Which database engine is compatible with Amazon RDS?
D
Explanation:
Amazon RDS supports six database engines: Amazon Aurora, MySQL, MariaDB, PostgreSQL, Oracle,
and SQL Server. Apache Cassandra, MongoDB, and Neo4j are not compatible with Amazon RDS.
Therefore, the correct answer is D. You can learn more about Amazon RDS and its supported
database engines
A company needs to run code in response to an event notification that occurs when objects are
uploaded to an Amazon S3 bucket.
Which AWS service will integrate directly with the event notification?
A
Explanation:
AWS Lambda is a service that lets you run code without provisioning or managing servers. You can
use Lambda to process event notifications from Amazon S3 when objects are uploaded or deleted.
Lambda integrates directly with the event notification and invokes your code automatically.
Therefore, the correct answer is A.
A company wants to centrally manage security policies and billing services within a multi-account
AWS environment. Which AWS service should the company use to meet these requirements?
B
Explanation:
AWS Organizations is a service that helps you centrally manage and govern your environment as you
grow and scale your AWS resources. You can use AWS Organizations to create groups of accounts and
apply policies to them. You can also use AWS Organizations to consolidate billing for multiple
accounts. Therefore, the correct answer is B. You can learn more about AWS Organizations and its
features .
What are the characteristics of Availability Zones? (Select TWO.)
A,D
Explanation:
Availability Zones are physically separate locations within an AWS Region that are engineered to be
isolated from failures. Each Availability Zone has independent power, cooling, and physical security,
and is connected to other Availability Zones in the same Region by a low-latency network. Therefore,
the correct answers are A and D. You can learn more about Availability Zones and their characteristics
Which AWS Well-Architected Framework concept represents a system's ability to remain functional
when the system encounters operational problems?
B
Explanation:
The AWS Well-Architected Framework is a set of best practices and guidelines for designing and
operating systems in the cloud. The framework consists of five pillars: operational excellence,
security, reliability, performance efficiency, and cost optimization. The concept of elasticity
represents a system’s ability to adapt to changes in demand by scaling resources up or down
automatically. Therefore, the correct answer is B. You can learn more about the AWS Well-
Architected Framework and its pillars
Which AWS service or tool does AWS Control Tower use to create resources?
A
Explanation:
AWS Control Tower uses AWS CloudFormation to create resources in your landing zone. AWS
CloudFormation is a service that helps you model and set up your AWS resources using templates.
AWS Control Tower supports creating AWS::ControlTower::EnabledControl resources in AWS
CloudFormation. Therefore, the correct answer is A. You can learn more about AWS Control Tower
and AWS CloudFormation
What are some advantages of using Amazon EC2 instances lo host applications in the AWS Cloud
instead of on premises? (Select TWO.)
B,D
Explanation:
Some of the advantages of using Amazon EC2 instances to host applications in the AWS Cloud instead
of on premises are:
EC2 integrates with Amazon VPC, AWS CloudTrail, and AWS Identity and Access Management (IAM).
Amazon VPC lets you provision a logically isolated section of the AWS Cloud where you can launch
AWS resources in a virtual network that you define. AWS CloudTrail enables governance, compliance,
operational auditing, and risk auditing of your AWS account. AWS IAM enables you to manage access
to AWS services and resources securely. Therefore, the correct answer is B. You can learn more about
Amazon EC2 and its integration with other AWS services
EC2 has a flexible, pay-as-you-go pricing model. You only pay for the compute capacity you use, and
you can scale up and down as needed. You can also choose from different pricing options, such as
On-Demand, Savings Plans, Reserved Instances, and Spot Instances, to optimize your costs.
Therefore, the correct answer is D. You can learn more about Amazon EC2 pricing
The other options are incorrect because:
EC2 does not include operating system patch management. You are responsible for managing and
maintaining your own operating systems on EC2 instances. You can use AWS Systems Manager to
automate common maintenance tasks, such as applying patches, or use Amazon EC2 Image Builder
to create and maintain secure images. Therefore, the incorrect answer is A.
EC2 does not have a 100% service level agreement (SLA). The EC2 SLA guarantees 99.99% availability
for each EC2 Region, not for each individual instance. Therefore, the incorrect answer is C.
EC2 does not have automatic storage cost optimization. You are responsible for choosing the right
storage option for your EC2 instances, such as Amazon Elastic Block Store (EBS) or Amazon Elastic File
System (EFS), and monitoring and optimizing your storage costs. You can use AWS Cost Explorer or
AWS Trusted Advisor to analyze and reduce your storage spending. Therefore, the incorrect answer is
E.
