Let's take a look at the Swift exam objectives. Remember that the Certified OpenStack Administrator exam expects you to understand how to use OpenStack from the perspective of an administrator, not an infrastructure or DevOps engineer. You do not need to be overly concerned with the backend Swift configuration. This is a complex topic that you can learn more about in the book OpenStack Object Storage (Swift) Essentials by Packt Publishing.
The following figure breaks down various Swift-related objectives you should be responsible for knowing on the COA exam. As you can see, only some of these tasks can be completed on both the Horizon dashboard and CLI. When it comes to ACLs and object expiration, you will need to master the CLI commands shown in this chapter.