AWS DOP-C02: Operational Automation with Systems Manager
AWS Systems Manager is most useful when it becomes the operating layer for a fleet rather than a collection of one-off console tools.…
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Cloud Computing.
Cloud platforms, workload architecture, operations, storage, and infrastructure.
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AWS DOP-C02: CloudFormation for Reliable Infrastructure as Code
AWS CloudFormation turns infrastructure definitions into managed stacks, but reliable infrastructure as code requires more than storing a template in version control. Teams…
Read articleAWS DOP-C02: Event-Driven Operations with EventBridge
Amazon EventBridge is often described as a serverless event bus, but its operational value comes from turning changes in AWS systems and applications…
Read articleAWS DOP-C02: CloudWatch Observability for Distributed Applications
Distributed applications fail in ways that single-server monitoring cannot explain. A user request may cross a load balancer, container service, Lambda function, queue,…
Read articleAWS DOP-C02: Deployment Strategies with CodeDeploy
AWS CodeDeploy automates application deployment across Amazon EC2 and on-premises instances, AWS Lambda, and Amazon ECS, but the important architectural decision is not…
Read articleAWS DOP-C02: CI/CD with CodePipeline and CodeBuild
AWS CodePipeline and AWS CodeBuild solve different parts of continuous delivery. CodePipeline models the release workflow as stages and actions, while CodeBuild provides…
Read articleAWS SAA-C03: Well-Architected Tradeoffs in Real Systems
The AWS Well-Architected Framework is most useful when it is treated as a way to reason about tradeoffs, not as a checklist that…
Read articleAWS SAA-C03: SQS, SNS, and EventBridge Architecture Patterns
Amazon SQS, Amazon SNS, and Amazon EventBridge are all used to move work between systems, but they solve different integration problems. SQS stores…
Read articleAWS SAA-C03: S3 Storage Classes and Lifecycle Design
Amazon S3 storage classes are not simply a list from fastest to cheapest. Each class encodes assumptions about access frequency, retrieval speed, resilience…
Read articleAWS SAA-C03: Securing S3 with Block Public Access and Bucket Policies
Amazon S3 security is not a single bucket-policy problem. Access can be influenced by identity policies, bucket policies, access points, object ownership, encryption…
Read articleAWS SAA-C03: Route 53 Routing Policies and Failover
Amazon Route 53 is often introduced as managed DNS, but architecture decisions begin after the zone exists. The important question is how DNS…
Read articleAWS SAA-C03: RDS Multi-AZ vs Read Replicas
RDS Multi-AZ and read replicas are often mentioned together because both involve additional database copies, but their primary purposes are different. Multi-AZ is…
Read articleAWS SAA-C03: Public vs Private Subnets
Public and private subnets are among the first concepts people learn in Amazon VPC, yet the labels are frequently misunderstood. A subnet is…
Read articleAWS SAA-C03: NAT Gateway vs NAT Instance in Modern AWS
NAT remains a common part of AWS IPv4 architectures because private workloads often need outbound access to software repositories, partner APIs, or the…
Read articleAWS SAA-C03: Lambda Concurrency and Resilient Serverless Design
AWS Lambda can scale rapidly without server management, but “serverless” does not mean capacity planning disappears. Concurrency, function duration, retry behavior, event-source semantics,…
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