Microsoft Azure has datacenters in several locations in North America, Europe, and Asia.
Which of the following statements describes an Azure region?
A) A geographical area containing more than one datacenter in close proximity networked together with a low-latency network
B) A geographical area containing one or more datacenters networked together with a low-latency network and are in close proximity
C) A geographical area containing only one datacenter
D) A geographical area containing at least one, but potentially multiple, datacenters that are in close proximity and networked together through the Internet
Explanation
An Azure region is a geographical area containing one or more datacenters that are networked together with a low-latency network and are in close proximity.
Azure has some special regions used for compliance or legal purposes:
- Regions such as US DoD Central, US Gov Virginia, and US Gov Iowa are physical and logical network-isolated instances of Azure for use by US government agencies and their partners. They are operated by screened US persons. These regions contain additional compliance certifications.
- Regions are available in Asia, China East, China North, and certain other countries through a unique partnership between Microsoft and 21Vianet. Microsoft does not directly maintain the datacenters.
- Germany Central and Germany Northeast regions are available through a data trustee model whereby customer data remains in Germany under control of T-Systems, a German Telekom company, acting as the data trustee. Any user or enterprise that needs their data to reside in Germany can use this service.
Azure has regional pairing, which are two or more regions within the same geography. The lone exception is Brazil South, which is not paired with another region in the same geography. With regional pairing, platform updates (planned maintenance) are performed so that only one paired region is updated at a time. At least one region in each pair will be prioritized for recovery in the event of an outage affecting multiple regions.
Some services or virtual machine features are only available in certain regions.
Objective:
Describe core Azure services
Sub-Objective:
Understand the core Azure architectural components
References:
YouTube video > AZ900T01 M2L2 Regions Jan19
Microsoft Azure > Azure global infrastructure > Azure Regions
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