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AWS CLOUD PRACTIONER EXAM NOTES - 9

                              Networking and content delivery


1.Amazon API Gateway
2.Amazon CloudFront
3.AWS Direct Connect
4.Amazon Route 53
5.Amazon VPC (Virtual private cloud)


a. VPN (Virtual private network)
b. AWS Global accelrator
c. Elastic Load Balancing (ELB)
d. AWS Edge location
e. AWS App Mesh
f. AWS Cloud Map
 


Amazon API Gateway
Amazon API Gateway enables you to create and deploy your own 
REST and WebSocket APIs at  any scale. 

You can create APIs that access Amazon Web  Services or other web services,
as well as data that’s stored in the AWS Cloud.

You can  create APIs to use in your own client applications, 
or you can make your APIs available  to third-party app developers. 

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Amazon CloudFront

Amazon CloudFront is a content delivery network (CDN) that allows 
you to store (cache) your content at “edge locations” located 
around the world, which helps in LATENCY.
 
Built-in Distributed Denial of Service (DDoS) attack protection(AWS Shield).

Integrates with many AWS services (S3, EC2, ELB, Route 53, Lambda).

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AWS Direct Connect
AWS Direct Connect is a network service that provides an alternative                     to using the Internet to connect a customer’s on-premises sites to AWS.

Data is transmitted through a private network connection between AWS                     and a customer’s data center or corporate network.

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Amazon Route 53
Amazon Route 53 is the AWS Domain Name Service.

Domain registration – Route 53 allows you to register domain names.

Domain Name Service (DNS) – Route 53 translates name to IP addresses 
   
Health checking – Route 53 sends automated requests to your application 
                  to verify that it’s reachable, available, and functional.

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Amazon VPC
A virtual private cloud (VPC) is a virtual network dedicated to your AWS account.
It is logically isolated from other virtual networks in the AWS Cloud.

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AWS Virtual Private Network (AWS VPN)
establishes a secure and private tunnel from your network or device to the AWS Cloud.

You can extend your existing on-premises network into a VPC
(Virtual private cloud) or connect to other AWS resources from a client. 

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AWS Global accelerator 
AWS Global Accelerator is a network layer service in which you create accelerators to
improve availability and performance for internet applications used by a global user.
    
It provides static IP addresses that act as a fixed entry point to application          endpoints in a single or multiple AWS Regions, such as Application Load Balancers,        Network Load Balancers or EC2 instances.

Uses the AWS global network to optimize the path from users to applications, 
improving the performance of TCP and UDP traffic.
  
AWS Global Accelerator continually monitors the health of application endpoints and       will detect an unhealthy endpoint and redirect traffic to healthy endpoints in less       than 1 minute.
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Elastic Load Balancing 
automatically distributes your incoming traffic across multiple targets, such as EC2 instances, containers, and IP addresses, in one or more Availability Zones. 

It monitors the health of its registered targets and routes traffic only to the healthy targets. You can select the type of load balancer that best suits your needs.
Network Load balancer. Application Load balancer. Gateway load balancer

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Edge locations
are Content Delivery Network (CDN) endpoints for CloudFront. 
Regional Edge Caches sit between your CloudFront Origin servers n the Edge Locations.

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AWS App Mesh 
makes it easy to monitor and control microservices that are running on AWS.
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AWS Cloud Map
lets you name and discover your cloud resources.

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