SOA-C02 Question 104
Select 2Your organization has a critical application running on an Amazon RDS database. The Recovery Time Objective (RTO) for this application is less than 15 minutes, and the Recovery Point Objective (RPO) is less than 5 minutes. To meet these requirements, you want to automate backups and ensure minimal data loss in case of an outage. Which combination of strategies would best meet these requirements?
- A
Enable RDS automated backups and set the backup retention period to 7 days.
- B
Manually create on-demand RDS snapshots every hour.
- C
Enable RDS Multi-AZ deployment for automatic failover.
- D
Use AWS Backup to create backup policies for the RDS instance.
- E
Enable read replicas for the RDS instance in the same region.
Show answer and explanation
Correct answers: A, C
Explanation
To meet the stated RTO and RPO requirements, enabling RDS automated backups ensures point-in-time recovery to minimize data loss (RPO), and enabling Multi-AZ deployment provides automatic failover to reduce downtime (RTO). These features work together to ensure the application meets its availability and recovery objectives.
- A. Correct.
Enabling RDS automated backups ensures that backups are taken automatically and that point-in-time recovery is available, which helps meet the RPO requirement. The retention period can be adjusted for compliance and recovery requirements.
- B. Incorrect.
Manually creating on-demand RDS snapshots every hour is not an efficient or scalable solution for meeting strict RTO and RPO requirements, as it requires manual intervention and may lead to gaps in snapshots.
- C. Correct.
Enabling RDS Multi-AZ deployment ensures high availability and automatic failover to a standby instance, reducing downtime and meeting the RTO requirement.
- D. Incorrect.
Using AWS Backup is a robust solution for compliance and retention policies, but it does not directly address the RTO and RPO requirements specified in the scenario.
- E. Incorrect.
Read replicas are used for scaling read operations and do not provide failover capabilities or affect backup strategies, so they do not help meet the RTO and RPO requirements in this scenario.