Domain 3: Resilient Cloud Solutions (15% of the exam content) - AWS Certification
Task 3.1: Implement highly available solutions to meet resilience and business requirementsTask 3.2: Implement self-healing and scaling solutions to meet resilience and business requirementsTask 3.3: Implement backup and restore strategies

Domain 3: Resilient Cloud Solutions (15% of the exam content)

This domain accounts for 15% of the exam content.

Task 3.1: Implement highly available solutions to meet resilience and business requirements

Knowledge of:

  • Multi-AZ and multi-Region deployments (for example, compute layer, data layer)

  • SLAs

  • Replication and failover methods for stateful services

  • Techniques to achieve high availability (for example, Multi-AZ, multi-Region)

Skills in:

  • Implementing high availability for compute (for example, Auto Scaling groups, Spot Instance interruption handling)

  • Implementing high availability for storage (for example, Amazon S3 replication, Amazon RDS Multi-AZ)

  • Implementing high availability for databases (for example, Amazon RDS read replicas, Amazon Aurora Global Datenbank)

  • Implementing high availability for networking (for example, Route 53 routing policies, Global Accelerator)

  • Implementing high availability for containers (for example, Amazon ECS, Amazon EKS)

  • Implementing high availability for serverless (for example, Lambda)

Task 3.2: Implement self-healing and scaling solutions to meet resilience and business requirements

Knowledge of:

  • Auto scaling concepts and features

  • Self-healing architectures

  • Scaling strategies (for example, horizontal, vertical)

  • Immutable infrastructure concepts

Skills in:

  • Implementing auto scaling for compute (for example, EC2 Auto Scaling, Application Auto Scaling)

  • Implementing auto scaling for containers (for example, Amazon ECS, Amazon EKS)

  • Implementing auto scaling for serverless (for example, Lambda provisioned concurrency)

  • Implementing self-healing architectures (for example, health checks, automated recovery)

  • Implementing immutable infrastructure (for example, blue/green deployments, canary deployments)

Task 3.3: Implement backup and restore strategies

Knowledge of:

  • Backup and restore strategies

  • Disaster recovery strategies (for example, backup and restore, pilot light, warm standby, active-active)

  • RPO and RTO concepts

Skills in:

  • Implementing backup and restore for compute (for example, AMIs, EC2 instance recovery)

  • Implementing backup and restore for storage (for example, Amazon S3 versioning, Backup)

  • Implementing backup and restore for databases (for example, Amazon RDS snapshots, DynamoDB point-in-time recovery)

  • Implementing disaster recovery strategies (for example, CloudFormation, Backup)

  • Implementing cross-Region and cross-account backup strategies