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AWS Cloud Practioner > Cloud Computing > Flashcards

Cloud Computing Flashcards

1
Q

What are the problems solved by cloud Computing
FECHAS

A

Flexibility
Elasticity
Cost effectiveness
High availability
Agility
Scalability

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2
Q

What are the types of cloud computing

A

Iaas. Infrastructure as a service
Paas platform as a service
Saas. Software as a service

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3
Q

What is managed by AWS when using SAAS?

A

Everything including the application
Example: ELASTIC BEAN STALK

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4
Q

Cloud pricing model data transfer out of the cloud is free or paid?

A

Paid

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5
Q

Cloud pricing model data transfer in is free or paid

A

Free

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6
Q

What criteria when choosing region

A

Compliance
Proximity to users
Available services
Pricing

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7
Q

What is the minimum availability zones per region?

A

3

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8
Q

What is the maximum availability zones per region?

A

6

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9
Q

Define IAM credentials report

A

List all your accounts users, and the status of their credentials

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10
Q

Define IAM access advisor

A

Shows the service permissions granted to a user, and when those services were last accessed

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11
Q

What the cost savings % of EBS snapshot archive

A

75% cheaper

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12
Q

How long does it take to restore an EBS snapshot from archive

A

24 to 72 hours

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13
Q

What does EC2 image builder do?

A

Automates the creation, maintenance validation of EC2 AMI’s

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14
Q

What happens if you stop an EC two instance with instant store attached

A

They will lose their data. They are ephemeral.

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15
Q

With EFS what OS is supported

A

Linux only

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16
Q

EFS infrequent access what are the cost savings?

A

Up to 92% lower cost as compared to EFS standard

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17
Q

Describe predictive scaling in an auto scaling group

A

Uses machine learning to predict future traffic ahead of time

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18
Q

For lambda, how many calls are free?

A

1 million

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19
Q

What does AWS batch do?

A

Run computing jobs can launch EC2 instances
Provisions the right amount of CPU/MEM

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20
Q

batch jobs run as?

A

As docker images on ECS

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21
Q

What is Lightsale used for?

A

Simple applications for people with very little cloud experience

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22
Q

Why would you use AWS CDK, when creating cloud formation templates

A

When you want to write your template in a programming, language and need CDK to translate it

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23
Q

For elastic beanstalk, what are the three permissions needed to get

A

Web Tier
Worker Tier
Multi container,
Docker

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24
Q

What does it mean when you say AWS code deploy is a hybrid service

A

It works on EC2 instances and on premises servers

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25
Q

What is AWS code commit

A

Code repository alternative to GitHub integrates with all AWS services

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26
Q

What is AWS Codebuild?

A

Compile source code
run test
produces artifact

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27
Q

What is code pipeline?

A

Orchestrates steps to push code to deployment. Think CI/CD

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28
Q

What is artifact management?

A

Storing in retrieving of dependencies for software packages

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29
Q

What is AWS codeArtifact

A

Artifact management service. Stores and retrieves software dependencies.

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30
Q

What is CodeStar?

A

Unified UI Dashboard to create and manage CodeCommit,Codepipeline,codebuild,
Codedeploy,ElasticBeanstalk +

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31
Q

What is cloudNine?

A

Cloud IDE-replaces traditional IDE. Allows simultaneous collaboration amongst developers.

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32
Q

Of these services, which is hybrid
Cloud formation
Beanstalk
Code deploy.
Systems manager

A

Code deploy
Systems manager

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33
Q

CodeStar can be used to monitor and check the health of environment true or false

A

False.
Elastic beanstalk is used for health monitoring

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34
Q

Why have a global application

A

Decreased latency
Disaster recovery
Attack prevention

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35
Q

Does cloud trail enable encryption on logs files by default!

A

Yes

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36
Q

Cloud service models define

A

Iaas
Paas
Saas

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37
Q

What services for IAAS?

