Passing the AWS Solutions Architect Associate Exam
I passed the SAA-C03 on my first attempt. Here's the format, what I used to study, and what actually mattered.
Exam Format
- 65 questions, 130 minutes
- Scored 100–1000, 720+ to pass (~72% accuracy)
- $150 USD
- Mix of single-answer and multiple-answer scenario questions
What Worked
- Hands-on labs first — I built real projects on the AWS Free Tier before touching study materials. Having provisioned actual VPCs, Lambda functions, and S3 buckets made the exam scenarios feel familiar rather than abstract.
- A Cloud Guru + official practice exams — The course gave structure; the official practice exams showed exactly how AWS phrases questions and which distractors to watch for.
- Focus on "why" — The exam rarely asks what a service does. It asks which service to pick given constraints — cost, latency, durability, compliance. Understanding trade-offs matters more than memorizing feature lists.
- Weak-area drilling — After each practice exam, I reviewed every wrong answer and spent extra time on the domains where I scored lowest (for me: database selection and migration strategies).
Key Domains
- Resilient architectures — Multi-AZ, multi-region, auto scaling, decoupled designs
- High-performing architectures — Caching (ElastiCache, CloudFront), storage tiers, compute selection
- Secure architectures — IAM policies, encryption at rest/in transit, VPC security groups vs NACLs
- Cost-optimized architectures — Reserved vs Spot vs On-Demand, S3 storage classes, right-sizing