Cloud Computing Characteristics
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Questions and Answers

What is the main characteristic of a distributed system?

  • Components communicate and coordinate their actions only by passing messages. (correct)
  • It is a type of parallel computing.
  • Components are located on a single computer.
  • It is a type of grid computing.

    • What is the term for the concept of pooling resources such as CPUs, disks, and networks?

  • Virtualization
  • Distributed Systems
  • Cloud Computing
  • Pool of Resources (correct)

    • Which of the following is NOT a computing paradigm?

  • Internet of Services and Things
  • Artificial Intelligence (correct)
  • Parallel Computing
  • Web Computing

    • What was the significant change in IT priorities according to ESG's 2011 survey?

    <p>Increased importance of cloud computing services.</p> Signup and view all the answers

    What is the term for the concept of providing resources such as computing power, storage, and networks over the internet?

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

    What is the forecast for IT spending on cloud computing according to Gartner?

    <p>Billions of U.S. dollars.</p> Signup and view all the answers

    What is the total market size of Cloud Services in 2021?

    <p>302.5 Billion US$</p> Signup and view all the answers

    Which of the following Cloud Services had the highest growth rate from 2019 to 2020?

    <p>Cloud System Infrastructure Services (IaaS)</p> Signup and view all the answers

    What is the estimated total market size of Cloud Services in 2023?

    <p>591 Billion US$</p> Signup and view all the answers

    What is the characteristic of Cloud Computing that enables rapid provisioning and release of resources?

    <p>On-demand network access</p> Signup and view all the answers

    What type of Cloud Service involves the provision of applications and software over the internet?

    <p>Cloud Application Services (SaaS)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Cloud Computing?

    <p>Convenient service provider interaction</p> Signup and view all the answers

    What is the primary advantage of Cloud Computing?

    <p>Convenient, on-demand network access</p> Signup and view all the answers

    Which of the following Cloud Services involves the provision of infrastructure, such as servers and storage, over the internet?

    <p>Cloud System Infrastructure Services (IaaS)</p> Signup and view all the answers

    What is the primary characteristic of Resources Pooling in cloud computing?

    <p>Sharing of resources by multiple tenants</p> Signup and view all the answers

    Which of the following service models provides a solution stack as a service?

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

    What is the primary benefit of Measured Service in cloud computing?

    <p>Pay-as-you-go service with metering capability</p> Signup and view all the answers

    What is the primary characteristic of Rapid Elasticity in cloud computing?

    <p>Resources can scale up or down rapidly</p> Signup and view all the answers

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

    <p>Google Docs</p> Signup and view all the answers

    What is the primary benefit of Database as a Service (DBaaS)?

    <p>Application owners do not have to maintain the database themselves</p> Signup and view all the answers

    What is the primary characteristic of On-demand Self-service in cloud computing?

    <p>Unilateral provision of computing capabilities as needed</p> Signup and view all the answers

    What is the primary benefit of MongoDB Atlas?

    <p>Flexible, affordable, and scalable database management</p> Signup and view all the answers

    What is the primary benefit of using a DBaaS platform?

    <p>No installation is needed</p> Signup and view all the answers

    Which of the following is a key advantage of MongoDB?

    <p>Flexible document schemas</p> Signup and view all the answers

    What is the primary difference between a public cloud and a private cloud?

    <p>Ownership and management</p> Signup and view all the answers

    Which of the following cloud deployment models involves creating solutions based on more than one model?

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

    What is the primary advantage of the pay-per-use cost model for startups and SMEs?

    <p>Reduced upfront costs</p> Signup and view all the answers

    Which of the following is a key benefit of using cloud services for rapid prototyping?

    <p>Faster time-to-market</p> Signup and view all the answers

    What is the primary concern when outsourcing data to a cloud service?

    <p>Security and data protection</p> Signup and view all the answers

    Which of the following cloud services is particularly well-suited for startups and SMEs?

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

    What is a major concern for companies when considering cloud computing?

    <p>Security, privacy, and legal issues</p> Signup and view all the answers

    What is a characteristic of cloud services?

    <p>Continually developed and updated</p> Signup and view all the answers

    What is a consequence of moving applications to the cloud?

    <p>Large internal changes are often necessary</p> Signup and view all the answers

    What is a benefit of parallelization in cloud computing?

    <p>Better performance for 1 hour on 100 virtual CPUs</p> Signup and view all the answers

    What is a motivation for cloud computing in the future?

    <p>Mobile interactive applications</p> Signup and view all the answers

    What is a challenge for users/developers when using cloud services?

    <p>Outage of cloud services and cancellation of services are possible risks</p> Signup and view all the answers

    What is a characteristic of cloud computing contracts?

    <p>Short change cycles, about 30 days</p> Signup and view all the answers

    What is a benefit of cloud computing for the Internet of Things (IoT)?

    <p>Support of low-performant devices by power from the cloud</p> Signup and view all the answers

    Study Notes

    Cloud Computing Providers

    • Well-known commercial cloud providers include Amazon Web Services, Microsoft Azure, Digital Ocean, Google Compute Engine, OpenStack, and Rackspace.

    Virtualization and Cloud Computing

    • Distributed systems started the concept of cloud computing.
    • A distributed system is one where components located at networked computers communicate and coordinate their actions only by passing messages.
    • The largest supercomputer in the world is the Internet, which is a pool of resources including CPUs, disks, networks, knowledge, and more.

    Cloud Computing Hype

    • There has been a significant shift in IT priorities with an increased focus on cloud computing services since 2013/2014.
    • IT spending on cloud computing is expected to grow, with estimates suggesting it will exceed $591 billion by 2023.

    Definition of Cloud Computing

    • Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction.

    Five Characteristics of Cloud Computing

    • Resources Pooling: Resources are shared by multiple tenants, providing a sense of location independence.
    • Rapid Elasticity: Resources can scale up or down rapidly and can be provisioned and de-provisioned automatically.
    • On-demand Self-service: Unilateral provision of computing capabilities as needed, without requiring human intervention.
    • Broad Network Access: Access to cloud resources from anywhere, using standard mechanisms.
    • Measured Service: Pay-as-you-go service with metering capability.

    Service Models

    • Infrastructure as a Service (IaaS): Provision of computer infrastructure as a service.
    • Platform as a Service (PaaS): Solution stack as a service, providing computational resources via a platform.
    • Software as a Service (SaaS): Model of software deployment where a provider licenses an application to consumers for use as a service on demand.

    Cloud Database

    • A Cloud Database is a database that runs on a cloud computing platform, providing access as a service.
    • Examples include MongoDB Atlas, a fully managed cloud platform, and DBaaS.

    Deployment Models

    • Public Cloud: Cloud solution used by anyone.
    • Private Cloud: Cloud solution owned by the organization running the cloud.
    • Hybrid Cloud: Creating solutions based on more than one of the above models.
    • Community Cloud: Cloud solution used by a group of organizations.

    Influencing IT Aspects

    • Many IT aspects are influenced by cloud computing, including cost, security, and data management.

    Summarizing Promises of the Cloud

    • Rapid scalability and flexibility
    • Cost efficiency
    • Access to advanced technology
    • Ability to focus on core business
    • Reduced upfront costs

    Cloud for Startup/SME and Rapid Prototyping

    • Cloud services are convenient for startups and SMEs, offering a pay-per-use cost model and eliminating the need for costly upfront investments.
    • Allows businesses to focus on core business, with computer center services outsourced.
    • However, data outsourcing can be a concern due to security, privacy, and legal issues.

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    Description

    Learn about the five essential characteristics of cloud computing, including resource pooling, and how it promotes availability.

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