om a service consumer. Preconditions can include whether the service consumer is properly authenticated, is on the service’s whitelist, passes ACL checks, and more.</p></li><li><p><strong>Quota Management</strong>. Enables services to allocate and free quota on a number of dimensions. Quotas are used as a relatively simple resource management tool to provide some fairness between service consumers when contending for limited resources. Rate limits are examples of quotas.</p></li><li><p><strong>Telemetry R