Provision VMs dynamically from a dedicated configuration file following Google-recommended practices. Which method should you use?

Deployment Manager is the correct choice because it is Google Cloud's infrastructure as code (IaC) service, allowing you to define, deploy, and manage Google Cloud resources, including VMs, using declarative configuration files (YAML). This aligns perfectly with provisioning VMs dynamically from a dedicated configuration file following recommended practices. Cloud Composer is a managed Apache Airflow service for orchestrating workflows, not for provisioning infrastructure. Managed Instance Groups are used for deploying and managing groups of identical VMs, often with auto-scaling and auto-healing, but they are managed through templates, not directly from a dedicated configuration file in the same way Deployment Manager operates for broader infrastructure. Unmanaged Instance Groups are simply collections of individual VMs that you manage yourself, offering no dynamic provisioning capabilities from a configuration file.