Design resilient architectures
41 practice questions with explanations — 15 free to try
PassNova has 41 AWS Solutions Architect (SAA-C03) practice questions on Design resilient architectures, each with a clear explanation. A 15-question taster is free with no sign-up; the full bank is part of PassNova Premium. Updated for 2026.
Design resilient architectures: example questions & answers
2 worked examples with answers and explanations below. Try 15 AWS Solutions Architect (SAA-C03) questions free in the browser; the full 41-question Design resilient architectures bank is part of PassNova Premium.
A web application requires a relational database that can withstand the failure of an entire Availability Zone with automatic failover. Which configuration meets this requirement?
- AAmazon RDS with a read replica in the same AZ
- BAmazon RDS Multi-AZ deployment✓
- CA single-AZ RDS instance with automated backups
- DAmazon RDS with a read replica in another Region
Answer: RDS Multi-AZ maintains a synchronous standby replica in a different AZ and automatically fails over if the primary fails, providing high availability. Read replicas are for scaling reads, not automatic failover.
A solutions architect needs to decouple a web tier from a backend processing tier so that messages are not lost if the backend is temporarily unavailable. Which service is MOST appropriate?
- AAmazon SNS
- BAmazon SQS✓
- CAWS Step Functions
- DAmazon Kinesis Data Streams
Answer: Amazon SQS is a managed message queue that buffers messages durably, allowing the backend to process them when available and preventing message loss during outages.