cloud computing defs. and CVs Flashcards
Private
– Your own virtualized local data center
* Public
– Available to everyone over the Internet
* Hybrid
– A mix of public and private
* Community
– Several organizations share the same resources
Cloud deployment models
Outsource your equipment
* You’re still responsible for the management
– And for the security
* Your data is out there, but more within your control
– Web server provider
Infrastructure as a service (IaaS)
Sometimes called Hardware as a Service (HaaS)
On-demand software
– No local installation
– Why manage your own email distribution?
Or payroll?
* Central management of data and applications
– Your data is out there
* A complete application offering
– No development work required
– Google Mail, Microsoft 365
Software as a service (SaaS)
No servers, no software, no maintenance team, no HVAC
– Someone else handles the platform,
you handle the development
* You don’t have direct control of the data,
people, or infrastructure
– Trained security professionals are watching
– Choose carefully
* Put the building blocks together
– Develop your app from what’s available on the platform
Platform as a service (PaaS)
Internal cloud
– No resources are shared
– Build your own cloud
– Pay for everything up front
– No ongoing costs
Shared resources
Share resources with a public cloud
– Underlying infrastructure owned by a third-party
– Cost may be metered or up-front
External cloud
You pay for what you use
– Cost to upload
– Cost to store
– Cost to download
Metered cloud services
You pay for a block of storage
– No cost to upload
– No cost to download
Non-metered
Scale up and scale down as needed
– Seamless to everyone
– The cloud enables instant resource provisioning
Rapid elasticity
Systems are always available
– Redundancy provides availability
High availability
Local device is a keyboard, mouse, and screen.No huge memory or CPU needs Big network requirement
Desktop as a Service DaaS
