Global Infrastructure

Question 1

AWS Cloud Infrastructure

Answer 1

build around AWS Regions and Availability Zones

Question 2

AWS Region

Answer 2

physical location in the world where we have multiple Availability Zones

isolated from other Amazon regions - achieves greatest possible fault tolerance and stability

Question 3

Availability Zone

Answer 3

consist of one/more discrete data centres, each with redundant power, networking, and connectivity, housed in separate facilities.

ability to operate production applications and databases that are more highly available, fault tolerance, scalable than possible from single data centre.

isolated - connected through low-latency links

designed as independent failure zone

redundantly connected to multiple tier-1 transit providers

Question 4

AWS Cloud

Answer 4

over 77 availability zones

over 24 geographic regions

flexibility to place instances and store data within multiple geographic regions and across multiple availability zones within each AWS region

Question 5

data centres

Answer 5

discrete uninterruptible power supply (UPS) and onsite backup generation facilities

located in different availability zones designed to be supplied by independent substations to reduce risk of event on power grid impacting more than one Availability Zone