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What is a key characteristic of cloud computing that allows users to provision resources without human interaction?

  • Measured service
  • On-demand self-service (correct)
  • Rapid elasticity
  • Resource pooling

    • Which feature of cloud computing allows multiple consumers to share resources dynamically?

  • Resource pooling (correct)
  • Rapid elasticity
  • Broad network access
  • On-demand self-service

    • In cloud computing, what does rapid elasticity refer to?

  • Automatic resource optimization
  • Availability of services across multiple devices
  • Dynamic scaling of resources based on demand (correct)
  • Provisioning of services without human intervention

    • How is resource usage controlled and optimized in cloud computing systems?

    <p>By leveraging metering capabilities</p> Signup and view all the answers

    What does broad network access in cloud computing imply?

    <p>Services are available through standard mechanisms across various devices</p> Signup and view all the answers

    Which option best describes the concept of measured service in cloud computing?

    <p>Quantifying resource usage for billing and optimization</p> Signup and view all the answers

    What is the significance of resource pooling in cloud computing?

    <p>Resources are dynamically assigned and reassigned to meet demand</p> Signup and view all the answers

    Which of the following describes a benefit of rapid elasticity in cloud computing?

    <p>Organizations can reduce resource allocation during low usage periods</p> Signup and view all the answers

    What is one significant benefit of cloud computing regarding device usage?

    <p>Flexibility to work from any device</p> Signup and view all the answers

    Which service model provides virtualized computing resources over the Internet?

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

    What assurance do cloud providers typically offer to minimize downtime?

    <p>Service level agreements</p> Signup and view all the answers

    How does cloud computing support global collaboration?

    <p>Data and applications are accessible globally with internet</p> Signup and view all the answers

    What type of services does IaaS include?

    <p>Virtual server space and network connections</p> Signup and view all the answers

    Which of the following is NOT considered a benefit of cloud computing?

    <p>Permanent data loss risk</p> Signup and view all the answers

    Which cloud service model is best suited for hosting software applications?

    <p>Software as a Service (SaaS)</p> Signup and view all the answers

    What characteristic is essential for cloud computing to enable remote work?

    <p>Internet connectivity</p> Signup and view all the answers

    What is a primary difference between traditional computing and cloud computing regarding cost management?

    <p>Cloud computing shifts costs from capital expenditure to operational expenses.</p> Signup and view all the answers

    How does cloud computing enhance scalability compared to traditional computing?

    <p>By allowing immediate scaling of resources based on demand.</p> Signup and view all the answers

    What is a cost-saving feature of cloud computing?

    <p>Pay-as-you-use model leading to payment only for consumed resources.</p> Signup and view all the answers

    Which of the following statements accurately reflects a benefit of cloud computing?

    <p>Accessibility from any location is a key advantage of cloud computing.</p> Signup and view all the answers

    What is a result of the multi-tenant model used by cloud providers?

    <p>Maximized resource usage and efficiency.</p> Signup and view all the answers

    Which statement best describes the resource management capabilities of cloud computing?

    <p>Cloud computing allows quick adjustments to resource allocation based on demand.</p> Signup and view all the answers

    What is NOT an advantage of cloud computing over traditional computing?

    <p>Greater reliance on physical infrastructure.</p> Signup and view all the answers

    Which factor contributes to cloud computing's flexibility?

    <p>Ability to access services from any internet-enabled device.</p> Signup and view all the answers

    What is a key advantage of using a community cloud?

    <p>Cost savings through shared resources</p> Signup and view all the answers

    Which scenario best represents a use case for a community cloud?

    <p>Multiple hospitals sharing patient data securely</p> Signup and view all the answers

    What is a challenge associated with implementing a community cloud?

    <p>Limited customization compared to private clouds</p> Signup and view all the answers

    In which situation would a community cloud be especially beneficial?

    <p>Sectors requiring stringent regulatory compliance</p> Signup and view all the answers

    Which of the following is NOT a feature of a community cloud?

    <p>Exclusive service to a single entity</p> Signup and view all the answers

    What is often required among organizations using a community cloud?

    <p>Complex governance and policy enforcement</p> Signup and view all the answers

    Which of the following is a real-world example of a community cloud?

    <p>Universities collaborating on research via shared cloud services</p> Signup and view all the answers

    Which disadvantage can be identified with community clouds?

    <p>Potential complexity in governance</p> Signup and view all the answers

    What is a primary benefit of using a hybrid cloud model?

    <p>It combines private and public cloud services for better flexibility.</p> Signup and view all the answers

    Which characteristic of hybrid cloud enables the movement of applications and data as needed?

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

    In what scenario is a hybrid cloud particularly advantageous?

