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SDLC = Software Developer Life Cycle Different tools for AWS CICD AWS CodeCommit (git repo, deprecated) AWS CodePipeline (the overal workflow controller for CICD) AWS CodeBuild (building and testing) AWS CodeDeploy (deployment tool) AWS CodeStar (software dev...

Question 1 Topic: Monitoring & Logging Scenario: A company has a mobile application that makes HTTP API calls to an Application Load Balancer (ALB), which routes requests to an AWS Lambda function. Multiple versions of the application are in use, defined in th...

Q21 A company is tired of maintaining the servers (EC2) that run their build tool (Jenkins). They also need to encrypt their software files (artifacts) for security. What is the lowest maintenance way to fix both problems? A: Keep the servers, but use automati...

Infrastructure as Code Same concept as K8S Each resources is tagged, so can be easily tracked in cost management Saving strategy: automatically delete the DEV env at 5pm and recreate at 8am Automated generate of infrastructure diagram Separation of concerns ...

Question 41 How should a DevOps engineer configure near-real-time status updates and manual approval requests from AWS CodePipeline to post to a custom chat tool with webhook support? Options: A: Create a CloudWatch Logs subscription filtering on CodePipeline ...

What is IAM access control who can access (authentication)? and what can they access (authorization)? Identity authentication Policy authorization Role a named collection of access rights Service Role a specific type of role usually used by a AWS serv...

continuous auditor for the AWS env it allows you to assess, audit, and evaluate the configurations of the AWS resources it tells you what the resource looks like now, and how it has changed over time Mechanisms: Resource Inventory & History: it maintains a...

Basics "eyes and ears" of your AWS env the "central nervous system" of the cloud colelcts signals (data), makes sense of them (analysis), and can trigger reflexes (automation) when something goes wrong a collections of tools Types of Data Metrics: numer...

If CloudWatch is the heart rate monitor and AWS Config is the building inspector, then AWS CloudTrail is the surveillance camera. It tells you who did it What is it the auditing service that records every single API Call made in your AWS account everything ...

What is it formerly called CloudWatch Events a severless "Event Bus" that connects different parts of your application together. Allows services to talk to each other without being directly "plugged into" one another a routing engine: receives message, then ...

What is it a distributed tracing service that helps you analyze and debug applications, especially those built using a microservices or serverless architecture a GPS tracker for every request that enters your system, it follows the request as it travels throu...

What is it? a PaaS that makes it easy to deploy and scale web applications infrastructure as code Managed service, uses EC2, ASG, ELB, RDS ... handles capaicity provisioning, laod balancing, scaling, applicaiton health monitoring, instance configuration appl...