AWS SAA C03 AWS Certified Solutions Architect Associate Dumps

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Here are 10 multiple-choice review questions with explanations for the AWS Certified Solutions Architect - Associate (SAA-C03) exam:

1. Which AWS service is best for a highly available relational database with automatic failover?

A. Amazon DynamoDB

B. Amazon RDS with Multi-AZ

C. Amazon Redshift

D. Amazon ElastiCache✅ Correct Answer: B

Explanation: Amazon RDS (Relational Database Service) with Multi-AZ provides high availability by maintaining a standby replica in a different Availability Zone (AZ) and automatically failing over if the primary database fails. DynamoDB is NoSQL, Redshift is for data warehousing, and ElastiCache is an in-memory cache.

2. What is the most cost-effective storage option for infrequently accessed data that requires millisecond retrieval?

A. Amazon S3 Standard

B. Amazon S3 Glacier Deep Archive

C. Amazon S3 Intelligent-Tiering

D. Amazon S3 One Zone-Infrequent Access (S3 One Zone-IA)**✅ Correct Answer: D

Explanation: S3 One Zone-IA is cheaper than S3 Standard but still allows fast retrieval (milliseconds). Glacier Deep Archive has slower retrieval times (hours), while Intelligent-Tiering is for unpredictable access patterns.

3. Which service allows you to run serverless applications in response to events?

A. AWS Lambda

B. Amazon EC2

C. AWS Fargate

D. AWS Elastic Beanstalk✅ Correct Answer: A

Explanation: AWS Lambda is a serverless compute service that executes code in response to triggers (e.g., S3 uploads, API Gateway requests). EC2 and Fargate require managing servers/containers, while Elastic Beanstalk is a PaaS for deploying apps.

4. What is the best way to protect against DDoS attacks on AWS?

A. AWS Shield Standard

B. AWS WAF

C. AWS GuardDuty

D. AWS Network ACLs✅ Correct Answer: A

Explanation: AWS Shield Standard provides automatic DDoS protection at no extra cost. AWS WAF protects against web exploits (Layer 7), GuardDuty is for threat detection, and NACLs are stateless firewall rules.

5. Which AWS service provides a fully managed message queuing service for decoupling applications?

A. Amazon SQS

B. Amazon SNS

C. Amazon Kinesis

D. Amazon MQ✅ Correct Answer: A

Explanation: Amazon SQS (Simple Queue Service) is a managed message queue for decoupling microservices. SNS is for pub/sub messaging, Kinesis is for real-time data streaming, and Amazon MQ is for traditional messaging protocols (e.g., RabbitMQ).

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6. What is the best practice for securing root AWS accounts?

A. Use root credentials for daily tasks

B. Enable MFA and restrict root usage

C. Share root credentials with team members

D. Store root credentials in an S3 bucket✅ Correct Answer: B

Explanation: Enable MFA (Multi-Factor Authentication) and avoid using root credentials for daily tasks. Instead, use IAM roles/users with least-privilege access. Storing credentials in S3 is a security risk.

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7. Which AWS service provides a global content delivery network (CDN)?

A. Amazon CloudFront

B. AWS Global Accelerator

C. Amazon Route 53

D. AWS Direct Connect✅ Correct Answer: A

Explanation: Amazon CloudFront is AWS’s CDN that caches content at edge locations for low-latency delivery. Global Accelerator improves performance via AWS backbone, Route 53 is DNS, and Direct Connect is for private network connections.

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8. What is the best way to automate infrastructure deployment on AWS?

A. AWS CloudFormation

B. AWS CLI

C. AWS Management Console

D. AWS Config✅ Correct Answer: A

Explanation: AWS CloudFormation allows Infrastructure as Code (IaC) by defining resources in YAML/JSON templates. The CLI and Console are manual, while AWS Config tracks resource compliance.

9. Which database is best for a serverless, low-latency key-value store?

A. Amazon RDS

B. Amazon DynamoDB

C. Amazon Aurora

D. Amazon Redshift✅ Correct Answer: B

Explanation: DynamoDB is a serverless NoSQL database with single-digit millisecond latency. RDS and Aurora are relational databases, while Redshift is for analytics.

10. How can you improve fault tolerance for an EC2 instance?

A. Use an Auto Scaling group across multiple AZs

B. Use a larger instance type

C. Store data in EBS volumes

D. Enable EC2 hibernation✅ Correct Answer: A

Explanation: Auto Scaling groups across multiple AZs ensure redundancy if one AZ fails. Larger instances improve performance but not fault tolerance, EBS is for storage, and hibernation pauses instances.

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Final Tips for AWS SAA C03 AWS Certified Solutions Architect Associate Dumps:

• Focus on high availability, cost optimization, security, and serverless services.
• Understand AWS Well-Architected Framework pillars.
• Practice scenario-based questions (e.g., "What is the MOST cost-effective solution for X?").

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