Domain 1.3: Reliability and Resilience — AWS SAP-C02 Practice Question 11

Q: What mistakes do candidates make on this AWS SAP-C02 question?

Choosing cross-region read replicas, which rely on binlog replication and can have higher lag.

How to approach this question

Match the sub-second RPO requirement to Aurora Global Database.

Full Answer

C.Use Aurora Global Database. Deploy EC2 instances in an Auto Scaling group in the secondary region. Use Route 53 with latency-based routing and health checks.✓ Correct

Use Aurora Global Database. Deploy EC2 instances in an Auto Scaling group in the secondary region. Use Route 53 with latency-based routing and health checks.

Aurora Global Database uses dedicated infrastructure for fast cross-region replication (RPO < 1s). Having compute ready in the secondary region meets the fast RTO.

Common mistakes

Choosing cross-region read replicas, which rely on binlog replication and can have higher lag.

A critical financial application runs on Amazon EC2 instances behind an ALB. The database is Amazon Aurora PostgreSQL. The business requires an RPO of 1 second and an RTO of 1 minute in the event of a complete AWS Region failure. Which disaster recovery strategy meets these requirements?

How to approach this question

Full Answer

Common mistakes

Practice the full AWS Solutions Architect Professional SAP-C02 Practice Exam 6

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