Week 05 Flashcards
What is cloud computing?
A model for enabling convenient, on-demand network access to a shared pool of
configurable computing resources (e.g., networks, servers, storage, applications, and services)
What sort of configurable computing resources are shared over cloud computing?
e.g., networks, servers, storage, applications, and services
What are the essential characteristics of cloud computing?
– On-demand self-service
– Broad network access
– Resource pooling
– Rapid elasticity, scalability
– Measured service
What are the advantages of cloud computing?
A company using the cloud simply pays for the
resources they use, as they use them.
– infinite elasticity (“Scalability”)
– customers no longer need to predict traffic
- Not reliant on one machine or person
* Economic advantages
– Economies of scale by cloud providers
* Pooled hardware and personnel resources
* Bulk purchases
– No capital cost to users -PAYG
How is cloud as a growing market share in IT? What is the ratio to traditional IT?
Traditional” IT is now less than half of the market.
Give an example of Salesforce using cloud
1999: Salesforce.com marked one of the first
milestones of Cloud Computing offering solutions to organisations using Internet Infrastructure(Software as a Service)
Explain google example of using cloud
2009 Google Apps offering easy to use, flexible, custom and cheap cloud-based apps, moving from web searchs to web-based consumer apps
Name three cloud computing services
SaaS - Software as a service
PaaS - Platform as a service
Iaas - Infrastructure as a service
Explain SaaS
User can run software on cloud service.
– e.g. Google Apps, Salesforce.com,Office 365
Explain PaaS
– User can run their own software on cloud service
EX: using Virtual Machines on Google or Amazon
Explain IaaS
User can run operating systems and
comprehensive applications on a cloud platform.
Briefly, what do SaaS Providers provide?
Application
O/S emulation
Network and storage
Briefly, what do PaaS Providers provide?
O/S Emulation
Network and storage
Briefly, what do IaaS Providers provide?
Network and storage
Explain O/S Emulation
Emulation, in a software context, is the use of an application program or device to imitate the behaviour of another program or device. Common uses of emulation include: Running an operating system on a hardware platform for which it was not originally engineered.
Who are the leading cloud computing providers since 2021
Amazon Web Services – AWS are the leaders with one third of the market.
Microsoft Azure have 2nd largest market share
Google cloud is third
What are examples of cloud services we use daily and how are these funded?
Google drive, cloud email, video/music - flickr, google play, amazon cloud player
These “free” services are paid for by these companies harvesting our data.
How has shared project service like google docs changes ways of working
Can share documents.
Before, they had used e- mail attachments.
There was often confusion over who had
the most recent version
With Google Docs, both the application program and data are on Google servers providing coordination for international
collaboration.
What does ASP stand for?
Application service provider
What type of business does cloud computing most suit?
The cloud is becoming increasingly associated
with small & medium enterprises (SMEs) who cannot afford the large IT capital expenditure. They Do not have the staff to manage IT
There is little upfront cost, consumption is
billed on a PAYG basis either by utility (resources consumed,) or subscription (time-based, like a newspaper) basis
Suits SMEs who want to concentrate on their own business and not use scare capital in IT which is not their area of expertise
What are the two software delivery models on a PC
Self hosted - home built software
Or
A packaged application which you buy
Can also have a customised model which adds some programmed elements to a packaged application ex: macros in excel.
What are the four software delivery models in cloud?
Hosted home built cloud - Half build half buy
Hosted Packaged cloud - Half build half buy
Cloud platform - Half build half buy
Software as a service - Very much you buy
What are the benefits of cloud?
Cost effectiveness – Reduces capital expenditure
Flexibility – Easily scalable
Availability – Anytime, anywhere
Simplicity – Ready made solutions
Issues with cloud computing?
Reliability– Without Internet access, the application is unusable. Tech failure in the these providers affect a large number of businesses.
Control – Cloud provider may go out of business and there is a Loss of control – lock-in to proprietary software
Security - is company’s data vulnerable?
Legal complications: – Data protection?, In what jurisdiction is the cloud?
Growing concern over the market power of these large organisations
What are the enterprise SaaS vendor market leaders?
Microsoft, Salesforce,Adobe, SAP
What is Utility Computing?
Traditional utility computing, a company offloads server processing work to another company at a remote site
What is Cloud utility computing
Basically Iaas: a company offloads server processing work, this processing job is received by cloud service provider, and data is sent over the Internet to be processed. The application is not managed by the cloud provider like in Saas, only the processing power and the storage is!
Who uses cloud utility computing? Give example
Iaas Caters for the cloud providers of downstream services : Netflix uses AWS for nearly all its computing and storage needs, including databases, analytics, recommendation engines, video transcoding, and more
What does AWS stand for
Amazon web services
What is the actuarial uses of technology?
Data visualisation
Predictive models
Cloud computing
Collaborative tools
Artifical Intell/ Machine learning
Give some visualisation cloud applications
PowerBI
Tableau
Qlik
What is current situation with cloud in Ireland?
Dublin has emerged as a cloud computing hub with government support – Amazon Web Services, Microsoft, Google, IBM. There are 19 data centres running in Dublin
* Irish data centres meet requirements of EU General Data Protection Regulation (GDPR)
A moderate temperature range and few hot days suit data centres which require cooling.
What is the energy consumption of data centres like?
Use alot od electricity 2% of global demand and could grow to be almost quadruple in next 10 years. ROI its 11% of total electricity but could be up to 28% based on existing commitments.
What is the energy consumption of data centres like?
Use alot od electricity 2% of global demand and could grow to be almost quadruple in next 10 years. ROI its 11% of total electricity but could be up to 28% based on existing commitments.
