Category Archives: Uncategorized

14. VPC Flow Logs Troubleshooting for NACL and SG Just a quick lecture on how you could troubleshoot security group and knackle issues using flow logs. So let’s look at an incoming request. So this is remember the flow of an incoming request. And so it turns out that if you get right away an […]

12. [SAA] VPC Endpoints Our diagram is getting fuller and fuller by the day. So now let’s talk about how do we talk to AWS services. So, as we know, DynamoDB Cloud Watch S Three, these are all within the AWS cloud. Although if we want to access those right now from a private EC […]

10. [SAA] NACL & Security Groups Okay, in this lecture let’s talk about network sels and security group. So it is super important for you to understand the distinction because it can come up very often in the exam to understand what’s the difference between the network sels and security group. Now, for shortness purposes, […]

8. [SAA] NAT Gateways Talk about routing policies for Route 53. So a routing policy is helping Route 52 respond to DNS queries and we shouldn’t be confused about the word routing, okay? This is not like when you have a load balancer and the actual balancer will route traffic to the back end. Easy […]

6. [SAA] Internet Gateways & Route Tables Okay, so let’s have a look at TTLs. So a record TTL is a time to live. And let’s take this example where a client is accessing our DNS, route 53 and a web server. So we do a DNS request for My apps example and we get […]

4. [SAA] VPC Overview and Hands On Now let’s go ahead and create our own VPC. So VPC stands for Virtual Private Cloud. And you can have multiple VPC in a region up to five of the maximum. But that’s a soft limit. So you can place an eight of a support ticket and then […]

1. Section Introduction For networking. Also, we need to know in and out how to create, operate and manage a VPC. Troubleshooting is also very important. So we’ll look at Amazon VPC and AWS Direct Connect in this section. Now you may be asking me, oh, I already know how to do VPC and I […]

1. Other Services Overview Hey, welcome to this section on other services. So this is just to tell you that these are going to be random services that may appear at the exam, maybe on one question. Sometimes a little bit of information you need to know on these services is really, really tricky. But […]

13. Redshift concurrency scaling Now let’s talk about redshift concurrency scaling. So concurrency scaling is a feature of Redshift that allows you to automatically scale your cluster capacity to support the increase in read workload. So if your redshift cluster detects an increase in concurrent read request, then it’s going to automatically scale up your […]

1. Comparison of AWS Databases All right, in this lecture, let’s compare different AWS database solutions. So this will help you to choose the right database for the right job. So here’s the comparison of some of the AWS databases. All right, so we have a mix of relational databases, data warehouses, no SQL databases, […]