Amazon
DBS-C01 · Question #173
A bank plans to use an Amazon RDS for MySQL DB instance. The database should support read-intensive traffic with very few repeated queries. Which solution meets these requirements?
The correct answer is D. Create a read replica of the DB instance. Use the read replica to distribute the read traffic. In this case elastic cache will have to reach to the database to get the information which defeats the purpose of Elasticache.
Submitted by chiamaka_o· Mar 6, 2026Workload-Specific Database Design
Question
A bank plans to use an Amazon RDS for MySQL DB instance. The database should support read-intensive traffic with very few repeated queries. Which solution meets these requirements?
Options
- ACreate an Amazon ElastiCache cluster. Use a write-through strategy to populate the cache.
- BCreate an Amazon ElastiCache cluster. Use a lazy loading strategy to populate the cache.
- CChange the DB instance to Multi-AZ with a standby instance in another AWS Region.
- DCreate a read replica of the DB instance. Use the read replica to distribute the read traffic.
How the community answered
(38 responses)- A13% (5)
- B5% (2)
- C8% (3)
- D74% (28)
Explanation
In this case elastic cache will have to reach to the database to get the information which defeats the purpose of Elasticache.
Topics
#RDS for MySQL#read scaling#read replicas#performance optimization
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