AWS Certified Developer – Associate Practice Exam (2026 2027Edition)
Questions and Answers with Detailed Explanations
Question 1
A developer wants to store application configuration values such as
database endpoints and feature flags securely. Which AWS service is the
BEST choice?
A. Amazon S3
B. AWS Systems Manager Parameter Store
C. Amazon EC2
D. Amazon CloudFront
Correct Answer: B. AWS Systems Manager Parameter Store
Explanation:
AWS Systems Manager Parameter Store securely stores configuration
data and secrets. It supports encryption using AWS KMS and allows
applications to retrieve parameters at runtime.
Question 2
Which AWS service allows developers to run code without provisioning
or managing servers?
A. Amazon EC2
B. AWS Lambda
C. Amazon ECS
D. AWS Elastic Beanstalk
Correct Answer: B. AWS Lambda
,Explanation:
AWS Lambda is a serverless compute service that automatically
manages infrastructure while executing code in response to events.
Question 3
A developer needs to store objects such as images and videos with
virtually unlimited scalability. Which AWS service should be used?
A. Amazon RDS
B. Amazon S3
C. Amazon DynamoDB
D. Amazon ElastiCache
Correct Answer: B. Amazon S3
Explanation:
Amazon S3 provides highly durable, scalable object storage suitable for
static assets, backups, and media files.
Question 4
Which AWS service is a fully managed NoSQL database?
A. Amazon Aurora
B. Amazon RDS
C. Amazon DynamoDB
D. Amazon Redshift
Correct Answer: C. Amazon DynamoDB
,Explanation:
Amazon DynamoDB is a serverless NoSQL database offering single-digit
millisecond performance and automatic scaling.
Question 5
A developer wants to expose RESTful APIs that invoke Lambda
functions. Which AWS service should be used?
A. Amazon Route 53
B. Amazon API Gateway
C. AWS CloudFormation
D. Amazon SNS
Correct Answer: B. Amazon API Gateway
Explanation:
Amazon API Gateway creates, publishes, secures, monitors, and
manages REST and HTTP APIs that integrate directly with AWS Lambda.
Question 6
Which AWS service is commonly used to send messages between
decoupled application components?
A. Amazon SQS
B. Amazon EFS
C. AWS IAM
D. Amazon CloudFront
Correct Answer: A. Amazon SQS
, Explanation:
Amazon Simple Queue Service (SQS) enables reliable asynchronous
communication between distributed application components.
Question 7
A developer needs to trigger an email notification whenever a file is
uploaded to an S3 bucket. Which combination of AWS services is MOST
appropriate?
A. Amazon S3 + Amazon SNS
B. Amazon EC2 + Amazon RDS
C. AWS CloudFormation + IAM
D. AWS Organizations + Route 53
Correct Answer: A. Amazon S3 + Amazon SNS
Explanation:
S3 event notifications can publish events to Amazon SNS, which can
then send email notifications to subscribers.
Question 8
Which AWS service helps developers manage application secrets such
as database passwords?
A. AWS Secrets Manager
B. Amazon CloudWatch
C. AWS Config
D. Amazon Inspector
Questions and Answers with Detailed Explanations
Question 1
A developer wants to store application configuration values such as
database endpoints and feature flags securely. Which AWS service is the
BEST choice?
A. Amazon S3
B. AWS Systems Manager Parameter Store
C. Amazon EC2
D. Amazon CloudFront
Correct Answer: B. AWS Systems Manager Parameter Store
Explanation:
AWS Systems Manager Parameter Store securely stores configuration
data and secrets. It supports encryption using AWS KMS and allows
applications to retrieve parameters at runtime.
Question 2
Which AWS service allows developers to run code without provisioning
or managing servers?
A. Amazon EC2
B. AWS Lambda
C. Amazon ECS
D. AWS Elastic Beanstalk
Correct Answer: B. AWS Lambda
,Explanation:
AWS Lambda is a serverless compute service that automatically
manages infrastructure while executing code in response to events.
Question 3
A developer needs to store objects such as images and videos with
virtually unlimited scalability. Which AWS service should be used?
A. Amazon RDS
B. Amazon S3
C. Amazon DynamoDB
D. Amazon ElastiCache
Correct Answer: B. Amazon S3
Explanation:
Amazon S3 provides highly durable, scalable object storage suitable for
static assets, backups, and media files.
Question 4
Which AWS service is a fully managed NoSQL database?
A. Amazon Aurora
B. Amazon RDS
C. Amazon DynamoDB
D. Amazon Redshift
Correct Answer: C. Amazon DynamoDB
,Explanation:
Amazon DynamoDB is a serverless NoSQL database offering single-digit
millisecond performance and automatic scaling.
Question 5
A developer wants to expose RESTful APIs that invoke Lambda
functions. Which AWS service should be used?
A. Amazon Route 53
B. Amazon API Gateway
C. AWS CloudFormation
D. Amazon SNS
Correct Answer: B. Amazon API Gateway
Explanation:
Amazon API Gateway creates, publishes, secures, monitors, and
manages REST and HTTP APIs that integrate directly with AWS Lambda.
Question 6
Which AWS service is commonly used to send messages between
decoupled application components?
A. Amazon SQS
B. Amazon EFS
C. AWS IAM
D. Amazon CloudFront
Correct Answer: A. Amazon SQS
, Explanation:
Amazon Simple Queue Service (SQS) enables reliable asynchronous
communication between distributed application components.
Question 7
A developer needs to trigger an email notification whenever a file is
uploaded to an S3 bucket. Which combination of AWS services is MOST
appropriate?
A. Amazon S3 + Amazon SNS
B. Amazon EC2 + Amazon RDS
C. AWS CloudFormation + IAM
D. AWS Organizations + Route 53
Correct Answer: A. Amazon S3 + Amazon SNS
Explanation:
S3 event notifications can publish events to Amazon SNS, which can
then send email notifications to subscribers.
Question 8
Which AWS service helps developers manage application secrets such
as database passwords?
A. AWS Secrets Manager
B. Amazon CloudWatch
C. AWS Config
D. Amazon Inspector
