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Questions and Answers
What is a key characteristic of cloud computing that allows users to provision resources without human interaction?
Which feature of cloud computing allows multiple consumers to share resources dynamically?
In cloud computing, what does rapid elasticity refer to?
How is resource usage controlled and optimized in cloud computing systems?
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What does broad network access in cloud computing imply?
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Which option best describes the concept of measured service in cloud computing?
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What is the significance of resource pooling in cloud computing?
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Which of the following describes a benefit of rapid elasticity in cloud computing?
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What is one significant benefit of cloud computing regarding device usage?
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Which service model provides virtualized computing resources over the Internet?
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What assurance do cloud providers typically offer to minimize downtime?
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How does cloud computing support global collaboration?
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What type of services does IaaS include?
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Which of the following is NOT considered a benefit of cloud computing?
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Which cloud service model is best suited for hosting software applications?
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What characteristic is essential for cloud computing to enable remote work?
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What is a primary difference between traditional computing and cloud computing regarding cost management?
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How does cloud computing enhance scalability compared to traditional computing?
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What is a cost-saving feature of cloud computing?
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Which of the following statements accurately reflects a benefit of cloud computing?
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What is a result of the multi-tenant model used by cloud providers?
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Which statement best describes the resource management capabilities of cloud computing?
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What is NOT an advantage of cloud computing over traditional computing?
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Which factor contributes to cloud computing's flexibility?
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What is a key advantage of using a community cloud?
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Which scenario best represents a use case for a community cloud?
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What is a challenge associated with implementing a community cloud?
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In which situation would a community cloud be especially beneficial?
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Which of the following is NOT a feature of a community cloud?
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What is often required among organizations using a community cloud?
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Which of the following is a real-world example of a community cloud?
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Which disadvantage can be identified with community clouds?
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What is a primary benefit of using a hybrid cloud model?
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Which characteristic of hybrid cloud enables the movement of applications and data as needed?
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In what scenario is a hybrid cloud particularly advantageous?
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How does a hybrid cloud model provide cost-effectiveness for organizations?
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What is one of the use cases for employing a hybrid cloud strategy?
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Which of the following best describes the flexibility characteristic of a hybrid cloud?
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Which statement is true about data sovereignty in the context of hybrid cloud?
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Which of the following does NOT typically characterize a hybrid cloud?
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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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