I hope you found this course useful and that you learned something new about Google Cloud Pub/Sub.  Let’s do a quick review of everything that was covered:

1. First, I showed how to set up a subscription filter to further refine the messages you receive from a given topic.
2. Second, I showed you how to enforce ordering for certain messages by adding ordering keys.  
3. Third, I demonstrated how to keep track of any undeliverable messages using Dead Letter Topics.
4. Fourth, you learned how to create and use a message schema to enforce a specific format for a topic.
5. Fifth, I gave you a few options for dealing with duplicate messages.
6. Sixth, you learned about how to replay previously acknowledged messages, as well as how to purge unacknowledged ones using the seek feature.
7. And last, I showed you how to monitor your topics for common problems.

Well, that’s all I have for you today.  Remember to give this course a rating, and if you have any questions or comments, please let us know.  Thanks for watching, and make sure to check out our many other courses on Cloud Academy!