    <p>For managing seasonal workloads with varying demand.</p> Signup and view all the answers

    How does a hybrid cloud model provide cost-effectiveness for organizations?

    <p>By enabling the retention of critical data on-premises and using public cloud for less sensitive tasks.</p> Signup and view all the answers

    What is one of the use cases for employing a hybrid cloud strategy?

    <p>Testing and developing new applications in public cloud before production.</p> Signup and view all the answers

    Which of the following best describes the flexibility characteristic of a hybrid cloud?

    <p>It allows scaling on-premises infrastructure to public cloud during high demand.</p> Signup and view all the answers

    Which statement is true about data sovereignty in the context of hybrid cloud?

    <p>Organizations can store sensitive data in private clouds while using public clouds for compliance.</p> Signup and view all the answers

    Which of the following does NOT typically characterize a hybrid cloud?

    <p>Strict dependency on public cloud for all resources.</p> Signup and view all the answers

    Study Notes

    Comparison with Traditional Computing

    • Traditional computing requires significant upfront capital for hardware and software, along with ongoing maintenance.
    • Cloud computing operates on a pay-as-you-go basis, lowering upfront costs and converting IT expenses from capital to operational.
    • Scaling resources in traditional setups is complex and time-consuming, requiring physical upgrades.
    • Cloud computing allows immediate scaling up or down based on demand.
    • Greater flexibility and accessibility are offered through cloud computing, as services can be accessed from any internet-connected device.

    Benefits of Cloud Computing

    • Cost Efficiency: Eliminates the need for businesses to invest in equipment/data centers, shifting costs from capital to operational expenditures.
    • Pay-As-You-Go Model: Organizations only pay for the resources they consume, reducing costs related to unused infrastructure.
    • Scalability: Firms can swiftly adjust IT resources in response to business demands with minimal investment.
    • Efficient Resource Management: Cloud providers use a multi-tenant model to optimize resource usage, making businesses more agile.

    What is Cloud Computing?

    • Cloud computing allows users to access computing resources over the internet, facilitating application management and data storage without physical infrastructure.

    Core Characteristics of Cloud Computing

    • On-Demand Self-Service: Users provision resources without needing direct interaction with service providers.
    • Broad Network Access: Services are available on various platforms, enhancing accessibility.
    • Resource Pooling: Provider resources are dynamically allocated among multiple users based on demand.
    • Rapid Elasticity: Capabilities can be quickly scaled up or down to meet fluctuating requirements.
    • Measured Service: Resource usage is automatically controlled and optimized based on metering capabilities.

    Accessibility

    • Cloud computing provides global accessibility, allowing users to work remotely and collaborate internationally.

    Additional Benefits of Cloud Computing

    • Device Diversity: Services are accessible from any device, increasing flexibility for users.
    • Disaster Recovery: Cloud solutions provide robust backup and recovery options to protect against data loss.
    • Reduced Downtime: Service level agreements often guarantee uptime and rapid data recovery, minimizing service interruptions.

    Cloud Service Models - Overview

    • Cloud computing features various service models catering to diverse business needs, impacting provider and customer responsibilities.
    • Three main service models:
      • Infrastructure as a Service (IaaS)
      • Platform as a Service (PaaS)
      • Software as a Service (SaaS)

    Cloud Service Models - IaaS

    • IaaS delivers virtualized computing resources over the internet, allowing users to install necessary platforms and applications.
    • Includes virtual server space, bandwidth, IP addresses, and load balancers.

    Cloud Deployment Models – Hybrid Cloud

    • Hybrid cloud integrates private and public cloud services, enabling data sharing and offering increased flexibility and deployment options.
    • Allows organizations to utilize a private cloud for sensitive data and a public cloud for less sensitive information.

    Key Characteristics of Hybrid Cloud

    • Interoperability: Facilitates communication between public and private clouds.
    • Flexibility and Scalability: On-premises infrastructure can be scaled to the public cloud for excess capacity.
    • Cost-Effectiveness: Organizations can maintain security for sensitive data while leveraging public cloud efficiencies for less critical workloads.

    Use Cases for Hybrid Cloud

    • Seasonal Workloads: Scale resources based on fluctuating business demands.
    • Data Sovereignty: Comply with regulations by storing sensitive data in private clouds while using public clouds for other workloads.
    • Innovation and Speed: Develop and test applications in public clouds before full deployment in private environments.

    Cloud Deployment Models – Community Cloud

    • Community clouds enable shared resources among organizations with common objectives, supporting collaborative projects.

    Advantages and Challenges of Community Cloud

    • Advantages: Cost savings, enhanced security, and collaborative opportunities.
    • Challenges: Limited customization, governance complexities, and a need for solid collaboration among participants.
    • Example: Universities collaborating on a shared cloud for research and educational purposes.

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