Understanding Cloud Computing: Origins, Concepts, and Risks
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Questions and Answers

When was the concept of utility computing first publicly proposed?

  • 1990
  • 1969
  • 1961 (correct)
  • 1980
  • Who was the chief scientist of the ARPANET project that mentioned the spread of 'computer utilities'?

  • Tim Berners-Lee
  • John McCarthy
  • Alan Turing
  • Leonard Kleinrock (correct)
  • Which of the following is not an example of an Internet-based computer utility mentioned in the text?

  • MySpace
  • Hotmail
  • Windows (correct)
  • Yahoo!
  • When did the general public start leveraging Internet-based computer utilities?

    <p>Mid-1990s</p> Signup and view all the answers

    Who famously mentioned that computing might someday be organized as a public utility?

    <p>John McCarthy</p> Signup and view all the answers

    Which computer scientist mentioned computer networks were in their infancy but would likely develop into 'computer utilities'?

    <p>Leonard Kleinrock</p> Signup and view all the answers

    What is the primary purpose of a cloud in IT environments?

    <p>To remotely provision scalable and measured IT resources</p> Signup and view all the answers

    What is the term used to describe an IT resource that is hosted within an organizational boundary?

    <p>On-premise</p> Signup and view all the answers

    What is an IT resource?

    <p>A physical or virtual IT-related artifact</p> Signup and view all the answers

    What is the origin of the term 'cloud' in computing?

    <p>From the symbol used to represent the Internet in specifications and mainstream documentation of Web-based architectures</p> Signup and view all the answers

    What is the primary characteristic of an IT resource in a cloud environment?

    <p>Scalable and measured</p> Signup and view all the answers

    What is the difference between an on-premise IT resource and a cloud-based IT resource?

    <p>A cloud-based resource is remotely accessible, while an on-premise resource is not</p> Signup and view all the answers

    What is the primary difference between horizontal and vertical scaling?

    <p>Horizontal scaling involves adding more resources, whereas vertical scaling involves replacing IT resources</p> Signup and view all the answers

    What is the primary disadvantage of vertical scaling in cloud environments?

    <p>It requires downtime for replacement of resources</p> Signup and view all the answers

    What is the term used to describe the replacement of an IT resource with another that has a higher capacity?

    <p>Scaling up</p> Signup and view all the answers

    What is the broad term used to describe any IT resource that is made remotely accessible via a cloud?

    <p>Cloud service</p> Signup and view all the answers

    What is the primary distinction between the term 'service' in cloud computing and other IT fields?

    <p>It is especially broad</p> Signup and view all the answers

    What is the primary objective of cloud computing?

    <p>To offer IT resources as services that encapsulate other IT resources</p> Signup and view all the answers

    What is the purpose of a Service Level Agreement (SLA)?

    <p>To express cloud service usage conditions and quality of service features</p> Signup and view all the answers

    What is a cloud service consumer?

    <p>A software program that temporarily assumes a runtime role</p> Signup and view all the answers

    What is the 'as-a-service' suffix often used to label?

    <p>Cloud service models</p> Signup and view all the answers

    What does an SLA describe, among other things?

    <p>The QoS features, behaviors, and limitations of a cloud-based service</p> Signup and view all the answers

    What is a cloud service, in general terms?

    <p>A simple Web-based software program or a remote access point</p> Signup and view all the answers

    What is the main difference between an on-premise IT resource and a cloud-based IT resource?

    <p>Location where the IT resources are stored</p> Signup and view all the answers

    How can an on-premise IT resource be converted into a cloud-based IT resource?

    <p>By moving the IT resource to the cloud</p> Signup and view all the answers

    What does horizontal scaling refer to in terms of IT resources?

    <p>Allocating or releasing resources of the same type</p> Signup and view all the answers

    Which party is referred to as the cloud provider?

    <p>Organization providing cloud-based resources</p> Signup and view all the answers

    What does vertical scaling involve?

    <p>Scalability to handle increased or decreased usage demands</p> Signup and view all the answers

    In what situation is scaling out necessary?

    <p>When increasing the number of resources with the same type</p> Signup and view all the answers

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