Hello, and welcome to this course. Within it I shall uncover the reasons behind RDS Multi-AZ, and when to use and implement this feature within your own environment. In addition to this, I will also discuss what Read Replicas are, and what they're used for, and how these differ from a Multi-AZ deployment. Understanding the differences between these two features is key when trying to design a resilient and performance-optimized RDS database. Before we start, I'd like to introduce myself. My name is Stuart Scott. 

I'm one of the trainers here at Cloud Academy specializing in AWS Amazon Web Services. Feel free to connect with me with any questions using the details shown on the screen. Alternatively, you can always get in touch with us here at Cloud Academy by sending an email to support@cloudacademy.com, where one of our cloud experts will reply to your question. This course has been designed for those who are responsible for maintaining and managing RDS databases within AWS. It would also be advantageous to solution architects and those wishing to take the AWS Certified Developer Associate certification. The lectures within this course are as follows: RDS Multi-AZ: This lecture will explain what Multi-AZ is, and its benefits, and how it works between the different database engine types. 

Next we have Read Replicas, and this lecture looks at the role and importance of Read Replicas within your RDS deployments. And then, finally, we have a summary lecture, and this will provide a high-level overview of the key points throughout the previous two lectures. The objectives of this course are as follows: To understand the differences between Multi-AZ instances and Read Replicas. To understand the different techniques and methods used to implement Multi-AZ across different database engine types. 

And to understand the limitations and subtle differences between Read Replicas across different database engine types. To gain the most from this course, you should already have an understanding of Amazon RDS, includåing how to set up an RDS database within a single availability zone. You should also be familiar with AWS Global Infrastructure regarding regions and availability zones. 

For more information on this topic, please take a look at the following blog post. Feedback on our courses here at Cloud Academy are valuable to both us as trainers and any students that take the same course in the future. If you have any feedback, positive or negative, it would be greatly appreciated if you could contact support@cloudacademy.com. That brings me to the end of this lecture. Comin' up next, I will start by explaining what RDS Multi-AZ is.