# AWS 10,000 Foot Overview

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### AWS Global Infrastructure

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#### Availability Zone

* Think of an `Availability Zone` as a **Data Center**
  * A Data Center is just a building filled with Servers!
* An **Availability Zone** may be several **data centers**, but because they are so close together, they are counted as 1 Availability Zone

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#### Region

* A Geographical area
* Each `Region` consists of 2 (or more) **Availability Zones**
* `US East (N. Virginia)` is the region where all the new services come out!

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#### Edge Locations

* `Edge Locations` are endpoints for AWS which are used for **caching content**
* There are many more **Edge Locations** than **Regions**
* Currently there are 205 Edge Locations

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### What to Know to Pass Solutions Architect Exam

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