Cloud Services Flashcards

1
Q

What is cloud computing?

A

The practice of using a network of remote servers hosted on the Internet for data storage, management, and processing.

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2
Q

What does high availability mean in the context of cloud computing?

A

• Services experience minimal downtime.
• Availability is measured as the percentage of uptime versus downtime.

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3
Q

Define scalability in cloud computing.

A

The ability to increase system capacity either by adding resources (horizontal scaling) or enhancing existing ones (vertical scaling).

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4
Q

What is vertical scaling (scaling up)?

A

Increasing the power or capacity of existing resources, such as upgrading a server’s CPU or memory.

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5
Q

What is horizontal scaling (scaling out)?

A

Adding more resources, such as additional servers, to distribute and manage an increased load.

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6
Q

What is rapid elasticity in cloud computing?

A

The ability to quickly scale resources up or down to accommodate demand changes in real time.

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7
Q

What is metered utilization in the cloud?

A

A billing model where users are charged based on their actual usage of cloud services.

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8
Q

How do measured services differ from metered utilization?

A

• Metered utilization: Charges based on “pay-per-use.”
• Measured services: Charges based on detailed resource consumption metrics, like bandwidth or storage.

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9
Q

What are shared resources in cloud computing?

A

The pooling of hardware resources, such as servers, to minimize costs and maximize efficiency for cloud providers.

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10
Q

What are the two key scaling methods in the cloud, and how do they differ?

A

• Vertical scaling (scaling up): Enhancing the power of existing resources.
• Horizontal scaling (scaling out): Adding more resources to handle increased demand.

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11
Q

What is a public cloud?

A

A cloud model where systems and users interact with devices over public networks, such as the Internet. Services are hosted by third-party providers and shared across multiple organizations.

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12
Q

What is a private cloud?

A

A cloud model where systems and users have exclusive access to resources within a single organization or private network. Offers enhanced security and control.

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13
Q

Define a hybrid cloud.

A

A combination of public and private clouds. Allows data and applications to move between the two for greater flexibility and deployment options.

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14
Q

What is a community cloud?

A

A cloud model where infrastructure is shared between organizations with common interests or concerns (e.g., security, compliance). Often used in industries like healthcare or finance for collaborative efforts.

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15
Q

What is the primary advantage of a public cloud?

A

Accessibility and scalability, as resources are shared and managed by third-party providers.

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16
Q

What is the main benefit of a private cloud?

A

Enhanced security, control, and customization tailored to the needs of a single organization.

17
Q

Why would an organization choose a hybrid cloud model?

A

To leverage the scalability of the public cloud while maintaining the control and security of a private cloud for sensitive data.

18
Q

What are the key features of a community cloud?

A

Shared infrastructure between organizations with similar goals or regulations. Provides cost savings and collaborative opportunities while maintaining specific compliance standards.

19
Q

Cloud Service Model

A