This is because the auditor's primary objective is to evaluate the adequacy and performance of the business continuity plan (BCP) in ensuring the continuity and resilience of the organization's critical functions and processesduring a disruption. The auditor should review the actual results and outcomes of the business response, such as the recovery time, recovery point, service level, customer satisfaction, and incident management, and compare them with the predefined objectives and criteria of the BCP. The auditor should also identify and analyze any gaps, issues, or lessons learned from the business response, and provide recommendations for improvement12.
Answer A. Confirm the BCP has been recently updated. is not the best answer, because it is not directly related to the auditor's course of action. Confirming the BCP has been recently updated is a part of the audit planning and scoping process, not the audit execution or reporting process. The auditor should confirm the BCP has been recently updated before conducting the audit, not after revealing that a simulation test has not been performed. Moreover, confirming the BCP has been recently updated does not provide sufficient evidence of the effectiveness of the business response12.
Answer C. Raise an audit issue for the lack of simulated testing. is not the best answer, because it is not relevant to the auditor's course of action. Raising an audit issue for the lack of simulated testing is a part of the audit reporting and follow-up process, not the audit execution or evaluation process. The auditor should raise an audit issue for the lack of simulated testing after reviewing the effectiveness of the business response, not before or instead of doing so. Furthermore, raising an audit issue for the lack of simulated testing does not address the root cause or impact of the problem, nor does it provide any constructive feedback or guidance for improvement12.
Answer D. Interview staff members to obtain commentary on the BCP's effectiveness. is not the best answer, because it is not sufficient to guide the auditor's course of action. Interviewing staff members to obtain commentary on the BCP's effectiveness is a part of the audit evidence collection and analysis process, not the audit evaluation or conclusion process. The auditor should interview staff members to obtain commentary on the BCP's effectiveness as one of the sources of information, not as the only or main source of information. Additionally, interviewing staff members to obtain commentary on the BCP's effectiveness may be subjective, biased, or incomplete, and may not reflect the actual performance or outcomes of the business response12.
References:
Business Continuity Management Audit/Assurance Program
Business Continuity Plan Testing: Types and Best Practices

IT governance is a framework that defines the roles, responsibilities, and processes for aligning IT strategy with business strategy. The board of directors of an organization is ultimately accountable for IT governance and has the authority to approve the IT strategy. The board of directors does not need to address technical IT issues, be informed of all IT initiatives, or have an IT strategy committee, as these tasks can be delegated to other stakeholders or committees within the organization.

The auditor implemented a specific control during the development of the system. This would impair the auditor's independence, as it would create a self-review threat, which is a situation where an auditor has to evaluate or review the results of his or her own work or judgment1. A self-review threat may compromise the auditor's objectivity and impartiality, as the auditor may be biased or influenced by his or her own involvement or interest in the system1. The auditor may also face a conflict of interest or a loss of credibility if he or she has to report on any issues or deficiencies related to the control he or she implemented.

Disabling operational logging compromises critical functions such as security monitoring, troubleshooting, and compliance reporting. Logs are essential for tracking system activities, identifying anomalies, and conducting forensic investigations in case of incidents. Enhancing processing speed and saving storage should not come at the cost of reducing logging, as this increases security risks and weakens the organization's ability to detect and respond to threats.
* Adopting a Peer-Inspired Service Delivery Model (Option B):This might pose risks if not customized for the organization's context, but it is not as critical as the loss of operational logging.
* Delegating Business Decisions to the CRO (Option C):While unconventional, this does not inherently introduce risks to IT service delivery unless operational control issues arise.
* Eliminating Reports and KPIs (Option D):This could hinder performance tracking but does not compromise operational security as severely as disabling logging.
Operational logging is foundational to maintaining security, reliability, and accountability in IT environments.
Reference:ISACA CISA Review Manual, Job Practice Area 3: Information Systems Operations and Business Resilience.

Antivirus software has been implemented on the guest operating system only is the observation that an IS auditor would consider the greatest risk when conducting an audit of a virtual server farm for potential software vulnerabilities. A virtual server farm is a collection of servers that run multiple virtual machines (VMs) on a single physical host using a software layer called a hypervisor. A guest operating system is the operating system installed on each VM. Antivirus software is a software program that detects and removes malicious software from a computer system. If antivirus software has been implemented on the guest operating system only, it means that the hypervisor and the host operating system are not protected from malware attacks, which could compromise the security and availability of all VMs running on the same host.
Therefore, antivirus software should be implemented on both the guest and host operating systems as well as on the hypervisor. References: CISA Review Manual, 27th Edition, page 378