Stakeholder satisfaction is a key indicator of the effectiveness of a QMS, as it reflects the extent to which the QMS meets the expectations and prioritiesof the customers and other interested parties. A high percentage of stakeholder satisfaction implies that the QMS is delivering consistent and reliable products or services that meet the quality standards and requirements.
References
ISACA CISA Review Manual, 27th Edition, page 253
The Four Main Components of A Quality Management System
The Road to Developing an Effective Quality Management System (QMS)

A self-checking digit is the most effective accuracy control for entry of a valid numeric part number. This method involves adding an extra digit at the end of every number which is calculated from the other digits. This digit is then used to check the accuracy of the entered number1. While hash totals, online review of description, and comparison to historical order pattern can be used as accuracy controls, they are not as effective as a self-checking digit.

A mobile device awareness program would best enable an organization to address the security risks associated with a recently implemented bring your own device (BYOD) strategy. A mobile device awareness program is a set of activities that aim to educate and inform the employees about the benefits, challenges, and best practices of using their personal mobile devices for work purposes. A mobile device awareness program can help the organization to:
* Communicate the organization's policies and expectations regarding BYOD, such as which devices are allowed, what data can be accessed or stored, and what security measures are required.
* Raise the employees' awareness of the potential threats and vulnerabilities that affect their mobile devices, such as malware, phishing, data leakage, or device loss.
* Provide the employees with guidance and tips on how to protect their mobile devices and the organization's data, such as using strong passwords, encryption, antivirus software, remote wipe, or VPN.
* Encourage the employees to report any incidents or issues related to their mobile devices, such as suspicious messages, unauthorized access, or device damage.
A mobile device awareness program can help the organization to reduce the security risks associated with BYOD by enhancing the employees' knowledge, skills, and behavior in using their mobile devices securely and responsibly. Amobile device awareness program can also help the organization to comply with relevant regulations and standards that governdata privacy and security in the cloud1.
The other options are not as effective as a mobile device awareness program in enabling an organization to address the security risks associated with BYOD. Option A, mobile device tracking program, is a tool that allows the organization to monitor and locate the employees' mobile devices in case of loss or theft. However, this tool may not prevent or detect other types of security risks, such as malware infection or data breach.
Option B, mobile device upgrade program, is a process that ensures that the employees' mobile devices are running the latest versions of operating systems and applications. However, this process may not address other aspects of security, such as user behavior or data protection. Option C, mobile device testing program, is a method that verifies the functionality and compatibility of the employees' mobile devices with the organization's systems and networks. However, this method may not cover all the scenarios or factors that may affect the security of the mobile devices or the organization's data2.
References:
* Mobile Device Security Awareness Topics3
* Security Awareness Top Ten Topics - #8 Mobile Devices

This is because the business processes are the core activities and functions that enable the organization to achieve its objectives and create value for its stakeholders. The business processes are also the sources and drivers of various risks that may affect the organization's performance, compliance, and reputation. Therefore, the IS auditor should focus on understanding, assessing, and prioritizing the business processes that are most critical, complex, or vulnerable to the organization's success, and align the audit objectives, scope, and resources accordingly12.
Critical business applications (A) are not the most important area of focus for an IS auditor when developing a risk-based audit strategy, but rather a specific aspect of the business processes that may require attention.
Critical business applications are the software systems that support the execution and automation of the business processes, such as enterprise resource planning (ERP), customer relationship management (CRM), or accounting systems. Critical business applications may pose significant risks to the organization if they are not reliable, secure, or efficient. Therefore, the IS auditor should consider the criticality, functionality, and dependency of the business applications when planning the audit, but not as the primary focus12.
Existing IT controls are not the most important area of focus for an IS auditor when developing a risk- based audit strategy, but rather an outcome or output of the risk assessment process. Existing IT controls are the policies, procedures, practices, and technologies that are implemented to manage and mitigate the IT- related risks that may affect the organization's business processes and objectives. Existing IT controls may vary in their design, effectiveness, and maturity. Therefore, the IS auditor should evaluate and testthe existing IT controls as part of the audit execution and reporting process, but not as the main focus12.
Recent audit results (D) are not the most important area of focus for an IS auditor when developing a risk- based audit strategy, but rather an input or source of information for the risk assessment process. Recent audit results are the findings, recommendations, and opinions of previous audits that may provide insights or feedback on the organization's business processes, risks, and controls. Recent audit results may also indicate any changes or trends in the organization's risk profile or environment. Therefore, the IS auditor should review and consider the recent audit results as part of the audit planning and scoping process, but not as the main focus12.

The most critical factor for the effective implementation of IT governance is a supportive corporate culture. A supportive corporate culture is one that fosters collaboration, communication and commitment among all stakeholders involved in IT governance processes. A supportive corporate culture also promotes a shared vision, values and goals for IT governance across the organization. Strong risk management practices, internal auditor commitment or documented policies are important elements for IT governance implementation, but they are not sufficient without a supportive corporate culture. References: ISACA, CISA Review Manual,
27th Edition, 2018, page 41