Week 2 - Cloud Global Infrastructure Overview Flashcards
What are the objectives of AWS Global Infrastructure?
Objectives:
- Deliver a flexible, reliable, scalable and secure cloud computing environment
- High-quality global network performance
How many Regions does Australia have?
Where are the Australian Regions located?
How many Availability Zones are under each Australian Region?
When were the Australian Regions launched?
Australia has two AWS regions:
Asia Pacific (Sydney) – Launched in 2012.
Asia Pacific (Melbourne) – Launched in March 2022
Both regions have three Availability Zones each
What are the key features of the AWS Global Infrastructure?
The key features of the AWS Global Infrastructure are:
Elasticity and Scalability: It can dynamically adjust to increases or decreases in capacity requirements and rapidly accommodate growth.
Fault Tolerance: It has built-in component redundancy, allowing it to continue operations even if a component fails.
Minimal Human Intervention: It requires minimal to no human intervention while ensuring high availability with minimal downtime.
What are AWS Regions?
An AWS Region is a geographical area that is isolated from other Regions to provide fault tolerance and stability. Data replication across Regions is optional, and communication between Regions uses AWS’s backbone network infrastructure. Each Region offers full redundancy and connectivity to the network, typically consisting of two or more Availability Zones.
What are Availability Zones in AWS, and how do they contribute to fault isolation and resiliency?
Availability Zones are isolated locations within an AWS Region, typically located within 100 kilometers of each other, to provide fault isolation. Each Availability Zone typically includes three data centers with hundreds of thousands of servers. By replicating data and resources across multiple Availability Zones, AWS ensures resiliency. Users can choose their preferred Availability Zone(s) for their resources.
What are AWS Data Centers, and what key features ensure their security, redundancy, and isolation?
AWS Data Centers serve as the foundation for AWS infrastructure, where data is stored and processed. Customers do not specify data centers for their resources. These data centers are designed with security in mind, featuring a redundant design and isolation from each other. Physical access is restricted, and critical system components are backed up. Each data center typically houses 50,000 to 80,000 physical servers.
What is a Point of Presence (PoP) in AWS?
A Point of Presence (PoP) is a location within AWS’s global network infrastructure that delivers content, services, and applications to end users with low latency. PoPs are used by services like Amazon CloudFront (CDN) and AWS Global Accelerator to cache content and optimize the delivery of web traffic to users across different geographical areas.
What is a Content Delivery Network (CDN) in AWS?
In AWS, a Content Delivery Network (CDN) is provided by Amazon CloudFront. It distributes content across a global network of edge locations to deliver data, videos, applications, and APIs with low latency and high transfer speeds. CloudFront caches content at edge locations closer to users, improving performance and reliability.
Why do we need Content Delivery Networks (CDNs)?
CDNs are needed to improve the speed, performance, and reliability of delivering content to users. By caching content at locations closer to users, CDNs reduce latency, minimize load times, and help handle large amounts of traffic efficiently, enhancing the user experience.
What are Edge Locations in AWS?
Edge Locations in AWS are data centers that deliver content to users with low latency as part of the Amazon CloudFront CDN. They cache content closer to users to improve performance.
What are Regional Edge Caches in AWS?
Regional Edge Caches are larger cache locations between the origin server and edge locations, providing additional caching for content not found in edge locations, further optimizing content delivery across a region.
What services do Edge Locations and Regional Edge Caches provide in AWS?
Edge Locations and Regional Edge Caches in AWS provide content delivery and caching through Amazon CloudFront. Edge Locations cache content closer to users for lower latency, while Regional Edge Caches store less frequently accessed content to reduce load on origin servers and improve efficiency. Both support services like AWS Lambda@Edge.
What are the key AWS storage services?
Amazon S3
Amazon EBS
Amazon EFS
Amazon S3 Glacier
What are the key AWS compute services?
Amazon EC2
AWS Elastic Beanstalk
AWS Lambda
What are the key AWS database services?
Amazon DynamoDB
Amazon Redshift
Amazon Aurora
Amazon Relational Database Service
