We have finished this chapter by describing Data Guard physical standby database creation, configuration, and controlling. We used the RMAN duplicate from the active database method, which is the easiest and most efficient way of creating a physical standby database. This method doesn't require a backup staging disk area in either primary or standby servers because it performs a direct copy from primary files to standby. This chapter also covered pre and post steps of creating a standby database with RMAN duplicate. We learned starting, stopping, and monitoring Redo Apply and the synchronization method of physical standby databases, including real-time apply. In the next chapter, we'll learn about building a Data Guard logical standby database environment.