Final answer:
The 'Not allowed resource types' policy definition governs which types of cloud resources cannot be used within an organization, helping to enforce security, compliance, and cost management directives.
Step-by-step explanation:
The policy definition contained within Not allowed resource types typically refers to a set of constraints specified in an organization's cloud environment, on a platform such as Microsoft Azure or Amazon Web Services (AWS). These constraints are used to prevent certain types of resources from being created or managed because they may not comply with a company's compliance policies, security requirements, or cost management strategies. For example, a company might restrict the creation of high-cost virtual machines or block the use of certain regions to maintain data sovereignty.
Not allowed resource types can also be part of a governance framework ensuring the organization's cloud usage aligns with its strategic objectives. By enforcing these policies, companies can avoid unintended expenses, ensure standard configurations, and maintain a uniform security posture across their cloud deployments.