AWS Services SQS Distributed queue system. Pull based. Used to decouple an application. Gives access to a message queue. Stores messages while waiting for a computer to process them. Message in the SQS queue will continue to exist even after the EC2 instance has processed it until you delete that message. You have to ensure that you delete the Read more about AWS Certified Solutions Architect Exam Notes – Services[…]
Lambda – Serverless Event-driven computing service. There is no server running. An event comes and the code gets executed. Serverless scales instantly (scales out, not up). If 1 million users hit the same request, 1 million lambdas will run the code. No Servers. No antivirus. No maintenance. No admins. No patching. Supported languages Node.js Java C# Python Read more about AWS Certified Solutions Architect Exam Notes – Lambda[…]
VPC – Virtual Private Cloud A logically isolated section of AWS cloud. Provides complete control over the environment. Cannot have one Subnet to many AZs 5 VPCs per region by default In Amazon VPC an instance retains its private IP. How to make an instance on a public subnet reachable? Create an elastic IP address Read more about AWS Certified Solutions Architect Exam Notes – VPC[…]