Architecting on AWS

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Questions and Answers

Which of the following is NOT a typical benefit associated with moving to AWS?

  • Optimized costs
  • Increased innovation
  • Accelerated time to market
  • Increased complexity and risk (correct)

AWS Regions are completely independent of each other.

True (A)

What is the primary purpose of AWS Local Zones?

To deliver low-latency applications.

AWS uses a global network consisting of more than 400+ ______ to provide content delivery services.

<p>points of presence</p> Signup and view all the answers

Match the following AWS infrastructure elements with their descriptions:

<p>Data Centers = Physical buildings hosting servers Availability Zones = Isolated locations within a region Regions = Geographical areas containing AZs Edge Locations = Content delivery network endpoints</p> Signup and view all the answers

Which of the following best describes an AWS Region?

<p>A geographically isolated area with multiple Availability Zones (A)</p> Signup and view all the answers

Edge locations are used to run virtual machines close to the end user.

<p>False (B)</p> Signup and view all the answers

Name three factors that can influence the selection of an AWS Region.

<p>Governance, Service availability, Latency, Cost</p> Signup and view all the answers

AWS ______ is a DNS web service that is highly available and scalable.

<p>Route 53</p> Signup and view all the answers

Match the Route 53 routing policies with their descriptions:

<p>Simple Routing = Routes traffic to a single resource Failover Routing = Routes traffic to a backup resource when the primary fails Geolocation Routing = Routes traffic based on the user's location Latency-based Routing = Routes traffic to the resource with the lowest latency</p> Signup and view all the answers

What is the purpose of Availability Zones in AWS?

<p>To increase application availability and fault tolerance (C)</p> Signup and view all the answers

Data centers are organized into edge locations.

<p>False (B)</p> Signup and view all the answers

What AWS service can be used to provide a content delivery network?

<p>Amazon CloudFront</p> Signup and view all the answers

Using Amazon CloudFront can help to decrease ______ in accessing your content.

<p>latency</p> Signup and view all the answers

Match the following AWS services with their primary function:

<p>AWS Shield = DDoS protection AWS WAF = Web application firewall Amazon S3 = Object storage Amazon EC2 = Virtual servers in the cloud</p> Signup and view all the answers

Which of these AWS infrastructure components would you use to provide low latency connections for gaming?

<p>AWS Local Zones (A)</p> Signup and view all the answers

An AWS Region consists of a single Availability Zone.

<p>False (B)</p> Signup and view all the answers

Which Route 53 routing policy allows you to route traffic based on the location of your users?

<p>Geolocation routing</p> Signup and view all the answers

With CloudFront, you should choose your ______ first.

<p>origin</p> Signup and view all the answers

Match the following terms with their description:

<p>Edge Caching = Storing data at edge locations Origin = Source of the content in CloudFront Distribution = CloudFront's core entity, containing the name, configuration, and behaviour</p> Signup and view all the answers

Which AWS service category includes tools for creating and managing databases?

<p>Database (B)</p> Signup and view all the answers

Route 53 can only resolve domain names to IP addresses; it cannot register or transfer domain names.

<p>False (B)</p> Signup and view all the answers

What type of routing policy would you use to send a percentage of your traffic to a new version of your application?

<p>Weighted routing</p> Signup and view all the answers

AWS ______ is used to protect your content, applications, and APIs against malicious bots, and DDoS attacks.

<p>Shield</p> Signup and view all the answers

Match the following AWS service categories with their descriptions:

<p>Analytics = Services analyzing and processing data Compute = Services providing computing resources Storage = Services for data storage Networking = Services that provide networking capabilities</p> Signup and view all the answers

In Route 53, which routing policy would you use to direct users to different endpoints based on their location?

<p>Geolocation routing (C)</p> Signup and view all the answers

AWS Local Zones provide a fully consistent AWS experience, meaning all AWS services are available in every Local Zone.

<p>False (B)</p> Signup and view all the answers

What is the primary benefit of using edge locations with Amazon CloudFront?

<p>Reduced latency, faster content delivery</p> Signup and view all the answers

When configuring CloudFront, adding a custom domain name is ______.

<p>optional</p> Signup and view all the answers

Match the following AWS services with the service category they belong to:

<p>Lambda = Compute S3 = Storage Route 53 = Networking CloudFront = Networking</p> Signup and view all the answers

What is the main purpose of AWS WAF?

<p>Is a Web Application Firewall (D)</p> Signup and view all the answers

Edge locations only cache static content.

<p>False (B)</p> Signup and view all the answers

What is the default routing policy in Route 53?

<p>Simple routing policy</p> Signup and view all the answers

In CloudFront, a Time To Live (TTL) is a configuration that determines how long content stays in the ______.

<p>cache</p> Signup and view all the answers

Match the following AWS components to their function in high availability setups:

<p>Availability Zones = Provides fault isolation within a Region Regions = Provides geographic isolation Route 53 = Redirects traffic based on health checks and policies Edge Locations = Reduces latency for global users</p> Signup and view all the answers

According to the image, which one is NOT a characteristic of AWS Global Infrastructure?

<p>Pay as you use more resources (B)</p> Signup and view all the answers

AWS services will not be available if the AWS Region goes down.

<p>True (A)</p> Signup and view all the answers

Why is important to choose a AWS Region near your clients? Give me two valid reasons.

<p>Reduce latency and improve compliance.</p> Signup and view all the answers

The most important feature to choose AWS Local Zone is ______.

