Exploring Cloud Computing Fundamentals

What is the primary characteristic of cloud computing that allows users to access resources over the internet?

• Scalability

• On-demand self-service

• Resource pooling

• Broad network access

Answer explanation

The primary characteristic of cloud computing that enables users to access resources over the internet is 'Broad network access'. This feature allows services to be accessed from various devices via the internet.

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DOK Level 1: Recall

Which of the following is a type of cloud model?

• Public Cloud

• Virtual Cloud

• Hybrid Cloud

• Both A and C

Answer explanation

Public Cloud and Hybrid Cloud are both recognized types of cloud models. Public Cloud refers to services offered over the public internet, while Hybrid Cloud combines both public and private cloud elements.

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DOK Level 1: Recall

Explain how desktop virtualization can benefit a business in terms of cost efficiency.

• It reduces the need for physical hardware, thus lowering maintenance costs.

• It requires more physical servers, increasing initial investment.

• It increases the need for IT staff, raising operational costs.

• It limits access to applications, reducing productivity.

Answer explanation

Desktop virtualization reduces the need for physical hardware, which leads to lower maintenance costs. This cost efficiency allows businesses to allocate resources more effectively and invest in other areas.

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DOK Level 2: Skill/Concept

Which cloud computing characteristic ensures that resources can be elastically provisioned and released to scale rapidly outward and inward commensurate with demand?

• Measured Service

• Resource Pooling

• Rapid Elasticity

• On-demand Self-service

Answer explanation

Rapid Elasticity is the cloud computing characteristic that allows resources to be quickly provisioned and released, enabling scaling up or down based on demand. This ensures flexibility and responsiveness to changing workloads.

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DOK Level 1: Recall

Describe a scenario where a hybrid cloud model would be more beneficial than a public or private cloud model.

• A company with highly sensitive data that needs to be stored securely but also requires scalable resources for less sensitive operations.

• A small startup with a limited budget and resources.

• A large corporation with no need for scalability.

• An individual user looking for personal storage solutions.

Answer explanation

A hybrid cloud model is ideal for a company with sensitive data needing secure storage while also requiring scalable resources for less sensitive operations, combining the benefits of both public and private clouds.

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DOK Level 2: Skill/Concept

What is the role of virtualization in cloud computing?

• It allows multiple operating systems to run on a single physical machine.

• It increases the physical space required for data centers.

• It decreases the efficiency of resource utilization.

• It limits the scalability of cloud services.

Answer explanation

Virtualization enables multiple operating systems to operate on a single physical machine, optimizing resource use and enhancing flexibility in cloud computing. This is crucial for efficient cloud service delivery.

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DOK Level 1: Recall

Analyze the impact of cloud computing on data security and privacy. What are some potential risks and how can they be mitigated?

• Cloud computing eliminates all data security risks.

• Data breaches and unauthorized access are potential risks; they can be mitigated by implementing strong encryption and access controls.

• Cloud computing inherently provides better security than on-premises solutions.

• There are no privacy concerns with cloud computing.

Answer explanation

The correct choice highlights that cloud computing poses risks like data breaches and unauthorized access, which can be mitigated through strong encryption and access controls, ensuring better data security and privacy.

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DOK Level 3: Strategic Thinking

Which of the following is NOT a characteristic of cloud computing?

• Broad Network Access

• Resource Pooling

• Limited Scalability

• Measured Service

Answer explanation

Limited Scalability is NOT a characteristic of cloud computing. In fact, cloud computing is known for its high scalability, allowing resources to be adjusted easily based on demand.

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DOK Level 1: Recall

Evaluate the strategic importance of desktop virtualization in a remote work environment.

• It provides no significant advantage over traditional desktops.

• It allows employees to access their work environment from any location, enhancing flexibility and productivity.

• It increases the dependency on physical office space.

• It reduces the need for data security measures.

Answer explanation

Desktop virtualization enables employees to access their work environment from any location, which significantly enhances flexibility and productivity, making it a strategic asset in remote work settings.

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DOK Level 3: Strategic Thinking

What is the main advantage of using a private cloud over a public cloud?

• Lower cost

• Greater control over data and security

• Unlimited scalability

• Easier access for the general public

Answer explanation

The main advantage of a private cloud is greater control over data and security. Organizations can customize their infrastructure and policies to meet specific security and compliance requirements, unlike in a public cloud.

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DOK Level 2: Skill/Concept