A

Networking
Storage
Servers
Virtualization

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38
Q

What services covered for PAAS?
NSSVOMR

A

Network
Storage
Servers
Virtualization
O/s
Middleware
Runtime

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39
Q

list AWS support plans

A

Basic
Developer
Business
Enterprise on Ramp
Enterprise

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40
Q

What AWS support plan gives you access to TAM

A

Enterprise On-Ramp!!
Tam = Technical Account Manager

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41
Q

For enterprise support plan what is the response time for a business critical system down?

A

15 minutes

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42
Q

What support plan will have a dedicated TAM

A

Enterprise

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43
Q

What are the seven “R” of cloud migration?

A

Retire.
Retain.
Replatform
Repurchase
Refactor
Relocate
Rehost

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44
Q

What are the 6 perspectives of AWS CAF
BPSGOP

A

Business
People
Governance
Platform
Security
Operations

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45
Q

What is the foundational capability under the operations perspective from AWS CAF?

A

Performance and capacity management

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46
Q

Why is DynamoDB said to have a flexible schema capability?

A

Supports key value pair and Document data models = schema-less

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47
Q

What resources are supported by Compute Optimizer?

A

EC2
EBS
EC2 Auto Scale
Lambda

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48
Q

What services are global in scope?

A

CloudFront
IAM

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49
Q

Why is S3 considered not global in scope?

A

Buckets still regional

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50
Q

Which Amazon Simple Storage Service (Amazon S3) storage class offers the lowest availability

A

One Zone-Infrequent Access

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51
Q

Whis is minimum storage charge for S3 standard and one zone

A

30 Days

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52
Q

Whis is minimum storage charge for S3 glacial and glacial flexible?

A

90 Days

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53
Q

What is first byte latency with S3 Glacial intant retrieval?

A

Milliseconds

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54
Q

What are budget types for AWS Budgets?

A

Cost
Reservation
Usage

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55
Q

Is Amazon EFS is a regional service

A

YES
EC2 instances can access files on an Amazon Elastic File System (Amazon EFS) file system across many Availability Zones (AZ), Regions and VPCs

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56
Q

Which AWS service can be used as an in-memory database with high-performance and low latency

A

Amazon ElastiCache

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57
Q

What is an in-memory data store?

A

Does not persist data
Ephemeral.

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58
Q

which AWS service would be used for in-memory data store

A

ElastiCache

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59
Q

AWS services have data encryption automatically enabled

A

Storage Gateway - inFlight
S3

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60
Q

What are the two types of Cost Allocation Tags

A

AWS Generated
User Defined

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61
Q

For Cost Allocation Report what must be done first?

A

Enable the tag(s)

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62
Q

What services whould be used to analyze Cost Allocation Report?

A

Athena
Redshift
QuickSight

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63
Q

What AWS tool will allow cost forcasting up to 12 months?

A

Cost Explorer

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64
Q

Can Cost explorer show savings plans to purchase?

A

YES

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65
Q

Cost Data Export - what formats are available?

A

CSV
Parquet
Athena

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66
Q

What are the 6 Trust Advisor categories for checks?
FOSSPC

A

Fault tolerance
Operational excellence
Security
Service limits
Performance
Cost Optimization

67
Q

AWS Control Tower offers the easiest way to…

A

set up and govern a new, secure, multi-account AWS environment.

68
Q

For each resource, each tag key must be unique, and each tag key can have only one value

A

TRUE

69
Q

Compared to the on-demand instance prices, what is the highest possible discount percent offered for reserved instances (RI)

A

72%

70
Q

What is AWS Knowledge Center

A

contains the most frequent & common questions and requests.

starting point of checking for a solution or troubleshooting an issue with AWS services

71
Q

AWS is responsible for Security ‘of’ the Cloud

A

TRUE

72
Q

Customer is responsible for Security ‘in’ the Cloud

A

TRUE

73
Q

Configuration Management is the responsibility of the customer

A

FALSE - responsibility of both AWS and Customer

74
Q

Which of the following are mandatory elements of an IAM policy?

