AWS SAA-C03 2025 Study Bundle | 65 Real Exam Questions, Cheat Sheets, Reference Architectures & Pro Exam Hacks

​AWS SAA-C03 Solutions Architect Associate 2025 – Full​
​Practice Test + Cheat Sheets + Diagrams (Updated &​
​Verified)​

​AWS SAA-C03 2025 Study Bundle: 65 Real Questions +​
​Cheat Sheets + Architectures + Exam Hacks​




​📘 AWS Certified Solutions Architect – Associate​
​(SAA-C03)​

​✅ Practice Questions 1–65 with Answers & Rationales​

​Format:​​Multiple Choice (1 correct answer unless stated​​otherwise)​
​Level:​​Updated for 2025 Exam Objectives​




​Question 1​

​A company wants to host a static website for their product launch using AWS. The​
​site must be globally accessible with minimal latency and incur the lowest cost.​

​Which solution meets these requirements?​

​A. Host the website using Amazon EC2 and NGINX​
​B. Use Amazon S3 with static website hosting and CloudFront​

, ​2​


​C. Use Amazon API Gateway with Lambda integration​
​D. Deploy the site using Amazon EFS and EC2 Auto Scaling​

​✅​​Correct Answer:​​B​
​📘​​Rationale:​​Amazon S3 with static website hosting​​is cost-effective and​
​scalable. Adding CloudFront ensures global low-latency access via CDN. EC2 and​
​EFS are overkill for a static site.​
​📌​​Services:​​S3, CloudFront​




​Question 2​

​An application running on EC2 instances in a public subnet needs to access an RDS​
​database in a private subnet.​

​What must be configured to allow secure communication?​

​A. Enable NAT Gateway for the public subnet​
​B. Assign Elastic IP to the RDS instance​
​C. Configure Security Groups to allow inbound/outbound traffic​
​D. Attach an IAM role to the EC2 instance​

​✅​​Correct Answer:​​C​
​📘​​Rationale:​​For EC2 to connect to RDS, security group rules must allow inbound​
​access on the database port (e.g., 3306). IAM roles don’t grant network-level​
​access.​
​📌​​Services:​​EC2, RDS, VPC​




​Question 3​

​Which AWS service allows decoupling of components in a microservices​
​architecture?​

​A. Amazon S3​
​B. AWS Lambda​

, ​3​


​C. Amazon SQS​
​D. AWS CodeDeploy​

​✅​​Correct Answer:​​C​
​📘​​Rationale:​​Amazon SQS (Simple Queue Service) allows​​asynchronous message​
​communication between decoupled services. Lambda can process messages, but​
​SQS is the decoupler.​
​📌​​Services:​​SQS, Microservices​




​Question 4​

​A developer needs temporary access credentials to interact with AWS services​
​from a mobile app.​

​Which service provides the best solution?​

​A. Amazon Cognito​
​B. AWS KMS​
​C. AWS Secrets Manager​
​D. Amazon GuardDuty​

​✅​​Correct Answer:​​A​
​📘​​Rationale:​​Cognito issues temporary AWS credentials​​using Identity Pools,​
​making it ideal for mobile or web apps without exposing IAM keys.​
​📌​​Services:​​Cognito, IAM​




​Question 5​

​Which of the following actions reduces cost​​and​​improves​​high availability for a​
​web application deployed across multiple Availability Zones?​

​A. Enable multi-AZ in RDS only​
​B. Use Auto Scaling and place instances behind an ELB​
​C. Use one large EC2 instance in a single AZ​
​D. Use an EBS volume shared across AZs​

, ​4​


​✅​​Correct Answer:​​B​
​📘​​Rationale:​​Auto Scaling combined with Elastic​​Load Balancing (ELB) distributes​
​traffic and adds/removes instances based on demand, improving availability and​
​cost-efficiency.​
​📌​​Services:​​EC2, ELB, Auto Scaling​




​Question 6​

​Which service provides real-time application metrics, logs, and system-level​
​monitoring?​

​A. AWS CloudTrail​
​B. Amazon CloudWatch​
​C. AWS Config​
​D. AWS Inspector​

​✅​​Correct Answer:​​B​
​📘​​Rationale:​​CloudWatch offers metrics, logs, dashboards,​​alarms, and insights​
​into system health. CloudTrail tracks API calls, not metrics.​
​📌​​Services:​​CloudWatch​




​Question 7​

​A company stores 100 TB of data that is rarely accessed. Which storage class is​
​most cost-effective?​

​A. S3 Standard​
​B. S3 Intelligent-Tiering​
​C. S3 Glacier Deep Archive​
​D. Amazon EBS Cold HDD​

​✅​​Correct Answer:​​C​
​📘​​Rationale:​​S3 Glacier Deep Archive is the cheapest​​for long-term, infrequent​
​access data (e.g., archival). EBS is block storage and not suited for this use case.​
​📌​​Services:​​S3 Glacier​