DOP-C02 Question 200
Select 3Your company runs a high-availability application on an Amazon EKS cluster. The cluster is configured to use Amazon RDS for its database and stores critical data in an Amazon S3 bucket. During a routine audit, it was discovered that the application does not have a documented recovery procedure in case of a complete regional failure. Which steps should be included in the recovery procedure to ensure minimal downtime and data loss?
- A
Set up an automated backup of the Amazon RDS database and enable cross-Region replication for the Amazon S3 bucket.
- B
Configure the Amazon EKS cluster to automatically failover to a secondary Region during a regional outage.
- C
Use AWS CloudFormation to deploy the EKS cluster infrastructure in a secondary Region and restore the database from the latest backup.
- D
Pre-provision a warm standby Amazon EKS cluster in the secondary Region and synchronize data to it periodically.
- E
Implement Route 53 DNS failover to route traffic to the application in the secondary Region during a regional outage.
Show answer and explanation
Correct answers: A, C, E
Explanation
To handle a complete regional failure, the recovery procedure should focus on ensuring the availability of critical data and application infrastructure in a secondary Region. Automated RDS backups and cross-Region S3 replication ensure data availability. AWS CloudFormation allows for rapid recreation of the EKS infrastructure, and Route 53 DNS failover ensures minimal downtime by routing traffic to the secondary Region. Pre-provisioning a warm standby cluster can be considered, but it is not always cost-effective or practical.
- A. Correct.
This is correct because having automated backups of RDS and enabling cross-Region replication for S3 ensures that critical data is available in a secondary Region.
- B. Incorrect.
This is incorrect because Amazon EKS does not support automatic failover to another Region. Failover must be managed through manual or automated scripts.
- C. Correct.
This is correct because using AWS CloudFormation to recreate the EKS infrastructure in a secondary Region and restoring the database ensures application recovery.
- D. Incorrect.
This is incorrect because pre-provisioning a warm standby cluster may not be the most cost-effective or feasible solution for all scenarios. Additionally, it was not mentioned in the scenario as an existing setup.
- E. Correct.
This is correct because Route 53 DNS failover ensures that users are redirected to the application in the secondary Region during a regional outage.