The DevOps team at an e-commerce company is trying to debug performance issues for its
serverless application built using a microservices architecture. As a Cloud Practitioner, which
AWS service would you recommend addressing this use-case?
A) AWS Trusted Advisor
B) AWS CloudFormation
C) Amazon Pinpoint
D) AWS X-Ray correct answers D - You can use AWS X-Ray to analyze and debug serverless
and distributed applications such as those built using a microservices architecture. With X-Ray,
you can understand how your application and its underlying services are performing to identify
and troubleshoot the root cause of performance issues and errors.
What is the primary benefit of deploying an RDS database in a Read Replica configuration?
A) Read Replica improves database scalability
B) Read Replica protects the database from a regional failure
C) Read Replica enhances database availability
D) Read Replica reduces database usage costs correct answers A - Amazon Relational Database
Service (Amazon RDS) makes it easy to set up, operate, and scale a relational database in the
cloud. Read Replicas allow you to create read-only copies that are synchronized with your
master database. Read Replicas are used for improved read performance. You can also place your
read replica in a different AWS Region closer to your users for better performance. Read
Replicas are an example of horizontal scaling of resources.
Which of the following are correct statements regarding the AWS Shared Responsibility Model?
(Select two)
A) AWS is responsible for training AWS and customer employees on AWS products and services
B) For a service like Amazon EC2, that falls under Infrastructure as a Service, AWS is
responsible for maintaining guest operating system
C) Configuration Management is the responsibility of the customer
D) For abstracted services like Amazon S3, AWS operates the infrastructure layer, the operating
system, and platforms
,E) AWS is responsible for Security "of" the Cloud correct answers D & E - Security and
Compliance is a shared responsibility between AWS and the customer. This shared model can
help relieve the customer's operational burden as AWS operates, manages and controls the
components from the host operating system and virtualization layer down to the physical security
of the facilities in which the service operates.
AWS is responsible for Security "of" the Cloud - AWS is responsible for protecting the
infrastructure that runs all of the services offered in the AWS Cloud. This infrastructure is
composed of the hardware, software, networking, and facilities that run AWS Cloud services.
"For abstracted services like Amazon S3, AWS operates the infrastructure layer, the operating
system, and platforms" - For abstracted services, such as Amazon S3 and Amazon DynamoDB,
AWS operates the infrastructure layer, the operating system, and platforms, and customers access
the endpoints to store and retrieve data.
An AWS user is trying to launch an EC2 instance in a given region. What is the region-specific
constraint that the Amazon Machine Image (AMI) must meet so that it can be used for this EC2
instance?
A) You should use an AMI from the same region, as it improves the performance of the EC2
instance
B) You can use an AMI from a different region, but it degrades the performance of the EC2
instance
C) You must use an AMI from the same region as that of the EC2 instance. The region of the
AMI has no bearing on the performance of the EC2 instance
D) An AMI is a global entity, so the region is not applicable correct answers C - An Amazon
Machine Image (AMI) provides the information required to launch an instance. You must specify
an AMI when you launch an instance. You can launch multiple instances from a single AMI
when you need multiple instances with the same configuration.
The AMI must be in the same region as that of the EC2 instance to be launched. If the AMI
exists in a different region, you can copy that AMI to the region where you want to launch the
EC2 instance. The region of AMI has no bearing on the performance of the EC2 instance.
A corporation would like to have a central user portal to log in to third-party business
applications as well as accounts managed under AWS Organizations. As a Cloud Practitioner,
which AWS service would you use for this task?
A) AWS Single Sign-On (SSO)
, B) AWS Command Line Interface (CLI)
C) AWS Identity and Access Management (IAM)
D) AWS Cognito correct answers A - AWS SSO is an AWS service that enables you to makes it
easy to centrally manage access to multiple AWS accounts and business applications and provide
users with single sign-on access to all their assigned accounts and applications from one place.
With AWS SSO, you can easily manage SSO access and user permissions to all of your accounts
in AWS Organizations centrally. AWS SSO allows you to create and manage user identities in
AWS SSO's identity store, or easily connect to your existing identity source including Microsoft
Active Directory, Azure Active Directory (Azure AD), and Okta Universal Directory.
You can use AWS SSO to quickly and easily assign and manage your employees' access to
multiple AWS accounts, SAML-enabled cloud applications (such as Salesforce, Office 365, and
Box), and custom-built in-house applications, all from a central place.
A financial services company wants to migrate from its on-premises data center to AWS Cloud.
As a Cloud Practitioner, which AWS service would you recommend so that the company can
compare the cost of running their IT infrastructure on-premises vs AWS Cloud?
A) AWS Cost Explorer
B) AWS Trusted Advisor
C) AWS Budgets
D) AWS Pricing Calculator correct answers D - AWS Pricing Calculator lets you explore AWS
services and create an estimate for the cost of your use cases on AWS. You can model your
solutions before building them, explore the price points and calculations behind your estimate,
and find the available instance types and contract terms that meet your needs. This enables you to
make informed decisions about using AWS. You can plan your AWS costs and usage or price out
setting up a new set of instances and services.
Which AWS Route 53 routing policy would you use to route traffic to multiple resources and
also choose how much traffic is routed to each resource?
A) Latency routing policy
B) Failover routing policy
C) Simple routing policy