Module 1 Flashcards
What are the three cloud services?
IAAS, PAAS, SAAS
What are the three cloud models?
Private, Hybrid and Public
Explain the shared responsibility model.
The responsibility of the CSP and customer changes depending on the type of cloud service that is being used.
whats the SRM like in IAAS
CSP provides networking, storage and compute. Manges staff, hardware and datacenter. Example, Azure virtual machines
whats the SRM like in PAAS
Customer is responsible for deployment and management of apps. CSP manages Runtime, middleware and OS. Example, Azure SQL Database.
whats the SRM like in SAAS
Customer just configures features.
Example, office365
benefits of cloud computing
Cost-effective, global, secure, scalable, elastic and always current
Describe public cloud
Running everything on service providers hardware.
Describe private cloud
cloud computing in on premise datacenters
what are the advantages of private cloud?
Legacy support, control and compliance.
Describe hybrid cloud
Combines private and public cloud. Biggest advantage is flexibility. You can run your app on premise or on service providers hardware.
Scalability
The ability of a system to handle growth of users or work.
Elasticity
The ability of a system to automatically grow and shrink based on app demand
Agility
The ability to react quickly to changes in demand without manual intervention.
Economies of scale
The ability to do things more efficiently or at a lower cost per unit when operating at a larger scale.
capital expenditure (apEx)
spending of money on physical infrastructure up front
Operational Expenditure (OpEx)
spending money on services or products now and being billed as you go.
Consumption-based model
Pay for what you use, typically based on units of time or capacity
Fault Tolerance
The ability of a system to handle faults in a service like power, network or hardware failures. Component-level failures
High Availability
The ability to keep services up and running for long periods of time. Service level failures.
Disaster recovery
The ability to recover from an event which has taken down a cloud service.