A

Effect, Action

75
Q

Which of the following are optional elements of an IAM policy?

A

SID
Principle - some cases
Resource - some cases
Condition

76
Q

Is AWS Web Application Firewall (AWS WAF) regional in scope?

A

NO - Global in scope

77
Q

Is AWS Lambda regional service?

A

YES

78
Q

Is AWS Rekognition regional service?

A

YES

79
Q

Is S3 a regional service?

A

Buckets are regional, however global namespace

80
Q

What provides a guided path to help customers deploy, configure, and secure their new workloads while ensuring they are ready for on-going operations in the cloud

A

Cloud Foundations

81
Q

Does EFS encrypt data automatically?

A

NO -
To turn on, replicate FS to new FS and turn on encryption.

82
Q

Does AWS Storage Gateway encrypt data in transit automatically?

A

YES

83
Q

Can Cost explorer be used to determine instances with low utilization?

Whats another service that can be used for this purpose?

A

YES

Trusted Advisor

84
Q

What is VPC Interface Endpoint

A

elastic network interface (ENI) with a private IP address from the IP address range of your subnet that serves as an entry point for traffic destined to a supported service.

85
Q

What is VPC Gateway Endpoint

A

gateway that you specify as a target for a route in your route table for traffic destined to a supported AWS service

86
Q

What is AWS Artifact

A

central resource for compliance-related information that matters to your organization. It provides on-demand access to AWS’ security and compliance reports and select online agreements

87
Q

True or false-
You can use both read replicas and multi-AZ deployment for disaster recovery

A

TRUE

88
Q

What are the 6 pillars of AWS well-architected framework?
PROCSS

A

Performance Efficiency
Reliability
Operational Excellence
Cost Optimization
Sustainability
Security

89
Q

Which (Amazon S3) storage classes do not charge any data retrieval fee?

A

S3 One Zone-IA
Intelligent-Tiering

90
Q

Trusted Advisor can provide alerts on which common security misconfigurations?

A

When you don’t turn on user activity logging (AWS CloudTrail)
When you allow public access to Amazon S3 buckets

91
Q

Can EFS be used by on-prem servers?

A

YES - LINUX ONLY!

92
Q

True or False -
Amazon S3 stores data in a flat non-hierarchical structure

A

TRUE

93
Q

True or False -
AWS Budgets can be used to alert on low util for RI instances?

A

TRUE

94
Q

Whats the difference between Pilot Light and Warm Standby DR strategy?

A

Pilot light requires you to first deploy infrastructure and then scale out resources before the workload can handle requests.

Warm standby strategy deploys a functional stack, but at reduced capacity.

95
Q

With AWS Organizations, what benefit in terms of cost control?

A

Pricing benefits from aggregated usage,
Volume discounts for Amazon EC2 and Amazon S3.
Shared Reserved Instances

96
Q

What is the name of a central repository to store structural and operational metadata for data assets in AWS Glue

A

Glue Data Catalog

97
Q

What is AWS Lightsail

A

Simple alternative to EC2, RDS, ELB ect,
Meant for people with little cloud experience
Use for simple web applications
No AutoScale

98
Q

What is AWS Batch

A

Batch job (start and end job) service.
Runs on ECS, docker images
Auto-scales

99
Q

What is Elastic Beanstalk?

A

Developer tool,
deploys applications console interface.
PAAS model
Uses EC2, ALB, RDS under the scenes.
Includes Monitoring

100
Q

What is AWS CodeDeploy?

A

deploys code to EC2 instance or on-prem
Hybrid service
Need to install CodeDeploy agent on machines

101
Q

What is CodeBuild

A

Compiles and builds code from code repo and creates artifact to then deploy

102
Q

What is CodePipeline?

A

Orchestrates CodeCommit>CodeBuild>CodeDeploy>ElasticBeanStalk

103
Q

Systems Manager-
What does it enable?
What does it do primarily?
How does it help to manage instances?

