Question

Mention the reliability and availability of Cloud Computing.

Answer 1

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.