Cloud Concepts (Domain 1)

Cloud computing definition

On-demand delivery of compute, storage, databases, and other IT resources over the internet with pay-as-you-go pricing,

Six advantages of cloud computing

Trade capital expense for variable expense; benefit from massive economies of scale; stop guessing capacity; increase sp

CapEx vs OpEx in the cloud

Cloud shifts spending from capital expenditure (upfront purchase of servers/hardware) to operational expenditure (ongoin

IaaS, PaaS, and SaaS

IaaS provides fundamental building blocks (networking, compute, storage) such as EC2; PaaS removes infrastructure manage

Cloud deployment models

Cloud-based (all-in on the cloud), on-premises/private cloud (using virtualization in your own data center), and hybrid