Official AWS references

• https://docs.aws.amazon.com/aws-certification/latest/devops-engineer-professional-02/devops-engineer-professional-02-domain3.html
• https://docs.aws.amazon.com/wellarchitected/latest/reliability-pillar/welcome.html
• https://docs.aws.amazon.com/whitepapers/latest/disaster-recovery-workloads-on-aws/disaster-recovery-options-in-the-cloud.html
• https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.html
• https://docs.aws.amazon.com/fis/latest/userguide/what-is.html
• https://docs.aws.amazon.com/resilience-hub/latest/userguide/arh-testing.html
• https://docs.aws.amazon.com/aws-backup/latest/devguide/whatisbackup.html