Aws Certified Solutions Architect Practice Tests Questions And 100% Verified Answers Plus Rationales 2026.Aws Certified Solutions Architect Practice Tests Questions And 100% Verified Answers Plus Rationales 2026.

AWS CERTIFIED SOLUTIONS ARCHITECT PRACTICE
TESTS QUESTIONS AND 100% VERIFIED ANSWERS PLUS
RATIONALES 2026.


1. A company wants to host a highly available web application across multiple
Availability Zones. Which service should be used to distribute incoming traffic?
A. Amazon CloudFront
B. Elastic Load Balancing
C. Amazon Route 53
D. AWS Direct Connect
Correct Answer: B
Rationale: Elastic Load Balancing distributes traffic across multiple targets and
Availability Zones. CloudFront is for CDN, Route 53 handles DNS, and Direct
Connect is for private connectivity.



2. Which storage class is most cost-effective for long-term archival data that is rarely
accessed?
A. S3 Standard
B. S3 Intelligent-Tiering
C. S3 Glacier Deep Archive
D. S3 One Zone-IA
Correct Answer: C
Rationale: S3 Glacier Deep Archive offers the lowest cost for long-term storage with
infrequent access. Other classes are more expensive or designed for more frequent
access.



3. A solutions architect needs to design a fault-tolerant database solution. Which AWS
service provides automatic failover?
A. Amazon RDS Multi-AZ
B. Amazon DynamoDB
C. Amazon Redshift
D. Amazon Aurora Serverless
Correct Answer: A
Rationale: RDS Multi-AZ deployments provide automatic failover. DynamoDB is
inherently distributed but not relational, Redshift is for analytics, and Aurora
Serverless does not focus on failover in the same way.



4. Which AWS service allows you to run code without provisioning or managing
servers?
A. Amazon EC2
B. AWS Lambda

, C. Amazon ECS
D. AWS Elastic Beanstalk
Correct Answer: B
Rationale: AWS Lambda is serverless. EC2 and ECS require infrastructure
management, and Beanstalk abstracts but still uses servers.



5. A company needs a globally distributed DNS service with high availability. Which
service should they use?
A. Amazon CloudFront
B. AWS Global Accelerator
C. Amazon Route 53
D. AWS Shield
Correct Answer: C
Rationale: Route 53 is AWS’s DNS service designed for high availability and
scalability. Others serve different purposes like CDN or DDoS protection.



6. Which service provides a fully managed NoSQL database?
A. Amazon RDS
B. Amazon DynamoDB
C. Amazon Aurora
D. Amazon Redshift
Correct Answer: B
Rationale: DynamoDB is a fully managed NoSQL database. RDS and Aurora are
relational, and Redshift is for data warehousing.



7. A company wants to reduce latency for global users accessing static content. Which
service should they use?
A. Amazon EC2
B. AWS Lambda
C. Amazon CloudFront
D. Amazon S3 Glacier
Correct Answer: C
Rationale: CloudFront is a CDN that caches content globally to reduce latency.
Others are not designed for content distribution.



8. Which feature ensures that EC2 instances automatically scale based on demand?
A. Auto Scaling Groups
B. Elastic Load Balancer
C. Amazon CloudWatch
D. AWS Config
Correct Answer: A

, Rationale: Auto Scaling Groups automatically adjust capacity. ELB distributes
traffic, CloudWatch monitors, and Config tracks compliance.



9. Which AWS service is best for running containerized applications?
A. AWS Lambda
B. Amazon ECS
C. Amazon RDS
D. Amazon S3
Correct Answer: B
Rationale: Amazon ECS is designed for container orchestration. Lambda is
serverless, RDS is database, and S3 is storage.



10. What is the main benefit of using AWS Availability Zones?
A. Cost reduction
B. Improved security
C. High availability and fault tolerance
D. Faster deployment
Correct Answer: C
Rationale: Availability Zones provide isolation and redundancy, improving resilience.
Other options are secondary benefits or unrelated.



11. Which service provides object storage?
A. Amazon EBS
B. Amazon S3
C. Amazon EFS
D. AWS Storage Gateway
Correct Answer: B
Rationale: S3 is object storage. EBS is block storage, EFS is file storage, and Storage
Gateway is hybrid.



12. Which service is used for monitoring AWS resources?
A. AWS CloudTrail
B. Amazon CloudWatch
C. AWS Config
D. AWS Trusted Advisor
Correct Answer: B
Rationale: CloudWatch provides monitoring and metrics. CloudTrail logs API calls,
Config tracks changes, Trusted Advisor gives recommendations.

, 13. A company needs to securely connect its on-premises data center to AWS. Which
service should be used?
A. AWS VPN
B. Amazon CloudFront
C. AWS Lambda
D. Amazon S3
Correct Answer: A
Rationale: AWS VPN provides secure connectivity. Others are unrelated to network
connectivity.



14. Which service provides block-level storage for EC2 instances?
A. Amazon S3
B. Amazon EBS
C. Amazon EFS
D. AWS Snowball
Correct Answer: B
Rationale: EBS provides block storage. S3 is object storage, EFS is file storage,
Snowball is data transfer.



15. What is the purpose of AWS IAM?
A. Manage compute resources
B. Control user access and permissions
C. Monitor applications
D. Store data
Correct Answer: B
Rationale: IAM manages identities and permissions. Others are unrelated functions.



16. Which service helps protect against DDoS attacks?
A. AWS Shield
B. AWS WAF
C. Amazon GuardDuty
D. AWS Config
Correct Answer: A
Rationale: AWS Shield provides DDoS protection. WAF filters web traffic,
GuardDuty detects threats, Config monitors compliance.



17. Which service allows querying data directly from S3 using SQL?
A. Amazon Athena
B. Amazon Redshift
C. AWS Glue
D. Amazon RDS
Correct Answer: A