Free AWS SAA-C03 Actual Exam Questions – Solutions Architect Questions - Question 7 Discussion
company also uses machine learning (ML) models to forecast annual revenue based on neat real-
time reports. The reports are generated by using the same RDS for PostgreSQL database. The
database performance slows during business hours. The company needs to improve database
performance.
Which solution will meet these requirements MOST cost-effectively?
D feels best since it keeps latency low and offloads read traffic without cross-region costs.
I agree with going local on this one. Option D makes the most sense because a same-region read replica handles read traffic without the cross-region latency or extra costs from A. Multi-AZ (B) won’t help since it’s for failover, not performance. AWS DMS (C) sounds complicated and expensive just to offload reads. So yeah, sticking with D seems like the simplest, cheapest fix to improve read performance during busy hours.
D. Multi-AZ (B) is mainly for high availability, not performance, so that can be ruled out. Cross-region read replicas (A) add latency and cost, which isn’t ideal here. AWS DMS (C) seems like overkill and more complex than needed. A local read replica (D) is the simplest way to offload read traffic and keep reports running smoothly without breaking the bank.
D vs A? Local replica avoids cross-region latency and extra costs, fits needs better.
Maybe D is best since a read replica in the same region reduces read load and avoids extra latency. Cross-region options add cost and delay, and Multi-AZ doesn't help with read performance.
It’s D. Cross-region replicas add latency and cost, and Multi-AZ is mainly for failover, not read scaling. Using a local read replica is the cheapest way to reduce read load during business hours.
D makes sense here since a read replica in the same region can offload read traffic cheaply without the complexity of cross-region or multi-AZ setups.