SAA-C03 Question 193

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose B1

  Read Replica = scale database reads. Cache = reduce database reads.

• Chose B1

  The key requirements are: a. Reduce database reads b. Maintain high availability c. The application is read-heavy The best fit is ElastiCache for Redis. Redis supports high availability through features such as replication and Multi-AZ deployments with automatic failover. It is therefore a strong choice when the question emphasizes both: reduce database reads + high availability Read replicas distribute read traffic, but they don't necessarily reduce the total number of database reads. So, A can't be the answer

• Chose A1

  Two requirements need to be addressed: Reduce database reads → offload reads to replicas Ensure high availability → replicas provide redundancy Caching reduces database reads, BUT: Requires application code changes to implement cache logic. Cache misses still hit the database. Doesn't inherently provide HA for the database itself. More complex than just adding read replicas