Which option is an advantage of AWS Cloud computing that minimizes variable costs?
B
Explanation:
One of the advantages of AWS Cloud computing is that it minimizes variable costs by leveraging
economies of scale. This means that AWS can achieve lower costs per unit of computing resources by
spreading the fixed costs of building and maintaining data centers over a large number of customers.
As a result, AWS can offer lower and more predictable prices to its customers, who only pay for the
resources they consume. Therefore, the correct answer is B. You can learn more about AWS pricing
and economies of scale
Which pillar of the AWS Well-Architected Framework focuses on the ability to run workloads
effectively, gain insight into operations, and continuously improve supporting processes and
procedures?
C
Explanation:
The AWS Well-Architected Framework is a set of best practices and guidelines for designing and
operating systems in the cloud. The framework consists of five pillars: operational excellence,
security, reliability, performance efficiency, and cost optimization. The operational excellence pillar
focuses on the ability to run workloads effectively, gain insight into operations, and continuously
improve supporting processes and procedures. Therefore, the correct answer is C. You can learn
more about the AWS Well-Architected Framework and its pillars.
Which benefit is included with an AWS Enterprise Support plan?
B
Explanation:
AWS offers different support plans to meet the needs of different customers. The AWS Enterprise
Support plan is the highest level of support that provides customers with concierge-like service,
where the main focus is helping them achieve their outcomes and find success in the cloud. One of
the benefits of the AWS Enterprise Support plan is that customers get designated support from an
AWS technical account manager (TAM), who provides consultative architectural and operational
guidance based on their applications and use cases. Therefore, the correct answer is B. You can learn
more about AWS support plans and their benefits .
A company plans to migrate to AWS and wants to create cost estimates for its AWS use cases.
Which AWS service or tool can the company use to meet these requirements?
A
Explanation:
AWS Pricing Calculator is a web-based planning tool that customers can use to create estimates for
their AWS use cases. They can use it to model their solutions before building them, explore the AWS
service price points, and review the calculations behind their estimates. Therefore, the correct
answer is A. You can learn more about AWS Pricing Calculator and how it works.
A developer needs to build an application for a retail company. The application must provide real-
time product recommendations that are based on machine learning.
Which AWS service should the developer use to meet this requirement?
B
Explanation:
Amazon Personalize is a fully managed machine learning service that customers can use to generate
personalized recommendations for their users. It can also generate user segments based on the
users’ affinity for certain items or item metadata. Amazon Personalize uses the customers’ data to
train and deploy custom recommendation models that can be integrated into their applications.
Therefore, the correct answer is B. You can learn more about Amazon Personalize and its use case.
A company deploys its application on Amazon EC2 instances. The application occasionally
experiences sudden increases in demand. The company wants to ensure that its application can
respond to changes in demand at the lowest possible cost.
Which AWS service or tool will meet these requirements?
A
Explanation:
AWS Auto Scaling is the AWS service or tool that will meet the requirements of ensuring that the
application can respond to changes in demand at the lowest possible cost. AWS Auto Scaling allows
users to automatically adjust the number of Amazon EC2 instances based on the application’s
performance and availability needs. AWS Auto Scaling can also optimize costs by helping users select
the most cost-effective EC2 instances for their application1
A company wants to use a managed service to simplify the setup, operation, and scaling of its MySQL
database in the AWS Cloud.
Which AWS service will meet these requirements?
B
Explanation:
Amazon RDS is the AWS service that will meet the requirements of using a managed service to
simplify the setup, operation, and scaling of a MySQL database in the AWS Cloud. Amazon RDS is a
relational database service that supports MySQL and other popular database engines. Amazon RDS
handles routine database tasks such as provisioning, patching, backup, recovery, and scaling. Amazon
RDS also offers high availability, security, and compatibility features3
A company deploys its application to multiple AWS Regions and configures automatic failover
between those Regions.
Which cloud concept does this architecture represent?
B
Explanation:
Reliability is the cloud concept that this architecture represents. Reliability is the ability of a system
to recover from infrastructure or service disruptions, dynamically acquire computing resources to
meet demand, and mitigate disruptions such as misconfigurations or transient network
issues. Deploying an application to multiple AWS Regions and configuring automatic failoverbetween
those Regions enhances the reliability of the application by reducing the impact of regional failures
and increasing the availability of the application4