You've just learned about all the Nova-related objectives on the exam. Nova has many more features, but understanding how to manage flavors, key pairs, instances, and virtual instance actions should put you in a good position going into the exam. Remember that all Nova-related exam objectives can be completed via the Horizon dashboard. If you want to use python-openstackclient, ensure you are familiar with any positional or optional arguments. If you forget them, rely on the openstack help command. Recall that key pairs are one of the OpenStack resources that are owned by users, not the project. When you delete a user, their public key is also deleted. Nova only stores a copy of the public key. If you lose your private key, you must generate a new key pair. By default, flavors are accessible to all users in all projects across all domains. In order to make a flavor...