DBS-C01 · Question #3
A company is using Amazon RDS for MySQL to redesign its business application. A Database Specialist has noticed that the Development team is restoring their MySQL database multiple times a day when…
The correct answer is C. Migrate to Amazon Aurora MySQL and enable the Aurora Backtrack feature. Explanation Option C is correct because Amazon Aurora MySQL supports the Backtrack feature, which allows you to rewind the database to a specific point in time within seconds - without needing to restore from a backup or snapshot. This dramatically reduces downtime compared to…
Question
A company is using Amazon RDS for MySQL to redesign its business application. A Database Specialist has noticed that the Development team is restoring their MySQL database multiple times a day when Developers make mistakes in their schema updates. The Developers sometimes need to wait hours to the restores to complete. Multiple team members are working on the project, making it difficult to find the correct restore point for each mistake. Which approach should the Database Specialist take to reduce downtime?
Options
- ADeploy multiple read replicas and have the team members make changes to separate replica
- BMigrate to Amazon RDS for SQL Server, take a snapshot, and restore from the snapshot
- CMigrate to Amazon Aurora MySQL and enable the Aurora Backtrack feature
- DEnable the Amazon RDS for MySQL Backtrack feature
How the community answered
(17 responses)- A6% (1)
- B12% (2)
- C76% (13)
- D6% (1)
Explanation
Explanation
Option C is correct because Amazon Aurora MySQL supports the Backtrack feature, which allows you to rewind the database to a specific point in time within seconds - without needing to restore from a backup or snapshot. This dramatically reduces downtime compared to traditional restores, and developers can quickly and precisely backtrack to a point just before a schema mistake was made.
Why the distractors are wrong:
- Option A is incorrect because read replicas are for scaling read traffic, not for schema testing or rollback - schema changes replicated to replicas would propagate the same mistake.
- Option B is incorrect because migrating to SQL Server adds unnecessary complexity, and snapshot restores are still slow and don't solve the core problem of lengthy recovery times.
- Option D is a trap - Backtrack is not available on standard Amazon RDS for MySQL; it is exclusively an Aurora-specific feature, making this option technically impossible.
Memory Tip
Remember: "Backtrack = Aurora only." If you see "Backtrack" in an exam question, the answer will always involve Amazon Aurora, never standard RDS. Think of Aurora as having a rewind button that RDS simply doesn't have.
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