A

Auto-patching
Runs command across instances.
View all your managed systems in one place

104
Q

What is AWS outpost?
What benefits?

A

AWS servers installed on-prem that runs AWS services. Customer is now responsible for security of this server.

Easier migration to the cloud
Low latency access to on-prem systems

105
Q

What differences between cloudfront and S3 cross region replication?

A

S3 replication need to setup for every region so is not global.
s3 replication read only
s3 good for dynamic content
CloudFront good for static content

106
Q

What is AWS Global Accelerator

A

Users connect to applications via edge locations, cutting out many network hops and therefore decrease latency.

107
Q

What are the differences between CloudFront and Global Accelerator?

A

Global Accelerator has no caching. CF does.
Global Accelerator has static IP
Global Accelerator good for HTTP requests.
CF good for images and videos ( static content)
Global Accelerator good for fast regional failover

108
Q

What is AWS Wavelength?

A

Infrastructure deployments embedded in Communication Service Provider (CSP) network. Traffic does not leave CSP network.
use cases:
Smart City, Connected Vehicles, ML assisted diagnostics

109
Q

What are local zones?

A

Extends AWS region to a zone to being lower latency to users close to that zone.

110
Q

For a global application-
What is Multi-Region active/passive?

A

Users can read / write to active region but only read from passive region

111
Q

For a global application-
Multi-Region active/passive has what drawback?

A

Global users will have higher latency for writes

112
Q

For a global application-
What is Multi-Region active/active?

A

Users can read / write to either active regions

113
Q

What is Kinesis Data Streams

A

Collect
process
ANALYZE
real-time streaming data

114
Q

Which AWS service provides alerts and remediation guidance when AWS is experiencing events that may impact you

A

AWS Health Dashboard

115
Q

What is CodeGuru?

A

developer tool that provides intelligent recommendations to improve code quality and identify an application’s most expensive lines of code

116
Q

What is Inspector?

A

automated security assessment service for EC2

117
Q

What is Rekognition?

A

Finds objects, people, text, scenes in images or video using ML

118
Q

What is LEX?

A

automatic speech recognition (ASR) for converting speech to text
natural language understanding (NLU) recognize intent of the text

119
Q

What is Directory Services/

A

setup and run directories in the AWS cloud, or connect your AWS resources with an existing on-premises Microsoft Active Directory

120
Q

A company would like to centrally manage ACCESS to multiple AWS accounts and business applications. Which service can it use

A

IAM Identity center

121
Q

What is AWS workspaces?

A

Desktop as a Service. Integrated with KMS

122
Q

What is AppStream?

A

Stream an application to a users browser

123
Q

What is IOT core?

A

Allows for connection of IOT devices into AWS

124
Q

What is AppSync?

A

To sync application data across mobile and web applications in real-time
Uses GraphQL

125
Q

What is Application Composer?

A

Visually design and build serverless applications. Uses CloudFormation

126
Q

What is AWS device farm?

A

Allows to test mobile / web application across devices and browsers.

127
Q

What is AWS DRS?

A

Disaster Recovery Services. Uses continuous block-level replication for on-prem physical or virtual servers into AWS

128
Q

What is AWS DataSync?

A

Move large amounts of data from on-prem into AWS. Runs on schedule. Data copied incrementally after initial load.

129
Q

What services does DataSync integrate with?

A

S3
EFS
FSx for Windows

130
Q

What does Application Discovery Service do?

A

Helps to plan migration by discovering applications that reside on-prem

131
Q

What is AWS Migration Hub

A

Centrally collect servers and inventory data to help plan and execute cloud migrations.

132
Q

What is Pinpoint?

A

Scalable 2-way marketing communications service

133
Q

AWS Trusted Advisor

A

provides real time guidance on resources following AWS best practices (Cost Optimization, Performance, Security, Fault Tolerance, and Service Limits).

