In this chapter, you learned about replica sets in general: what they are, how they work, and what their benefits are. You were also given guidelines to establish a solid business rationale pursuant to implement a replica set. After that, you were shown how a DevOp might model a replica set using Docker and Docker Compose. Next, you learned about how to configure and deploy a replica set, with detailed coverage of the various replication configuration settings for each replica set member, as well as the overall settings.
In the next chapter, you will learn how to monitor and manage replica sets, as well as addressing program code that interacts with a replica set.
