AWS Certified Cloud Practitioner Cloud Technology & Services
Certification Exam | Comprehensive QUESTION Bank & Expert
Explanations 206/2027
QUESTION 1
Which AWS compute service allows you to run virtual servers in the
cloud, known as Amazon EC2, with full administrative control over the
guest operating system?
• A. AWS Lambda
• B. Amazon EC2 (Elastic Compute Cloud)
• C. Amazon ECS (Elastic Container Service)
• D. AWS Elastic Beanstalk
Correct Answer: B. Amazon EC2 (Elastic Compute Cloud)
Detailed Rationale: Amazon EC2 provides resizable compute capacity in
the cloud as virtual servers, giving users complete root access and
control over their virtual machines and installed software stack.
QUESTION 2
Which Amazon S3 storage class is optimized for data with unknown or
changing access patterns, automatically moving data between frequent
and infrequent access tiers to optimize costs?
• A. S3 Standard
• B. S3 Standard-Infrequent Access (Standard-IA)
• C. S3 Intelligent-Tiering
, • D. S3 Glacier Deep Archive
Correct Answer: C. S3 Intelligent-Tiering
Detailed Rationale: S3 Intelligent-Tiering monitors access patterns and
automatically moves objects between frequent, infrequent, and archive
access tiers without operational overhead when access habits shift.
QUESTION 3
Which AWS service is a fully managed relational database service that
supports popular database engines such as MySQL, PostgreSQL, Oracle,
and SQL Server?
• A. Amazon DynamoDB
• B. Amazon RDS (Relational Database Service)
• C. Amazon Redshift
• D. Amazon ElastiCache
Correct Answer: B. Amazon RDS (Relational Database Service)
Detailed Rationale: Amazon RDS simplifies the setup, operation, and
scaling of relational databases in the cloud by automating routine
administrative tasks like backups, patching, and hardware provisioning.
QUESTION 4
What is the primary characteristic of AWS Lambda that makes it distinct
from traditional server hosting?
• A. It requires manual provisioning and sizing of Linux kernel
updates.
, • B. It is a serverless, event-driven compute service that runs code
in response to triggers and scales automatically without managing
servers.
• C. It charges a fixed monthly fee regardless of how many requests
are executed.
• D. It only supports stateful long-running database queries.
Correct Answer: B. It is a serverless, event-driven compute service that
runs code in response to triggers and scales automatically without
managing servers.
Detailed Rationale: AWS Lambda executes your code only when
triggered, scaling seamlessly from zero to thousands of concurrent
requests while billing strictly for the compute time consumed.
QUESTION 5
What is the primary purpose of an Elastic Load Balancer (ELB) in an AWS
architecture?
• A. To distribute incoming application or web traffic across multiple
targets, such as EC2 instances, across multiple Availability Zones.
• B. To cache frequently queried database results to reduce backend
latency.
• C. To automatically back up block storage volumes to Amazon S3.
• D. To route external DNS domain requests to internal IP addresses.
Correct Answer: A. To distribute incoming application or web traffic
across multiple targets, such as EC2 instances, across multiple
Availability Zones.
, Detailed Rationale: Elastic Load Balancing increases fault tolerance and
availability by automatically spreading incoming traffic across healthy
backend targets, routing traffic away from failing instances.
QUESTION 6
How does Amazon EC2 Auto Scaling help maintain application
availability and performance?
• A. By automatically adding or removing EC2 instances based on
defined demand patterns, traffic spikes, or CPU utilization metrics.
• B. By encrypting all data stored on attached block storage volumes
at rest.
• C. By routing global client web requests to the nearest edge
location.
• D. By scanning container images for known software
vulnerabilities.
Correct Answer: A. By automatically adding or removing EC2 instances
based on defined demand patterns, traffic spikes, or CPU utilization
metrics.
Detailed Rationale: EC2 Auto Scaling ensures you have the correct
number of EC2 instances running to handle the load of your application,
scaling out during high traffic and scaling in to save costs during low
traffic.
QUESTION 7
What is the primary function of an Amazon Virtual Private Cloud (VPC)?