134
Q

What is AWS Well-Architected Tool

A

review the state of your workloads and compares them to the latest AWS architectural best practices.

based on the 6 pillars of the Well-Architected Framework

135
Q

Performance Efficacy is what?

A

democratize advanced technologies,
go global in minutes,
use serverless architecture,
experiment more often,
mechanical sympathy.

136
Q

AWS IQ is what?

A

Find experts to help with your AWS projects

137
Q

AWS re:Post is what?

A

Q&A resource offering crowd sourced answers to your AWS technical questions.
Not intended for time sensitive questions.

138
Q

What are principles of reliability?

A

Testing recovery procedures,
stopping guessing capacity
managing changes in automation

139
Q

AWS services have data encryption automatically enabled

A

S3
Storage Gateway

140
Q

Which AWS service can be used to subscribe to an RSS feed to be notified of the status of all AWS service interruptions

A

AWS Health Dashboard - Service Health

141
Q

Can AWS Cost & Usage Report ID underutilized EC2 instances?

A

NO. Use Trusted Advisor or Cost Explorer.

142
Q

True or False:
Configuration Management is the responsibility of the customer

A

Neither - It is shared for both AWS and Customer

143
Q

What are benefits to using AWS Organizations?

A

Centrally manage policies across accounts.
Automate account creation
Consolidated billing
Use SCP’s to govern access to resources
Configure services across multiple accounts, i.e SSO

144
Q

What does AWS Cloud Adoption Framework do for businesses?

A

leverages AWS experience and best practices for business outcomes through innovative use of AWS

145
Q

What is AWS Professional Services?

A

global team of experts that provides assistance through a collection of AWS CAF aligned offerings

146
Q

What is AWS Partner Network (APN)

A

global community that leverages AWS technologies, programs, expertise, and tools to build solutions and services for customers

147
Q

What is the difference between:
AWS Health - Service Health Dashboard
AND
AWS Health - Your Account Health Dashboard

A

AWS Health - Service Health Dashboard displays the general status of AWS services

AWS Health - Your Account Health Dashboard performance and availability of the AWS services underlying your AWS resources

148
Q

What order are credits applied to AWS Account?

A

Soonest expiring

Least number of applicable products

Oldest credit

149
Q

Common stakeholders for AWS CAF Platform Perspective?

A

CTO,
technology leaders,
architects
engineers

150
Q

Common stakeholders for AWS CAF Security Perspective?

A

chief information security officer (CISO)
chief compliance officer (CCO),
internal audit leaders
security architects and engineers

151
Q

Common stakeholdes for AWS CAF Operations Perspective?

A

infrastructure and operations leaders
site reliability engineers
information technology service managers.

152
Q

Common stakeholders for AWS CAF Governance Perspective?

A

CIO, CTO, CFO,
chief data officer (CDO)
chief risk officer (CRO)

153
Q

Define OSI layer 7

A

Application Layer - Users interact

154
Q

Define OSI layer 6

A

Presentation Layer - Encryption occurs here.

155
Q

Define OSI layer 5

A

Session - maintains connections

156
Q

Define OSI layer 4

A

Transport - TCP and UDP

157
Q

Define OSI layer 3

A

Network - decides what physical path.

158
Q

Define OSI layer 2

A

Data Link - defines format of data

159
Q

Define OSI layer 1

A

Physical - Transmits raw bit stream

160
Q

There is a one-minute minimum charge for Linux based EC2 instances true or false?

A

TRUE

161
Q

What the differences b/t Control Tower and Organizations?

A

Control Tower is a governance framework -
Organizations are meant to centrally manage multiple accounts

162
Q

For account creation, what feature does Control Tower offer over Organizations?

A

Automated account creation

163
Q

What additional monitoring does Control Tower do?

A

Continuous monitoring and automated remediation

164
Q

What is a limitation of using RI in Organizations?

A

To get cost benefit, Instances would need to be launched in account B using the same AZ as account A

AWS Cloud Practioner (1 decks)

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