Lesson 2 - Global Infrastructure And Reliability Flashcards
what is most important aspect when it comes to availibility
High Availability and fault tolerance
Why it is not a good idea to have one big data center
if any issues like power outage or natural calamities, then all applications will go down
What does AWS has to manage disasters
AWS builds data center in large groups called REGIONS. Each Regions have multiple data centers
Where are REGIONS located?
REGIONS are built through out the globe close to where the business demands
Are Regions connected?
Regions are connected through High Speed Fiber Connectivity.. even from one corner to another corner
How is security is promised from One region to another
Data in one Region will not leave that region to another region unless the user we explicitly configure it to move b/w regions
4 Business Factors that decides the Region
- Compliance with data governance and legal requirements
- Proximity to your customers
- Feature Availability for that region
- Pricing
What is Latency
Time it takes for data to be sent or received
What is Availaibility Zone
AWS calls a data center or a group of data centers as AZ. It has redundant power, n/w lot of available resorces
So how is AWS REGION and Availability Zones related to
AWS Regions consists of multiple, isolated Availability Zones. But they ae not at same location to avoid the any issues due to natural calamities or outage
What is the recommendation from AWS
Its recommended to atleast run across two availability Zones in a region
What are REGIONS
A geographical area that contains AWS resources
what is CDN
Content Delivery Network
It is caching copies of data closer to customers all around the world uses the concept of CDN
what is CDN in amazon
AMAZON CLOUDFRONT
What is AMAZON CLOUD FRONT
Service that delivers data, videos, apis to customers around the world with low latency, high transfer speed
