What is Microsoft Azure? How does it work?

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What is Microsoft Azure? How does it work?
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What is Microsoft Azure?

• Microsoft Azure is essentially a private as well
  as public cloud platform. It is a cloud service
  catalogue that developers, as well as IT
  professionals, utilize to build along with deploy
  as well as manage cloud applications via a global
  network of various data centres created by
  Microsoft. There are various Azure cloud
  solutions for clients to choose from.

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How Microsoft Azure actually works?

• Azure utilizes a technology popularly called as
  virtualization. It is often used by Microsoft
  technology associate.
• It separates the actual close coupling among the
  operating system as well as CPU or server of a
  computer through a particular abstraction layer
  known as a hypervisor.
• Now, this hypervisor emulates entire functions of
  any real computer, server or its own CPU in a
  particular virtual machine.
• Users can run multiple virtual machines
  simultaneously, and each VM can run any of the
  compatible operating systems.

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• Azure actually takes this entire virtualization
  technology and takes it to a huge scale in
  various data centres of Microsoft all over the
  world. Sharepoint application development
  services use Microsoft Azure extensively. 
• Cloud is essentially a set of physical servers in
  one or numerous data centres which run
  virtualized hardware on the clients behalf.
• In every data centre, there is a set of servers
  located in several server racks.
• Each server rack consists of many blade servers
  along with network switch that offers network
  connectivity as well as a PDU or power
  distribution unit, which supplies power.

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• Often, these racks are essentially grouped
  together into much larger units which are called
  as clusters.
• Every server consists of a hypervisor in order to
  run numerous virtual machines.  
• Now, a network switch offers connectivity to
  these servers. 
• Also, a server in every rack runs on a special
  software known as Fabric Controller.
• Each Fabric Controller is duly connected to
  another special software known as Orchestrator.

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• The Orchestrator is essentially responsible for
  the management of everything which happens in
  Azure.
• It includes responding to user requests,
  assigning services, monitoring the server
  maintenance and the services that actually run on
  it and even returns all the servers to normal
  whenever an error occurs.
• Every instance of the Fabric Controller
  essentially connects to another set of numerous
  servers running the orchestration software in the
  cloud, which is commonly called as front-end. 

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• The front-end essentially hosts the web services
  along with the RESTful API as well as the
  internal Azure databases utilized for all of the
  functions that the actual cloud carries out.
• Users make the desired request using the web API
  of Orchestrator.  
• This web API can easily be called on by different
  tools, including Azure Portal User
  Interface. Azure application development
  company utilize this web API too.

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