Monthly Archives: December 2022

14. Elastic Load Balancer – Monitoring, Troubleshooting, Logging and Tracing Okay, so let’s have a look at the types of errors that can be generated by your bouncer. So a successful request will return a 200, which is fairly standard, but if the client made an error—for example, if your web browser made an error—you […]

8. [SAA/DVA] Network Load Balancer (NLB) – Hands On Okay, so let’s practise using our network load balancer. So I’m going to create a new network load balancer, and as you can see, it’s TCP, TLS, and UDP sort of traffic. So let’s create it, and we need to give it a game. So in […]

3. [SAA/DVA] Classic Load Balancer (CLB) First, start with our classic load balancer. And these may not be as prominent in the exam, but they may still be mentioned, and they’re still very valid load balancers. So they support TCPor traffic as well as HTTP and HTTPS. TCP is referred to as layer four, HTTP […]

1. Introduction to SNS SNS is Amazon’s simple notification service. It’s a web service that makes it easy to set up, operate, and send notifications from the cloud. It provides developers with a highly scalable, flexible, and cost-effective capability to publish messages from an application and immediately deliver them to subscribers or other applications. Amazon […]

1. What is SQS? Let’s talk about what SQS is. This entire lecture is theoretical. We’re going to look at different examples, but it can be quite wordy. So just see if you can follow me. So, Amazon SQS is a web service that gives you access to a message queue that can be used […]

4. Scan vs Query API Calls Let’s start with a query. What is the query? Well, basically, a query operation finds items in the database using only the primary key attribute values. So you must provide a partition attribute name and a distinct value to search for. So, to give you an example, you might […]

1. Introduction to DynamoDB So what is DynamoDB? Well, it’s a fast and flexible NoSQL database service for all applications that need consistent single-digit millisecond latency at any scale. It’s a fully managed database, and it supports both document and key-value data models. Its flexible data model and reliable performance make it a great fit […]

1. Database Essentials So let’s start with: what is a relational database? Relational databases have been around for a long time because they are what most of us are used to. So if you think of a traditional spreadsheet, an Excel spreadsheet, for example, the database itself is going to be the file name of […]

12. Cloud Front Overview Now we won’t have any labs on the storage gateway. It’s important that you understand this just on a theoretical level. So what is it? Well, AWS Storage Gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration between an organization’s on-premises […]

9. S3 Version Control Okay, so here I am in the AWS console. Now, before we get started, I just want you to go over to Services, go down to Storage, and click on Glacier. Glacier is obviously used for data archiving. It’s not available in every region, however. So if you click on Northern […]