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Mention the reliability and availability of Cloud Computing.

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Use of Fault Domains:

  • Two virtual machines are in a single fault domain if a single hardware can bring down both the virtual machines
    Azure automatically distributes instances of a role across fault domains.
  • Use of Upgrade Domains:

    • When a new version of the software is rolled out, then only one up-gradation of the domain is done at a time.
    • It ensures that any instance of the service is always available.
    • There is an availability of the applications in multiple instances.
       

      Storage and Network Availability:

      • Copies of data are stored in different domains.
      • it is a mechanism to guard against DoS and DDoS attacks.
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