What Is Cloud Computing ? Flashcards
1
Q
Cloud Computing
What are the three deployment models of the cloud computing ?
A
- Private Cloud : Cloud services used by a single organization & not exposed to the public.
- Public Cloud : Owned by a thirdparty delivered by the internet.
- Hybrid Cloud : A mix of Private and Public Cloud
2
Q
Cloud Computing
What are the five characteristics of the cloud computing ?
A
- On demand self service
- Broad Network : Resources available by the network (Internet)
- Multi-tenancy & ressources pooling : Multiple custormers can share the same infrastructure, physical ressources, application with security and privacy
- Rapid elasticity and scalability
- Measured service : Pay only what you have used
3
Q
Cloud Computing
What are the six advantages of Cloud Computing ?
A
- Trade capital expense (CAPEX) for operational expense (OPEX)
- Benefit from masive economies of scale : AWS is more efficient due to large scale
- Stop guessing capacity : Scale based on actual measured usage
- Increase speed & agility
- Stop spending money running and maintaining data centers
- Go global in minutes
4
Q
Cloud Computing
What are the problems solved by Cloud ?
A
- Flexibility: change resource types when needed
- Cost-Effectiveness: pay as you go, for what you use
- Scalability: accommodate larger loads by making hardware stronger or adding additional nodes
- Elasticity: ability to scale out and scale-in when needed
- High-availability and fault-tolerance: build across data centers
- Agility: rapidly develop, test and launch software applications
5
Q
Cloud Computing
What are the types of Cloud Computing ?
A
- IaaS : Infrastructure as a Service
- Paas : Plateforme as a Service
- ## SaaS : Software as a Service
- On-premises
6
Q
Cloud Computing
How pricing is working in the cloud ?
A
Pay-as-you-go pricing model
- Compute: Pay for compute time
- Storage: Pay for data stored in the Cloud
- Data transfer OUT of the Cloud: Data transfer IN is free
