Azure Fundamentals AZ-900 Practice Test 1

Explanation:
A region is a set of data centres deployed within a latency-defined perimeter and connected through a dedicated regional low-latency network.
Microsoft Azure currently has 55 regions worldwide.
Regions are divided into Availability Zones. Availability Zones are physically separate locations within an Azure region. Each Availability Zone is made up of one ormore datacenters equipped with independent power, cooling, and networking.
References:
https://azure.microsoft.com/en-gb/global-infrastructure/regions/