( (4) (IN PROGRESS - CORE 1) CompTIA A+ 220-1101 Study Guide (copy)

Cloud Models

• Use only required resources.

Infrastructure as a service (laaS)

• Data out there, but within your control.

Software as a service (SaaS)

• No local installation and your data is out there. Google Mail, Microsoft 365, etc.

Platform as a service (PaaS)

• No servers

• Trained security professionals watching your stuff.

• You don’t have direct control. You handle development, not the platform.

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Internal Cloud

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• No resources shared.

• Build your own.

• Pay everything up front.

External Cloud

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• Share resources publicly.

• Metered or up front cost on usage or services your using.

• Instant resource provisioning.

• File synchronization.

• Always available.

Metered.

• Cost to upload, store, download.

Non-metered.

• Pay for block of storage.

• No cost upload or download.

Desktop as Service (DaaS)

• Virtual Desktop Infrastructure.

• Big network requirement.

  (4.1)

Client-Side Virtualization

• Windows MacOS Linux

  • Save time and resources

  • Run multiple at same time

    (4.2)

  • Try some code, break some code.

  • 3rd parties can be dangerous.