Table of Contents
Question
A company runs a database on Amazon Aurora in the us-east-1 Region. The company has a disaster recovery requirement that the database be available in another Region. Which solution meets this requirement with minimal disruption to the database operations?
A. Perform an Aurora Multi-AZ deployment.
B. Deploy Aurora cross-Region read replicas.
C. Create Amazon Elastic Block Store (Amazon EBS) volume snapshots for Aurora and copy them to another Region.
D. Deploy Aurora Replicas.
Answer
B. Deploy Aurora cross-Region read replicas.
Explanation 17
The correct answer is option B: Deploy Aurora cross-Region read replicas.
Explanation: To meet the disaster recovery requirement of having the database available in another Region with minimal disruption to database operations, deploying Aurora cross-Region read replicas is the recommended solution. Let’s discuss each option to understand why option B is the correct choice:
A. Perform an Aurora Multi-AZ deployment: An Aurora Multi-AZ deployment is designed to provide high availability within the same AWS Region. It creates a standby instance in a different Availability Zone (AZ) within the same Region to automatically handle failover in case of an infrastructure issue. However, it does not fulfill the requirement of having the database available in another Region.
B. Deploy Aurora cross-Region read replicas: Deploying Aurora cross-Region read replicas is the optimal solution for disaster recovery with minimal disruption. Aurora allows you to create read replicas in another AWS Region, which can be promoted to become the primary instance during a disaster recovery scenario. These replicas are continuously updated from the primary database, ensuring data consistency. In the event of a failure in the primary Region, the read replica in the secondary Region can be promoted to serve as the primary database, providing continuity of operations.
C. Create Amazon Elastic Block Store (Amazon EBS) volume snapshots for Aurora and copy them to another Region: Creating EBS volume snapshots for Aurora and copying them to another Region is a valid backup and recovery mechanism, but it does not provide real-time replication or automatic failover capabilities. This option would require manual recovery steps and may result in longer recovery times and disruption to database operations.
D. Deploy Aurora Replicas: Aurora replicas are read-only copies of the primary database within the same Region. While replicas provide scalability and offload read traffic, they do not fulfill the requirement of having the database available in another Region for disaster recovery purposes.
In conclusion, to meet the requirement of having the database available in another Region with minimal disruption to database operations, the best solution is to deploy Aurora cross-Region read replicas (option B). This ensures real-time replication of data and automatic failover capabilities, providing a reliable disaster recovery solution.
Amazon AWS Certified Cloud Practitioner CLF-C02 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner CLF-C02 exam and earn Amazon AWS Certified Cloud Practitioner CLF-C02 certification.