A useful AWS observability design does more than collect logs and draw dashboards. It connects infrastructure health, application behavior, user-facing symptoms, and distributed request paths […]
Amazon Certifications
Amazon AWS DOP-C02: Automating AWS Incident Response
Automated incident response on AWS is not the same as automatically fixing everything. The goal is to detect a trustworthy condition, enrich it with enough […]
Amazon AWS SAA-C03: Transit Gateway, VPC Peering, or PrivateLink?
Choosing between AWS Transit Gateway, VPC peering, and AWS PrivateLink becomes much easier when the design question is framed correctly. These services are often grouped […]
Amazon AWS SAA-C03: DynamoDB vs Aurora Serverless
DynamoDB and Aurora Serverless can both remove much of the capacity administration associated with traditional databases, but that similarity is superficial. Amazon DynamoDB is a […]
Amazon AWS SAA-C03: Event-Driven Serverless Architecture on AWS
An event-driven AWS application separates synchronous request admission from asynchronous execution, buffering and fan-out. API Gateway can front a request, Lambda performs bounded computation, SQS […]
Amazon AWS SAA-C03: CloudFront vs Global Accelerator
Amazon CloudFront and AWS Global Accelerator both use the AWS global network and edge infrastructure to improve application performance, but they operate at different layers […]
Amazon AWS SAA-C03: EFS, FSx, or S3 for Storage?
Amazon EFS, Amazon FSx, and Amazon S3 can all hold application data, but they expose that data through very different storage models. EFS is a […]
Amazon AWS SCS-C03: How AWS IAM Policy Types Work Together
AWS authorization is difficult when policy documents are treated as independent switches. An identity policy can allow an action and the request can still be […]
Amazon AWS SCS-C03: WAF, Shield, Network Firewall, and Firewall Manager
AWS WAF, AWS Shield, AWS Network Firewall, and AWS Firewall Manager are often grouped together as “firewall services,” but they operate at different layers and […]
Amazon AWS SCS-C03: Choosing an AWS Security Log Platform
AWS security logging is not a choice between three interchangeable log stores. CloudTrail Lake, CloudWatch Logs, and Amazon Security Lake were designed around different data […]
Amazon AWS SCS-C03: Certificate Manager vs Private CA
AWS Certificate Manager and AWS Private Certificate Authority solve related problems, but they sit at different layers of public-key infrastructure. Certificate Manager, usually called ACM, […]
Amazon AWS SCS-C03: Config, Security Hub, or Audit Manager?
AWS Config, AWS Security Hub, and AWS Audit Manager can all appear in a cloud-governance architecture, but they answer different questions. Config records how AWS […]
Amazon AWS AIF-C01: AI, Machine Learning, Generative AI, and Agentic AI
AWS revised the AWS Certified AI Practitioner AIF-C01 guide in 2026 to explicitly include agentic AI alongside artificial intelligence, machine learning, deep learning, large language […]
Amazon AWS AIF-C01: Choosing a Foundation Model on AWS
Choosing a foundation model is a workload decision, not a brand contest. The current AWS Certified AI Practitioner AIF-C01 domain on foundation-model applications explicitly includes […]
Amazon AWS AIF-C01: Improving Generative AI on AWS
When a generative-AI application is disappointing, the right fix depends on the failure. The AWS Certified AI Practitioner AIF-C01 foundation-model domain distinguishes prompt engineering, retrieval-augmented […]