Certification Exam | Comprehensive QUESTION Bank & Expert
Explanations 206/2027
QUESTION 1
Which AWS compute service allows you to run virtual servers in the
cloud, known as Amazon EC2, with full administrative control over the
guest operating system?
• A. AWS Lambda
• B. Amazon EC2 (Elastic Compute Cloud)
• C. Amazon ECS (Elastic Container Service)
• D. AWS Elastic Beanstalk
Correct Answer: B. Amazon EC2 (Elastic Compute Cloud)
Detailed Rationale: Amazon EC2 provides resizable compute capacity in
the cloud as virtual servers, giving users complete root access and
control over their virtual machines and installed software stack.
QUESTION 2
Which Amazon S3 storage class is optimized for data with unknown or
changing access patterns, automatically moving data between frequent
and infrequent access tiers to optimize costs?
• A. S3 Standard
• B. S3 Standard-Infrequent Access (Standard-IA)
• C. S3 Intelligent-Tiering
, • D. S3 Glacier Deep Archive
Correct Answer: C. S3 Intelligent-Tiering
Detailed Rationale: S3 Intelligent-Tiering monitors access patterns and
automatically moves objects between frequent, infrequent, and archive
access tiers without operational overhead when access habits shift.
QUESTION 3
Which AWS service is a fully managed relational database service that
supports popular database engines such as MySQL, PostgreSQL, Oracle,
and SQL Server?
• A. Amazon DynamoDB
• B. Amazon RDS (Relational Database Service)
• C. Amazon Redshift
• D. Amazon ElastiCache
Correct Answer: B. Amazon RDS (Relational Database Service)
Detailed Rationale: Amazon RDS simplifies the setup, operation, and
scaling of relational databases in the cloud by automating routine
administrative tasks like backups, patching, and hardware provisioning.
QUESTION 4
What is the primary characteristic of AWS Lambda that makes it distinct
from traditional server hosting?
• A. It requires manual provisioning and sizing of Linux kernel
updates.
, • B. It is a serverless, event-driven compute service that runs code
in response to triggers and scales automatically without managing
servers.
• C. It charges a fixed monthly fee regardless of how many requests
are executed.
• D. It only supports stateful long-running database queries.
Correct Answer: B. It is a serverless, event-driven compute service that
runs code in response to triggers and scales automatically without
managing servers.
Detailed Rationale: AWS Lambda executes your code only when
triggered, scaling seamlessly from zero to thousands of concurrent
requests while billing strictly for the compute time consumed.
QUESTION 5
What is the primary purpose of an Elastic Load Balancer (ELB) in an AWS
architecture?
• A. To distribute incoming application or web traffic across multiple
targets, such as EC2 instances, across multiple Availability Zones.
• B. To cache frequently queried database results to reduce backend
latency.
• C. To automatically back up block storage volumes to Amazon S3.
• D. To route external DNS domain requests to internal IP addresses.
Correct Answer: A. To distribute incoming application or web traffic
across multiple targets, such as EC2 instances, across multiple
Availability Zones.
, Detailed Rationale: Elastic Load Balancing increases fault tolerance and
availability by automatically spreading incoming traffic across healthy
backend targets, routing traffic away from failing instances.
QUESTION 6
How does Amazon EC2 Auto Scaling help maintain application
availability and performance?
• A. By automatically adding or removing EC2 instances based on
defined demand patterns, traffic spikes, or CPU utilization metrics.
• B. By encrypting all data stored on attached block storage volumes
at rest.
• C. By routing global client web requests to the nearest edge
location.
• D. By scanning container images for known software
vulnerabilities.
Correct Answer: A. By automatically adding or removing EC2 instances
based on defined demand patterns, traffic spikes, or CPU utilization
metrics.
Detailed Rationale: EC2 Auto Scaling ensures you have the correct
number of EC2 instances running to handle the load of your application,
scaling out during high traffic and scaling in to save costs during low
traffic.
QUESTION 7
What is the primary function of an Amazon Virtual Private Cloud (VPC)?
