Practice Test 3 | AWS Certified Solutions Architect Associate | SAA-C03 | Dumps | Mock Test
Your company currently has data hosted in an Amazon Aurora MySQL DB. Since this data is critical, there is a need to ensure that it can be made available in another region in case of a disaster. How can this be achieved?
A. Make a copy of the underlying EBS Volumes in the Amazon Cluster in another region.
B. Enable Multi-AZ for the Aurora database.
C. Creating a read replica of Amazon Aurora in another region.
D. Create an EBS Snapshot of the underlying EBS Volumes in the Amazon Cluster and then copy them to another region.
Explanation:
Answer – C
Read replicas in Amazon RDS for MySQL, MariaDB, PostgreSQL, and Oracle provide a complementary availability mechanism to Amazon RDS Multi-AZ Deployments. You can promote a read replica if the source DB instance fails. You can also replicate DB instances across AWS Regions as part of your disaster recovery strategy. This functionality complements the synchronous replication, automatic failure detection, and failover provided with Multi-AZ deployments.
AWS Documentation mentions the following:
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You can create an Amazon Aurora MySQL DB cluster as a Read Replica in a different AWS Region than the source DB cluster. Taking this approach can improve your disaster recovery capabilities, let you scale read operations into a region that is closer to your users, and make it easier to migrate from one region to another.
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- For more information on Amazon Aurora Cross-Region Replication, please refer to the URL below.
NOTE:
** In the question, they clearly mention that “there is a need to ensure that it can be made available in another region in case of a disaster.” So Multi-AZ is not the regional-wide solution here.**
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