AWS Overview - Regions and AZs

Question 1

Why would a company use AWS Cloud? List 4

Answer 1

1. To build sophisticated, scalable applications.
2. Manage enterprise IT which includes data backup and storage.
3. Host websites and apps.
4. Host gaming servers

Question 2

What is an AWS region? Provide an example.

Answer 2

It’s a cluster of data centers. Most AWS services are region scoped.

Example: us-east-1

Question 3

Name 4 ways to choose an AWS region if you’d like to launch a new app?

Answer 3

1. Compliance - Gov legislations may require you to keep all data within a region.
2. Proximity to users - This helps reduce latency.
3. Available services - Some services may be unavailable in some regions.
4. Pricing - Prices varies across regions.

Question 4

What is an Availability Zone? Provide an example

Answer 4

One or more discrete data centers with redundant power, networking and connectivity. (isolated from disasters)

Example: us-east-1a

Question 5

How many AZs make up a region?

Answer 5

Each region is made up of multiple AZs. (Between 3-6 but usually 3).

Question 6

How are AZs connected to each other?

Answer 6

They’re connected with high bandwidth, ultra-low latency networking.