Global Infrastructure Flashcards
What is a Global Application?
it’s an application which is deployed in multiple gepgraphies.
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In AWS, What is the equivalent of a Region?
It’s a Edge Location, the Data Center that is closer to your geographic location.
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What is Decrease Latency?
The ability to drecrease the time to reach some server.
One way to improve it is to deploy your applications closer to your users.
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What is Disaster Recovery?
It’s teh ability to recover from a disaster and keep working after it (Disaster)
It can be possible, i.e., having a DC as a backup in case that the principal DC is fell.
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What is one of the bennefit of having Distributed Global Infrastructure?
Attack Protection.
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What is the hierarchy of Global AWS Infrastructure?
- Regions (For deploying Apps and Infra.)
- Availability Zones (made of Multiple Data centers)
- Edge Locations (Closer to the user)
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What are the 4 Global Applications in AWS?
+ Route 53: It’s a DNS.
+ CloudFront: Its a Gloval Content Delovering (Cache)
+ S3 Trasnfer Acelerator. Accelerate Uploads & Downloads in Amazon S3 (Buckets).
+ AWS Global Acelerator. Provide performance thorugh AWS Private Network
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What is Amazon Route 53?
It’s a DIrect Name Service (DNS) that helps to reach a server through its URL.
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In Route 53, What is a Single Routing Policy?
Just provides the IP to reach the server.
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In Route 53, What is a Weighted Routing Policy?
it’s a policy where th DNS gives the server according weight rules, i.e. Wokload desired for each one.
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In Route 53, What is a Latendy Routing Policy?
A policy that decide the server acording to the latency to reach it. Choosing the one with the lower latency
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In Route 53, What is a Failover Routing Policy?
A policu that has The Master server and a failover destiny, in case that the master fails.
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How does AWS CouldFront work?
it’s a Content Delivery Network (CDN)
Basicaly, it’s a Cache on the Edge which replicate all or part of the origin, which can be a S3 Bucket or a HTTP Apps.
In this way the low latency decrease,improving the reading
What does CloufFront need to have access to a AWS S3?
An Origin Access Identity (OAI)
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For AWS CloudFront, what could be a source of information to be cached?
- EC2 Instance
- S3 as website
- Application Load Balancer
- Any HTTP Site
basicaly, any source that can be handled as a WebSite that has static content.
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What are the diferences between S3 Region Replication and CloudFront?
- Basically the DCN (CloudFront) is a cache that Keep the information of a Bucket for an short amount of time.
- In AWS Cloudfront, the information is available as a Global service but S3 is AZ.
- S3 is better for Dynamic Content but CloudFront for Static Content near of the AZ.
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What is S3 Transfer Acceleration?
Using the AWS Private Netwrok, and a Edge Locations, you can acces to the content of a S3 Bucket faster thatn Public Network.
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What is AWS Global Acceleration?
Using the AWS Private Netwrok, and a Edge Locations, you can improve the performance and availibilty of your Application throught a global enviroment.
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How may IP Casts are created in AWS Global Acelerator?
2 IP Cast are created and all the trafic ios forwarded thought the Edge Locations.
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What are the main diferences Between CloudFront and Global Acelerator?
- CloudFront create a cache for the content.
- Global Accelerator performs the latency to reach the source of information throught a private network
+ CloudFront is located at the edge.
+ Global AAcelerato use edge Locations to fordward the trafic to AWS Private network.
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Are global Acelerstor and CloudFront protected with Amazon Shield?
Yes, both of them are integrated with DDoS (Distributed Denil Of Service) pretection Service
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What isAWS Outpost?
It’s tej AWS service that provides “Server-Racks” that offer the same AWS Services but On-Premise, in this way you have your Own Cloud, bu you are responsibily for the servers and security.
it could be see as a n extensión of AWS Service in the cloud.
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What are AWS Local Zones?
- They are selected AWS Services that are closer to the user where the low latency is really sensitive.
- It extends you Virtaul Private Cloud (VPC) to more locations.
- And AWs Local Zone has directo communication with its AZ (Data Center).
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What are the 4 Global Applications Architectures?
- Single Region, Singel AZ
- Single Region, Multiple AZ
- Multiple Region, Active-Pasive AZ.
- Multiple Region, Active-Active AZ.
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Under an Multiple Region, Active-Pasive A Architecture, it’s possible to write on a Pasive AZ?
- No, an Passive AZ is only for read.
- To write you need in all AZ you need and architecutre with AZs in Active-Active
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What is AWS WaveLenght?
it’s the AWS infrastructure deployed within the Telecommunication Provider to provide service at the Edge of5G networks.
Traffic doesn’t leave the Communication Sevice Provider (CSP) Network.
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