Private Infrastructure and Web Services
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Questions and Answers

What is an advantage of using cloud standards, as seen in the example of Best Bikes?

  • Increased security risks
  • Elasticity and pooled resources (correct)
  • Higher costs for infrastructure maintenance
  • Reduced compatibility with web services

    • What is the primary difference between Best Bikes' approach and cloud computing?

  • Lack of web services standards
  • Different programming languages used
  • Absence of scalability and pooled resources (correct)
  • Use of private internet instead of public internet

    • What type of cloud service would Google Mail be classified as?

  • IaaS
  • CDN
  • PaaS
  • SaaS (correct)

    • What is a key characteristic of IaaS?

    <p>Provides virtualized computing resources over the internet</p> Signup and view all the answers

    Which of the following is NOT a cloud deployment model?

    <p>Content Delivery Network</p> Signup and view all the answers

    What is the primary benefit of using SaaS services like Office 365?

    <p>Access to software applications over the internet</p> Signup and view all the answers

    What is the primary benefit of using PaaS?

    <p>A platform for developing and deploying applications</p> Signup and view all the answers

    What is the primary difference between PaaS and IaaS?

    <p>PaaS provides a platform for developing applications, while IaaS provides access to software applications</p> Signup and view all the answers

    What is a major factor contributing to the growth of cloud computing?

    <p>Cheap processors and essentially free data communication and data storage</p> Signup and view all the answers

    When does the cloud not make sense for organizations?

    <p>When law or standard industry practice require physical control or possession of the data</p> Signup and view all the answers

    What is the most popular way organizations use the cloud?

    <p>Use cloud service</p> Signup and view all the answers

    What are the three fundamental cloud types?

    <p>IaaS, PaaS, SaaS</p> Signup and view all the answers

    What is provided in an IaaS?

    <p>Bare server computer, data storage, network, and virtualization</p> Signup and view all the answers

    What is an example of IaaS?

    <p>Rackspace Inc.</p> Signup and view all the answers

    What is hosted in a PaaS?

    <p>Computers with an operating system, runtime environment, and middleware</p> Signup and view all the answers

    What is a benefit of IaaS over traditional on-premises hosting?

    <p>Substantial cost savings</p> Signup and view all the answers

    What is the primary role of middleware in a Platform as a Service (PaaS) environment?

    <p>To provide a unified service by bridging different applications</p> Signup and view all the answers

    What type of cloud deployment model is Microsoft Windows Azure an example of?

    <p>Platform as a Service (PaaS)</p> Signup and view all the answers

    What is the primary benefit of using a Content Delivery Network (CDN)?

    <p>Reduced latency</p> Signup and view all the answers

    Which of the following is an example of a Software as a Service (SaaS) provider?

    <p>Salesforce.com</p> Signup and view all the answers

    What is the primary difference between a traditional server and a Content Delivery Network (CDN)?

    <p>Latency</p> Signup and view all the answers

    What type of cloud deployment model is Oracle On Demand an example of?

    <p>Platform as a Service (PaaS)</p> Signup and view all the answers

    What is the primary role of a Platform as a Service (PaaS) provider?

    <p>To host the customer's applications and provide an operating system and runtime environment</p> Signup and view all the answers

    What type of cloud deployment model is Amazon EC2 an example of?

    <p>Infrastructure as a Service (IaaS)</p> Signup and view all the answers

    Study Notes

    Using Web Services Internally

    • Best Bikes runs its own servers on its own infrastructure, setting up a private internet within the company.
    • The company writes applications for processing inventory using Web services standards.
    • Application users access the inventory Web services using JavaScript.

    Cloud Types

    • Three fundamental Cloud Types:
      • Infrastructure as a Service (IaaS)
      • Platform as a Service (PaaS)
      • Software as a Service (SaaS)

    Infrastructure as a Service (IaaS)

    • Provides bare server computer, data storage, network, and virtualization hosted by the cloud.
    • Examples:
      • Rackspace Inc. provides hardware for customers to load specific operating systems.
      • Amazon's Simple Storage Service provides unlimited, reliable data storage in the cloud.
    • The cost savings of IaaS over traditional on-premises hosting can be substantial.

    Platform as a Service (PaaS)

    • Hosted computers with an operating system, runtime environment, and middleware provided by vendors.
    • Middleware bridges different applications to provide unified service.
    • Examples:
      • Microsoft Windows Azure provides servers installed with Windows Server.
      • Microsoft SQL Azure provides a host with Windows Server and SQL Server.
      • Oracle On Demand provides a hosted server with Oracle Database.
      • Amazon EC2 provides servers with Windows Server or Linux installed.

    Software as a Service (SaaS)

    • Provides hardware infrastructure, operating system, application programs, and databases.
    • Examples:
      • Salesforce.com provides hardware and programs for customer and sales tracking.
      • Google Drive, OneDrive, Office 365, Exchange, Skype for Business, SharePoint applications.

    Content Delivery Network (CDN)

    • A system of distributed servers that deliver web pages and other web content.
    • Stores user data in many different geographical locations and makes them available on demand.
    • Minimizes latency.
    • A specialized type of PaaS, in its own category.

    When to Use the Cloud

    • When law or standard industry practice do not require physical control or possession of the data.
    • Organizations can use the cloud in several different ways, with the most popular way being using cloud services.

    Benefits of the Cloud

    • Cheap processors, essentially free data communication, and data storage.
    • Virtualization technology enables flexible, standardized processing capabilities.
    • Internet-based standards enable flexible, standardized processing capabilities.

    When Not to Use the Cloud

    • When law or standard industry practice require physical control or possession of the data.
    • Examples: Financial institutions legally required to maintain physical control over their data.

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    Related Documents

    COMP1750_Week6_Lecture_v3 (iLearn).pdf

    Description

    Best Bikes runs its own servers on its own infrastructure and sets up a private internet. Learn about using web services internally with this example.

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