<p>Low latency</p> Signup and view all the answers

Match the services with the characteristics to the main service:

  1. Reduce latency.
  2. DNS highly available.
  3. Content Delivery Network.

<p>Amazon Route 53 = 2 Amazon CloudFront = 1, 3</p> Signup and view all the answers

Flashcards

Benefits of AWS Services

AWS services are hosted in global data centers, offering a secure and robust environment for business needs.

Why Move to AWS?

Agility, Optimize costs, Minimize security vulnerabilities, Reduce management complexity.

AWS Service Categories

AWS services are categorized into Analytics, Compute, Database, Machine Learning, IoT and more.

AWS Global Infrastructure

AWS global infrastructure is organized into Regions, Availability Zones, Data Centers and Edge Locations.

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AWS Data Centers

AWS data centers are physical facilities that house thousands of servers.

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Availability Zones (AZs)

Availability Zones are data centers in a Region interconnected by high-speed private links and designed for fault isolation.

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Region Selection Factors

Latency, Governance, Service Availability and Cost.

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AWS Local Zones

AWS Local Zones are infrastructure deployments that place compute, storage, databases, and other select AWS services closer to end-users.

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Edge Locations

Locations that deliver content with low latency.

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Edge location features

Caching data, Fast content delivery, Better user experience.

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Amazon Route 53

A scalable DNS web service.

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Functionality of Route 53

Resolves domain names to IP address; registers a domain name.

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Route 53: Routing policies

Routes requests based on characteristics, health checks, and more.

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Amazon CloudFront

A global content delivery network (CDN) service for faster content distribution.

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Edge Caching Benefits

Decreases latency by caching data at edge locations and enhances security.

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Study Notes

  • This module provides an overview of architecting on AWS
  • It covers Amazon Web Services (AWS) services, AWS infrastructure, Route 53, and CloudFront

Amazon Web Services (AWS)

  • AWS has global data centers
  • AWS offers more than 200 services
  • AWS services are secure and robust
  • "Pay as you go" payment model

Why customers move to AWS

  • To increase business agility
  • To accelerate time to market
  • Scale seamlessly
  • Increase innovation
  • To optimize costs
  • To minimize security vulnerabilities
  • To reduce management complexity and risk

AWS service categories

  • Analytics
  • Customer enablement
  • Developer tools
  • Customer engagement applications
  • Business applications
  • Application integration
  • Migration and transfer
  • End user computing
  • Machine learning
  • Networking and content delivery
  • Security identity and compliance
  • Management and governance
  • Storage
  • Containers
  • Game development
  • Satellite
  • Front-end web and mobile
  • Robotics
  • VR and AR
  • Internet of Things (IoT)
  • Media services
  • Blockchain
  • Quantum technologies

AWS infrastructure

  • AWS infrastructure is organized into: data centers, availability zones, regions, AWS local zones, and edge locations

AWS data centers

  • AWS services operate within AWS data centers
  • Data Centers host thousands of servers
  • Each location uses AWS proprietary network equipment
  • Data centers are organized into Availability Zones

Availability Zones

  • Availability Zones contain data centers in a Region
  • Availability Zones are designed for fault isolation and high availability
  • Availability Zones are interconnected by using high-speed private links

AWS Regions

  • Each Region is completely independent
  • Each Region uses AWS network infrastructure
  • Each Region has multiple Availability Zones

Factors that impact Region selection

  • Governance
  • Service availability
  • Latency
  • Cost

AWS Local Zones

  • AWS Local Zones are used for media and entertainment content creation
  • They are used for real-time gaming
  • They are used for machine learning inference
  • They are used for live video streaming
  • They are used for augmented reality (AR) and virtual reality (VR)

Edge Locations

  • Edge locations run in major cities around the world
  • Edge locations support AWS services like Amazon Route 53 and Amazon CloudFront

AWS Local Zone and edge location features

  • Local Zones: Low latency, local data processing, consistent AWS experience
  • Edge locations: caching of data, fast delivery of content, better user experience

Amazon Route 53

  • Route 53 resolves domain names to IP addresses
  • Route 53 registers or transfers a domain name
  • Route 53 routes requests based on latency, health checks, and other criteria

Route 53 public and private DNS

  • Public hosted zones route to internet-facing resources and resolve from the internet
  • Private hosted zones route to VPC resources and resolve from inside the VPC

Route 53 Routing policies

  • Simple
  • Failover
  • Geolocation
  • Geoproximity
  • Latency-based
  • Multivalue answer
  • Weighted

Amazon CloudFront

  • Amazon CloudFront is the service can provide the content delivery network that we need
  • AWS uses a global network of 400+ points of presence

Amazon CloudFront overview

  • Amazon CloudFront is a global content delivery network that integrates with AWS WAF and AWS Shield
  • Amazon CloudFront handles static or dynamic content and has built-in security features

Edge caching

  • Edge caching decreases latency by caching data at edge locations
  • Edge caching increases security

CloudFront caching steps

  • The request is routed to the optimal edge location
  • Non-cached content is retrieved from the origin
  • Original content is transferred to a CloudFront edge location for caching
  • Data is transferred to the user

Configuring CloudFront

  • Choose your origin such as: S3 bucket, ELB load balancer, custom origin, EC2 instance, on-premises server
  • Create a distribution with a defined cache behavior with: path pattern, protocol policy, HTTP methods, signed URL, time to live (TTL), cache key settings
  • Optionally, associate a function, associate AWS WAF web access control list (web ACL), add custom domain name

Improving performance

  • AWS handles TCP optimization, TLS 1.3 support, and dynamic content placement
  • You can: Choose your caching strategy, improve your cache hit ratio, and use CloudFront Origin Shield

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