For a pull synchronization of a website using Web Deployment Agent Service, what tool should be used?

The correct choice is msdeploy, which is the tool specifically designed for synchronizing web applications and content between different environments, making it ideal for pull synchronization scenarios.

Web Deployment Agent Service (also known as WebDeploy) allows for automated deployment of web applications and can be utilized for both push and pull synchronization of websites. When using the pull synchronization method, msdeploy serves as the command-line utility that interacts with the Web Deployment Agent Service, enabling the transfer and synchronization of web content, settings, and databases directly from one server to another.

The other tools listed, such as the Web Platform Installer, are primarily used for managing the installation of web applications and components rather than for deployment or synchronization tasks. Windows PowerShell can be used for scripting and automating various administrative tasks but is not solely focused on web deployment. Azure CLI is useful for managing Azure resources but does not directly facilitate the synchronization of web applications outside of the Azure ecosystem in the same way as msdeploy does. Therefore, msdeploy is the most appropriate tool for performing pull synchronization with the Web Deployment Agent Service.