AWS Cloud Practitioner CLF-C02
Scenario-Based Practice Test 2026–2027
| Realistic Situational Questions,
Answers & Detailed Rationales
Question 1
A company hosts a web application on Amazon EC2. Traffic varies significantly
throughout the day, and the company wants the application to automatically add
or remove EC2 instances based on demand. Which AWS capability best addresses
this requirement?
A. AWS CloudTrail
B. Amazon EC2 Auto Scaling
C. AWS Budgets
D. AWS Artifact
Answer: B. Amazon EC2 Auto Scaling
Rationale: EC2 Auto Scaling automatically adjusts the number of EC2 instances
based on demand or configured scaling policies. This improves availability
during traffic increases and reduces unnecessary capacity during periods of low
demand.
,Question 2
A company wants to deploy its application in multiple geographically separated
locations to reduce the impact of a regional outage. Which AWS concept should it
use?
A. Availability Zones within one Region only
B. Multiple AWS Regions
C. Edge locations only
D. Dedicated Hosts
Answer: B. Multiple AWS Regions
Rationale: Deploying across multiple AWS Regions provides geographic
separation and can improve resilience against a large-scale regional failure.
Availability Zones provide isolation within a Region but do not protect against
an entire Region becoming unavailable.
Question 3
A startup needs a database for a new application but does not want to provision
database servers, install database software, or manage operating-system patches.
Which AWS service is most appropriate?
A. Amazon RDS
B. Amazon EC2
C. Amazon EBS
D. Amazon VPC
Answer: A. Amazon RDS
Rationale: Amazon RDS is a managed relational database service. AWS handles
many infrastructure management tasks, including database provisioning,
certain maintenance activities, backups, and patching options.
,Question 4
An organization wants to store millions of images and videos with high durability
and access them over the internet. Which service is most appropriate?
A. Amazon S3
B. Amazon EC2
C. Amazon EFS
D. Amazon Route 53
Answer: A. Amazon S3
Rationale: Amazon S3 is an object storage service designed for highly durable
storage of objects such as images, videos, documents, and backups.
Question 5
A company wants to ensure that an application can continue operating if one
Availability Zone experiences a failure. Which architecture is most appropriate?
A. Deploy all resources in one Availability Zone
B. Deploy resources across multiple Availability Zones
C. Deploy only to an edge location
D. Use a single EC2 instance with a larger instance type
Answer: B. Deploy resources across multiple Availability Zones
Rationale: Multiple Availability Zones provide fault isolation within an AWS
Region. Deploying redundant application components across AZs can allow the
application to continue operating when one AZ becomes unavailable.
Question 6
, A developer needs to execute code whenever an object is uploaded to an Amazon
S3 bucket without maintaining servers. Which service is most appropriate?
A. Amazon EC2
B. AWS Lambda
C. Amazon Lightsail
D. AWS Direct Connect
Answer: B. AWS Lambda
Rationale: AWS Lambda is a serverless compute service that executes code in
response to events without requiring customers to provision or manage servers.
S3 can invoke Lambda in response to supported events.
Question 7
A company wants a managed service that distributes incoming application traffic
across multiple targets. Which service should it consider?
A. Elastic Load Balancing
B. AWS Organizations
C. AWS Artifact
D. AWS Budgets
Answer: A. Elastic Load Balancing
Rationale: Elastic Load Balancing distributes incoming traffic across registered
targets such as EC2 instances, containers, and IP addresses, helping improve
availability and scalability.
Question 8
An organization wants to monitor CPU utilization and create alarms when EC2
CPU usage exceeds a threshold. Which service should be used?
Scenario-Based Practice Test 2026–2027
| Realistic Situational Questions,
Answers & Detailed Rationales
Question 1
A company hosts a web application on Amazon EC2. Traffic varies significantly
throughout the day, and the company wants the application to automatically add
or remove EC2 instances based on demand. Which AWS capability best addresses
this requirement?
A. AWS CloudTrail
B. Amazon EC2 Auto Scaling
C. AWS Budgets
D. AWS Artifact
Answer: B. Amazon EC2 Auto Scaling
Rationale: EC2 Auto Scaling automatically adjusts the number of EC2 instances
based on demand or configured scaling policies. This improves availability
during traffic increases and reduces unnecessary capacity during periods of low
demand.
,Question 2
A company wants to deploy its application in multiple geographically separated
locations to reduce the impact of a regional outage. Which AWS concept should it
use?
A. Availability Zones within one Region only
B. Multiple AWS Regions
C. Edge locations only
D. Dedicated Hosts
Answer: B. Multiple AWS Regions
Rationale: Deploying across multiple AWS Regions provides geographic
separation and can improve resilience against a large-scale regional failure.
Availability Zones provide isolation within a Region but do not protect against
an entire Region becoming unavailable.
Question 3
A startup needs a database for a new application but does not want to provision
database servers, install database software, or manage operating-system patches.
Which AWS service is most appropriate?
A. Amazon RDS
B. Amazon EC2
C. Amazon EBS
D. Amazon VPC
Answer: A. Amazon RDS
Rationale: Amazon RDS is a managed relational database service. AWS handles
many infrastructure management tasks, including database provisioning,
certain maintenance activities, backups, and patching options.
,Question 4
An organization wants to store millions of images and videos with high durability
and access them over the internet. Which service is most appropriate?
A. Amazon S3
B. Amazon EC2
C. Amazon EFS
D. Amazon Route 53
Answer: A. Amazon S3
Rationale: Amazon S3 is an object storage service designed for highly durable
storage of objects such as images, videos, documents, and backups.
Question 5
A company wants to ensure that an application can continue operating if one
Availability Zone experiences a failure. Which architecture is most appropriate?
A. Deploy all resources in one Availability Zone
B. Deploy resources across multiple Availability Zones
C. Deploy only to an edge location
D. Use a single EC2 instance with a larger instance type
Answer: B. Deploy resources across multiple Availability Zones
Rationale: Multiple Availability Zones provide fault isolation within an AWS
Region. Deploying redundant application components across AZs can allow the
application to continue operating when one AZ becomes unavailable.
Question 6
, A developer needs to execute code whenever an object is uploaded to an Amazon
S3 bucket without maintaining servers. Which service is most appropriate?
A. Amazon EC2
B. AWS Lambda
C. Amazon Lightsail
D. AWS Direct Connect
Answer: B. AWS Lambda
Rationale: AWS Lambda is a serverless compute service that executes code in
response to events without requiring customers to provision or manage servers.
S3 can invoke Lambda in response to supported events.
Question 7
A company wants a managed service that distributes incoming application traffic
across multiple targets. Which service should it consider?
A. Elastic Load Balancing
B. AWS Organizations
C. AWS Artifact
D. AWS Budgets
Answer: A. Elastic Load Balancing
Rationale: Elastic Load Balancing distributes incoming traffic across registered
targets such as EC2 instances, containers, and IP addresses, helping improve
availability and scalability.
Question 8
An organization wants to monitor CPU utilization and create alarms when EC2
CPU usage exceeds a threshold. Which service should be used?
