AWS Certified Cloud Practitioner CLF-
C02 Advanced Practice Test 2026–2027
| 200 Challenging Questions, Answers &
Detailed Rationales
1.
A company wants to deploy an application that automatically adds or removes
compute resources based on changes in demand. Which AWS Cloud benefit is
most directly demonstrated?
A. Fault isolation
B. Elasticity
C. Global reach
D. Economies of scale
Answer: B. Elasticity
Rationale: Elasticity is the ability to automatically provision and release
resources as workload demand changes. This allows the company to maintain
performance without permanently provisioning for peak demand.
,2.
A company wants to move its applications from an on-premises data center to
AWS without making significant architectural changes. Which migration strategy
is most appropriate?
A. Refactor
B. Replatform
C. Rehost
D. Repurchase
Answer: C. Rehost
Rationale: Rehosting, commonly called lift and shift, moves applications to AWS
with minimal changes. It is often appropriate when migration speed is a priority.
3.
Which AWS service provides object storage with high durability and supports
lifecycle policies for automatically transitioning objects between storage classes?
A. Amazon EBS
B. Amazon S3
C. Amazon EC2
D. Amazon RDS
Answer: B. Amazon S3
Rationale: Amazon S3 is an object storage service that provides lifecycle
management, multiple storage classes, versioning, and high durability.
4.
A workload requires block-level storage that can be attached to an Amazon EC2
instance. Which service should be used?
A. Amazon S3
B. Amazon EFS
,C. Amazon EBS
D. Amazon S3 Glacier
Answer: C. Amazon EBS
Rationale: Amazon Elastic Block Store provides persistent block storage volumes
designed primarily for use with EC2 instances.
5.
Which AWS service provides a managed relational database environment
supporting engines such as MySQL, PostgreSQL, and MariaDB?
A. Amazon DynamoDB
B. Amazon RDS
C. Amazon ElastiCache
D. Amazon Neptune
Answer: B. Amazon RDS
Rationale: Amazon Relational Database Service is a managed relational
database service supporting several database engines.
6.
A company needs a highly scalable NoSQL database with single-digit millisecond
performance. Which AWS service is most appropriate?
A. Amazon DynamoDB
B. Amazon Aurora
C. Amazon Redshift
D. Amazon RDS
Answer: A. Amazon DynamoDB
Rationale: DynamoDB is a fully managed NoSQL database designed for highly
scalable workloads and low-latency performance.
7.
, Which AWS service is designed specifically for serverless execution of code in
response to events?
A. Amazon EC2
B. AWS Lambda
C. Amazon ECS
D. AWS Batch
Answer: B. AWS Lambda
Rationale: AWS Lambda runs code without requiring customers to provision or
manage servers. Lambda functions can be triggered by numerous AWS services
and application events.
8.
A company wants to distribute static and dynamic web content globally with
reduced latency. Which AWS service is designed for this purpose?
A. Amazon Route 53
B. Amazon CloudFront
C. AWS Direct Connect
D. Amazon VPC
Answer: B. Amazon CloudFront
Rationale: CloudFront is AWS's content delivery network. It caches content at
edge locations closer to users, reducing latency and improving delivery
performance.
9.
Which AWS service provides managed DNS and domain-name routing?
A. Amazon Route 53
B. AWS Transit Gateway
C. Amazon CloudFront
D. AWS Global Accelerator
C02 Advanced Practice Test 2026–2027
| 200 Challenging Questions, Answers &
Detailed Rationales
1.
A company wants to deploy an application that automatically adds or removes
compute resources based on changes in demand. Which AWS Cloud benefit is
most directly demonstrated?
A. Fault isolation
B. Elasticity
C. Global reach
D. Economies of scale
Answer: B. Elasticity
Rationale: Elasticity is the ability to automatically provision and release
resources as workload demand changes. This allows the company to maintain
performance without permanently provisioning for peak demand.
,2.
A company wants to move its applications from an on-premises data center to
AWS without making significant architectural changes. Which migration strategy
is most appropriate?
A. Refactor
B. Replatform
C. Rehost
D. Repurchase
Answer: C. Rehost
Rationale: Rehosting, commonly called lift and shift, moves applications to AWS
with minimal changes. It is often appropriate when migration speed is a priority.
3.
Which AWS service provides object storage with high durability and supports
lifecycle policies for automatically transitioning objects between storage classes?
A. Amazon EBS
B. Amazon S3
C. Amazon EC2
D. Amazon RDS
Answer: B. Amazon S3
Rationale: Amazon S3 is an object storage service that provides lifecycle
management, multiple storage classes, versioning, and high durability.
4.
A workload requires block-level storage that can be attached to an Amazon EC2
instance. Which service should be used?
A. Amazon S3
B. Amazon EFS
,C. Amazon EBS
D. Amazon S3 Glacier
Answer: C. Amazon EBS
Rationale: Amazon Elastic Block Store provides persistent block storage volumes
designed primarily for use with EC2 instances.
5.
Which AWS service provides a managed relational database environment
supporting engines such as MySQL, PostgreSQL, and MariaDB?
A. Amazon DynamoDB
B. Amazon RDS
C. Amazon ElastiCache
D. Amazon Neptune
Answer: B. Amazon RDS
Rationale: Amazon Relational Database Service is a managed relational
database service supporting several database engines.
6.
A company needs a highly scalable NoSQL database with single-digit millisecond
performance. Which AWS service is most appropriate?
A. Amazon DynamoDB
B. Amazon Aurora
C. Amazon Redshift
D. Amazon RDS
Answer: A. Amazon DynamoDB
Rationale: DynamoDB is a fully managed NoSQL database designed for highly
scalable workloads and low-latency performance.
7.
, Which AWS service is designed specifically for serverless execution of code in
response to events?
A. Amazon EC2
B. AWS Lambda
C. Amazon ECS
D. AWS Batch
Answer: B. AWS Lambda
Rationale: AWS Lambda runs code without requiring customers to provision or
manage servers. Lambda functions can be triggered by numerous AWS services
and application events.
8.
A company wants to distribute static and dynamic web content globally with
reduced latency. Which AWS service is designed for this purpose?
A. Amazon Route 53
B. Amazon CloudFront
C. AWS Direct Connect
D. Amazon VPC
Answer: B. Amazon CloudFront
Rationale: CloudFront is AWS's content delivery network. It caches content at
edge locations closer to users, reducing latency and improving delivery
performance.
9.
Which AWS service provides managed DNS and domain-name routing?
A. Amazon Route 53
B. AWS Transit Gateway
C. Amazon CloudFront
D. AWS Global Accelerator
