The grading feature is not live for this activity as of current but we made the actives available in an ungraded fashion so people could have access to them as quickly as possible!
If the ansible commands you ran in the final step of the activity returned successfully then you completed the activity correctly!
You are welcome to view the solution video at your pleasure however you are not required to re-watch it if you do not feel like you need to. You may find it helpful to review the solution video before you start and once again after you have completed the activity. Some people even like to watch the solution step by step as they work through the activity. You are free to take the approach that helps you best understand the content.
Enjoy the course!