正解:D
An image factory is used in VM deployment to create standardized and secure virtual machine images. The primary role of the image factory is to automate the creation of these images, ensuring that all VMs deployed from the image are consistent in terms of configuration, security settings, and performance. By using an image factory, organizations can ensure that their VMs are secure (with the necessary security patches and settings), efficient (optimized for performance), and consistent (following the same configuration).
This process minimizes the risk of configuration drift and reduces manual intervention in VM deployment, leading to more efficient and secure operations.