AWS Certified Solutions Architect
Associate SAA-C03 2026 – Full Version
Exam with 360 Questions, Answers &
Rationales
Question 1
A company needs to design a highly available architecture across multiple
Availability Zones. Which solution should they implement?
A. Deploy EC2 instances in one AZ with Auto Scaling
B. Use a single RDS instance
C. Deploy resources across multiple AZs with a load balancer
D. Use S3 only
Answer: C. Deploy resources across multiple AZs with a load balancer
Rationale:
Distributing resources across multiple AZs ensures fault tolerance. A load balancer
routes traffic only to healthy instances, improving availability.
Question 2
Which AWS service provides temporary credentials for applications running on
EC2?
A. IAM Users
B. IAM Roles
C. Security Groups
D. NACLs
Answer: B. IAM Roles
Rationale:
IAM Roles provide temporary security credentials for applications, avoiding
hardcoding credentials.
,Question 3
A company wants to store frequently accessed data with microsecond latency.
Which service should they choose?
A. S3
B. DynamoDB
C. ElastiCache
D. Glacier
Answer: C. ElastiCache
Rationale:
ElastiCache provides in-memory caching, delivering extremely low latency.
Question 4
Which service is best for storing large unstructured data?
A. EBS
B. S3
C. RDS
D. DynamoDB
Answer: B. S3
Rationale:
S3 is ideal for storing large volumes of unstructured data such as images, videos,
and backups.
Question 5
A company wants to automatically scale EC2 instances based on CPU usage.
Which service should they use?
A. CloudTrail
B. Auto Scaling
C. Trusted Advisor
D. IAM
,Answer: B. Auto Scaling
Rationale:
Auto Scaling adjusts EC2 capacity automatically based on defined metrics like
CPU utilization.
Question 6
Which AWS service provides a fully managed relational database?
A. DynamoDB
B. RDS
C. Redshift
D. S3
Answer: B. RDS
Rationale:
RDS manages backups, patching, and scaling for relational databases.
Question 7
Which service enables secure, private communication between VPCs?
A. Internet Gateway
B. VPC Peering
C. NAT Gateway
D. CloudFront
Answer: B. VPC Peering
Rationale:
VPC Peering connects VPCs privately using AWS backbone network.
Question 8
Which service allows you to define infrastructure using code templates?
A. CloudFormation
B. OpsWorks
, C. CodeDeploy
D. CloudTrail
Answer: A. CloudFormation
Rationale:
CloudFormation uses templates to provision AWS infrastructure.
Question 9
Which service is best for real-time notifications?
A. SQS
B. SNS
C. SES
D. Kinesis
Answer: B. SNS
Rationale:
SNS enables pub/sub messaging for real-time notifications.
Question 10
Which service is best for decoupling applications?
A. SNS
B. SQS
C. Lambda
D. API Gateway
Answer: B. SQS
Rationale:
SQS decouples application components via queues.
Question 11
Which storage type is ephemeral?
Associate SAA-C03 2026 – Full Version
Exam with 360 Questions, Answers &
Rationales
Question 1
A company needs to design a highly available architecture across multiple
Availability Zones. Which solution should they implement?
A. Deploy EC2 instances in one AZ with Auto Scaling
B. Use a single RDS instance
C. Deploy resources across multiple AZs with a load balancer
D. Use S3 only
Answer: C. Deploy resources across multiple AZs with a load balancer
Rationale:
Distributing resources across multiple AZs ensures fault tolerance. A load balancer
routes traffic only to healthy instances, improving availability.
Question 2
Which AWS service provides temporary credentials for applications running on
EC2?
A. IAM Users
B. IAM Roles
C. Security Groups
D. NACLs
Answer: B. IAM Roles
Rationale:
IAM Roles provide temporary security credentials for applications, avoiding
hardcoding credentials.
,Question 3
A company wants to store frequently accessed data with microsecond latency.
Which service should they choose?
A. S3
B. DynamoDB
C. ElastiCache
D. Glacier
Answer: C. ElastiCache
Rationale:
ElastiCache provides in-memory caching, delivering extremely low latency.
Question 4
Which service is best for storing large unstructured data?
A. EBS
B. S3
C. RDS
D. DynamoDB
Answer: B. S3
Rationale:
S3 is ideal for storing large volumes of unstructured data such as images, videos,
and backups.
Question 5
A company wants to automatically scale EC2 instances based on CPU usage.
Which service should they use?
A. CloudTrail
B. Auto Scaling
C. Trusted Advisor
D. IAM
,Answer: B. Auto Scaling
Rationale:
Auto Scaling adjusts EC2 capacity automatically based on defined metrics like
CPU utilization.
Question 6
Which AWS service provides a fully managed relational database?
A. DynamoDB
B. RDS
C. Redshift
D. S3
Answer: B. RDS
Rationale:
RDS manages backups, patching, and scaling for relational databases.
Question 7
Which service enables secure, private communication between VPCs?
A. Internet Gateway
B. VPC Peering
C. NAT Gateway
D. CloudFront
Answer: B. VPC Peering
Rationale:
VPC Peering connects VPCs privately using AWS backbone network.
Question 8
Which service allows you to define infrastructure using code templates?
A. CloudFormation
B. OpsWorks
, C. CodeDeploy
D. CloudTrail
Answer: A. CloudFormation
Rationale:
CloudFormation uses templates to provision AWS infrastructure.
Question 9
Which service is best for real-time notifications?
A. SQS
B. SNS
C. SES
D. Kinesis
Answer: B. SNS
Rationale:
SNS enables pub/sub messaging for real-time notifications.
Question 10
Which service is best for decoupling applications?
A. SNS
B. SQS
C. Lambda
D. API Gateway
Answer: B. SQS
Rationale:
SQS decouples application components via queues.
Question 11
Which storage type is ephemeral?
