What are the benefits of cloud computing?

The main benefits of cloud computing are:

  •  Data backup and storage of data.
  •  Powerful server capabilities.
  •  Incremented productivity.
  •  Cost effective and time saving.

5. Mention the Layers of PaaS Architecture.

Cloud Controller

  • Automatically creates Virtual machines and controllers.
  •  Deploys Applications
  • Connects to services
  • Automatically scales Ups and Downs.

Storage Services

  • Object
  • NoSQL
  • Relational
  • Block Storage

Applications store in storage services

  • Simple to scale applications
  • Easier recovery from failure

6. What are the Cloud Service Models?

Infrastructure as a service (IaaS)
Platform as a service (PaaS)
Software as a service (SaaS)7.

What are the components of Windows Azure?

Windows Azure platform services

  •  The Cloud
  • SQL Azure
  •  App Fabric: Allows fabric cloud

8. What are the differences occurred in Distributed operations?

FC: Master-Slave operations
Nova: Parallel process and its shared database.9. Which agent is equivalent of Nova Compute?

Azure Agent10. Mention the Reliability and Availability of Cloud Computing.

Use of fault domains:

  • Two virtual machines are in 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 new version of software is rolled out, then only one up gradation of domain is done at a time.
  • Ensures that some instance of the service is always available.
  • Availability of the applications in the multiple instances

Storage and Network Availability:

  • Copies of data are stored in different domains.
  • Mechanism to guard against DoS and DDoS attacks.

11. Give the best example for open source Cloud Computing.

OpenStack12. Explain the Common storage of PaaS Architecture.

Cloud Controller:

  • Automatically creates the virtual machines and containers.
  • Deploys applications
  • Connects to services
  • Automatically scales ups and downs

Storage Services:

  • Object
  • NoSQL
  • Relational
  • Block Storage

Applications store state in storage services:

  • Simple to scale applications
  • Easier recovery from failure.

13. Why Hybrid Clouds are so important?

Cloud Bursting:
Access capacity or specialized software are available in public cloud and not in private cloud.
Examples: Virtual Amazon and Dynamo

Leverage best of both worlds:

  • It is VM Ware cloud
  • It is Expensive
  • Enterprise quality


  • It has commodity servers and storage.
  • It is less reliable.
  • We can run Web servers on OpenStack.
  • Database is built on VCloud.

14. List the platforms which are used for large scale cloud computing.

The platforms that are used for large scale cloud computing are

  •  Apache Hadoop
  • MapReduce

15. Mention the different types of models used for deployment in Cloud Computing.

The different deployment models in cloud computing are

  • Private Cloud
  • Public Cloud
  • Community Cloud
  • Hybrid Cloud

16. Explain the Security management in terms of Cloud Computing.

  • The Identity management access provides the authorization of application services.
  • Access control permission is given to the users to have complete controlling access of another user who is entering into the cloud environment.
  • Authentication and Authorization provides access to only the authorized and authenticated users only to access the data and applications.

17. Which are the Layers that the scope of Cloud Computing?

The different layers used by cloud architecture are as follows:

  • CLC or also known as Cloud Controller
  • Walrus
  • Cluster Controller
  • Storage Controller(SC)
  • Node Controller(NC)

18. Explain what is the full form and usage of “EUCALYPTUS” in cloud computing.

“EUCALYPTUS” full form stands for Elastic Utility Computing Architecture for Linking Your Programs to Useful Systems”.
“Eucalyptus” is an open source software infrastructure in cloud computing, which enables us to implement clusters in cloud computing platform. It is mainly used to build public, hybrid and private clouds. It has the capabilities to produce your own data center into a private cloud and provides to use its all functionality for various other organizations.19. Mention the name of some large cloud providers and databases.

  • Google Big table
  • Amazon Simple Database
  • Cloud based SQL(Sequential Query Language)

20. Explain the difference between cloud and traditional datacenters.

  • The expenditure of the traditional data center is expensive due to heating and hardware/software issues
  • Cloud being scaled when there is an increase in demand. Mostly the expenditure is on the maintenance of the data centers, while this issues are not faced in cloud computing.

21. What are the uses of API’s in cloud services?

  • API’s (Application Programming Interface are used to eliminate the necessity to write the complete programs.
  • The instructions are provided to make communication between one or more applications.
  • Creation of applications is made easy and access for the link of cloud services with other systems.

22. Mention the different datacenters deployment of cloud computing?

Cloud computing consists of different datacenters such as :

  • Containerized datacenters – Containerized datacenters are the packages that contain consistent set of servers, network components and storage delivered to large warehouse kind of facilities. Here each deployment is relatively unique.
  • Low-density datacenters – Containerized datacentres promote heavy density which in turn causes much heat and significant engineering troubles. Low density datacentres are the solution to this problem. Here the equipment is established far apart so that it cools down the generated heat.

23. List down the three basic functioning clouds in cloud computing.

  • Professional cloud
  • Personal cloud
  • Performance cloud

24. What are the characteristics of cloud architecture that differs from traditional cloud architecture?

The characteristics are:

  •  The hardware requirement is being provided as per the demand created for cloud architecture.
  • Cloud architecture is capable of scaling the resource on demand created.
  • Cloud architecture is capable of managing and handling dynamic workloads without any point of failures.

25. What are the building blocks in cloud architecture?

  • Reference architecture
  • Technical architecture
  • Deployment operation architecture
  • Reference architecture
  • Technical architecture
  • Deployment operation architecture
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