration testing?
What Is Black-Box Penetration Testing and Why Should You Choose It?
CISA-KR 문제 102
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
CISA-KR 문제 103
The best reason to implement a data retention policy is to limit the liability associated with storing and protecting information. A data retention policy is a document that defines how long data should be kept by an organization and how they should be disposed of when they are no longer needed. A data retention policy should comply with the applicable laws and regulations that govern the data retention requirements and obligations of organizations, such as tax laws, privacy laws, or industry standards4. Implementing a data retention policy can help to limit the liability associated with storing and protecting information by reducing the amount of data that need to be stored and secured, minimizing the risk of data breaches or leaks, ensuring compliance with legal or contractual obligations, and avoiding potential fines or penalties for non-compliance5. The other options are less relevant or incorrect because:
B: Documenting business objectives for processing data within the organization is not a reason to implement a data retention policy, as it is more related to data governance than data retention. Data governance refers to the policies, procedures, and controls that define how data are collected, used, managed, and shared within an organization. Data governance helps to ensure that data are aligned with business objectives and support decision making6.
C: Assigning responsibility and ownership for data protection outside IT is not a reason to implement a data retention policy, as it is more related to data accountability than data retention. Data accountability refers to the identification and assignment of roles and responsibilities for data protection among different stakeholders within an organization. Data accountability helps to ensure that data are handled appropriately and securely by authorized parties7.
D: Establishing a recovery point objective (RPO) for disaster recovery procedures is not a reason to implement a data retention policy, as it is more related to data backup than data retention. Data backup refers to the process of creating copies of data that can be restored in case of data loss or corruption. Data backup helps to ensure that data are available and recoverable in case of disaster8. RPO is a measure of the maximum amount of data that can be lost or acceptable in case of disaster9.
References: Data Retention Policy - ISACA, Data Retention - ISACA, Data Governance - ISACA, Data Accountability - ISACA, Data Backup - ISACA, Recovery Point Objective - ISACA
CISA-KR 문제 104
A database administrator (DBA) is responsible for maintaining the integrity, security and performance of the database systems. A DBA who is also responsible for developing and executing changes into the production environment may have a conflict of interest and pose a risk to the data quality and availability. Therefore, the IS auditor should first identify whether any compensating controls exist to mitigate this risk, such as independent reviews, approvals, audits or monitoring of the changes. Determining whether another DBA could make the changes, reporting a potential segregation of duties violation and ensuring a change management process is followed prior to implementation are possible actions that the auditor could take after identifying the compensating controls or the lack thereof. References:
1: Database Administrator (DBA) Definition
2: Segregation of Duties | ISACA
3: [Compensating Control Definition]
CISA-KR 문제 105
The primary benefit of using one-time passwords is that an intercepted password cannot be reused, as it is valid only for a single login session or transaction. One-time passwords enhance the security of authentication by preventing replay attacks or password guessing. The other options are not the primary benefits of using one-time passwords. Security for applications can be automated with or without one-time passwords. Users may still have to memorize complex passwords or use a device or software to generate one-time passwords. Users can still be locked out of an account if they enter an incorrect or expired one-time password.
References: CISA Review Manual (Digital Version), Chapter 6, Section 6.1
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