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Cloud Computing

An introduction to the principles of Cloud Computing

QuestionAnswer
What is Cloud Computing? On-demand availability of computer system resources, especially compute and storage, without direct active management by the user
What are the main components of a server? RAM - memory CPU - compute Storage - data Databases - structured data Networking - switch, router
Define Private Cloud Using cloud resources owned and operated by themselves; secure and optimised to their requirements - not publicly accessible
Define Public Cloud Using cloud resources owned and operated by a third party and rented to multiple businesses;
Define Hybrid Cloud Retaining some on-prem services while branching out into using public/private cloud services
What are the five principles of Cloud Computing? On-demand self-service Broad network access Multi-tenancy and resource pooling Rapid elasticity and scalability Measured service
How does the global infrastructure of AWS work? Regions - Availability Zones (at least 2, used to deploy infra) - Data Centres (at least 2, connected with high bandwidth network with redundant power) - Edge Locations
What might influence the geographic location a user chooses to deploy their infrastructure into? Local data protection laws Availability of services Cost of services Proximity to user-base
Define IaaS A business rents the underlying infrastructure of their application as a service Highly flexible and easy to parallel with on-prem IT
Define PaaS A business rents the underlying infrastructure and platform of their application as a service Focus on deployment and management of applications and data
Define SaaS A business rents a fully-operational application as a service
Principles of AWS Pricing PAYG Compute - pay for compute time Storage - pay for data stored in the cloud Access - pay to transfer data OUT of the cloud
What is the Shared Responsibility Model? Distribution of responsibilities for security in the cloud Customer: Responsible for security IN the cloud (user's data, applications, client/server-side encryption) AWS: Responsible for security OF the cloud (AWS-provided hardware and software)
What are the benefits of Cloud Computing? Trade capital expense (CAPEX) for operational expense (OPEX) Go global in minutes No need to predict/provision/maintain data centres High availability, scalability, redundancy
Created by: katejimh
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