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Lessons (12)

• Resilience, Disaster Recovery and Multi-Region Design

  … Multi-AZ does not recover logically corrupted data. The four DR strategies mermaid flowchart LR A[Backup and …

• DynamoDB Modeling, RDS Scaling and Data Resilience

  Design DynamoDB tables around access patterns, then scale and protect relational databases with replicas, proxies and Multi-AZ …

• AWS Databases: Choose the Right One

  … Further reading: [RDS Multi-AZ DB instances](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZSingleStandby.html …

• Cost Optimization and the Well-Architected Framework

  … Does it recover from failure and meet demand? Multi-AZ, backups, limits, tested recovery Performance efficiency Are we …

• AWS Interview Questions: Clear Answers

  … An AZ is an isolated data-centre area inside that Region. I use multiple AZs for availability, while …

• AWS: Start Here

  … a security and billing boundary. - A Region contains multiple AZs. - Start with managed services when they fit; they …

• Brokers, Replication & Durability

  … flowchart LR subgraph AZ1["Zone A"] BA["Broker 1<br/ P0 👑"] end subgraph AZ2["Zone B"] BB["Broker …

• EC2, Storage and Auto Scaling

  … Then let the Auto Scaling group create matching instances in multiple AZs. One virtual server, explained through the …

• Kafka vs RabbitMQ & the Kafka Ecosystem

  … Managed services handle brokers, upgrades and scaling: Confluent Cloud , Amazon MSK , Aiven , Redpanda (a Kafka-compatible engine), Azure …

• Run Containers on AWS with ECR and ECS

  … with one task for a lab, or multiple tasks across AZs for an availability design. Private task subnets …

• API Gateway, BFF & Service Discovery

  … networking as infrastructure As services multiply, every one needs retries, timeouts, mutual TLS, metrics and tracing. Instead of …

• Practical Project: Deploy a Real CRM App on EKS

  … at least 2 replicas across AZs with a PodDisruptionBudget. - [ ] Enable RDS Multi-AZ and test a snapshot restore …