Which statement is true regarding the scope of an audit based on the cloud model used?

The statement regarding the scope of an audit based on the cloud model used is true because the cloud model significantly influences what aspects and layers of the environment will be included in the audit process. Different cloud models—such as public, private, and hybrid clouds—come with varying levels of control and responsibility for security and compliance.

In a public cloud, the service provider generally manages the underlying infrastructure and resources, which means that the audit must focus on the provider's policies and controls, as well as how customers utilize the provided services securely. In a private cloud, the organization has more control, necessitating a different scope that may include internal processes, policies, and security measures. Hybrid clouds mix elements of both, adding complexity that affects audit scope.

Each model requires auditors to adjust their focus according to the specific environment's operational and security frameworks, regulatory requirements, and risk management strategies. Therefore, understanding the cloud model is crucial for determining the scope and depth of the audit, making the statement true.