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AWS Cloud Practitioner > Global Infrastructure > Flashcards

Global Infrastructure Flashcards

1
Q

What is a Global Application?

A

it’s an application which is deployed in multiple gepgraphies.

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2
Q

In AWS, What is the equivalent of a Region?

A

It’s a Edge Location, the Data Center that is closer to your geographic location.

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3
Q

What is Decrease Latency?

A

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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4
Q

What is Disaster Recovery?

A

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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5
Q

What is one of the bennefit of having Distributed Global Infrastructure?

A

Attack Protection.

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6
Q

What is the hierarchy of Global AWS Infrastructure?

A
  1. Regions (For deploying Apps and Infra.)
  2. Availability Zones (made of Multiple Data centers)
  3. Edge Locations (Closer to the user)

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7
Q

What are the 4 Global Applications in AWS?

A

+ 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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8
Q

What is Amazon Route 53?

A

It’s a DIrect Name Service (DNS) that helps to reach a server through its URL.

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9
Q

In Route 53, What is a Single Routing Policy?

A

Just provides the IP to reach the server.

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10
Q

In Route 53, What is a Weighted Routing Policy?

A

it’s a policy where th DNS gives the server according weight rules, i.e. Wokload desired for each one.

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11
Q

In Route 53, What is a Latendy Routing Policy?

A

A policy that decide the server acording to the latency to reach it. Choosing the one with the lower latency

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12
Q

In Route 53, What is a Failover Routing Policy?

A

A policu that has The Master server and a failover destiny, in case that the master fails.

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13
Q

How does AWS CouldFront work?

A

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

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14
Q

What does CloufFront need to have access to a AWS S3?

A

An Origin Access Identity (OAI)

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15
Q

For AWS CloudFront, what could be a source of information to be cached?

A
  • 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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16
Q

What are the diferences between S3 Region Replication and CloudFront?

A
  • 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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17
Q

What is S3 Transfer Acceleration?

A

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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18
Q

What is AWS Global Acceleration?

A

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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19
Q

How may IP Casts are created in AWS Global Acelerator?

A

2 IP Cast are created and all the trafic ios forwarded thought the Edge Locations.

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20
Q

What are the main diferences Between CloudFront and Global Acelerator?

A
  • 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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21
Q

Are global Acelerstor and CloudFront protected with Amazon Shield?

A

Yes, both of them are integrated with DDoS (Distributed Denil Of Service) pretection Service

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22
Q

What isAWS Outpost?

A

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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23
Q

What are AWS Local Zones?

A
  • 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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24
Q

What are the 4 Global Applications Architectures?

A
  1. Single Region, Singel AZ
  2. Single Region, Multiple AZ
  3. Multiple Region, Active-Pasive AZ.
    1. Multiple Region, Active-Active AZ.

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25
Q

Under an Multiple Region, Active-Pasive A Architecture, it’s possible to write on a Pasive AZ?

A
  • 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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26
Q

What is AWS WaveLenght?

A

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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AWS Cloud Practitioner (17 decks)

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