When the cloud platform creates a VM resource, it needs to call multiple components, such as Nova, Cinder, Glance, etc., and the authentication and authentication between the components depends on which of the following options?

When the cloud platform creates a VM resource, it needs to call multiple components, such as Nova, Cinder, Glance, etc., and the authentication and authentication between the components depends on which of the following options?
A . Freezer
B . Watcher
C . Keystone
D . Zun

View Answer

Answer: C