Week 05

Question 1

What is cloud computing?

Answer 1

Cloud computing is a model for enabling convenient, on-demand network access to a set of pooled configurable computing resources delivered over the Internet. Cloud computing is now a technology which has reached a critical mass and is now in a rapid phase of growth

Question 2

What sort of configurable computing resources are shared over cloud computing?

Answer 2

e.g., networks, servers, storage, applications, and services

Question 3

What are the essential characteristics of cloud computing?

Answer 3

– On-demand self-service
– Broad network access
– Resource pooling
– Rapid elasticity, scalability
– Measured service

Question 4

What are the advantages of cloud computing?

Answer 4

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
* Economic advantages
– Economies of scale by cloud providers
* Pooled hardware and personnel resources
* Bulk purchases
– No capital cost to users -Pay as you go each month, comparable to electricity charges

Question 5

What is a Public cloud?

Answer 5

Traditional mainstream sense, resources are dynamically provisioned
to the general public on a fine-grained, self-service basis over the Internet

Question 6

What is a community cloud?

Answer 6

Shares infrastructure between several organizations from a specific community with common concerns e.g. universities. The costs are spread over fewer users than a public cloud.

Question 7

What is a hydrif cloud?

Answer 7

Composition of two or more clouds (private, community, or public) that remain unique entities but are bound together, offering the benefits of multiple deployment models

Question 8

What is a private cloud?

Answer 8

Single organisation, not a great model

Question 9

How is cloud as a growing market share in IT? What is the ratio to traditional IT?

Answer 9

Traditional” IT is now less than half of the market.

Question 10

Give an example of Salesforce using cloud

Answer 10

1999: Salesforce.com marked one of the first
milestones of Cloud Computing offering solutions to organisations using Internet Infrastructure(Software as a Service) - Salesforce was the market leader in Internet distributed service.

Question 11

Explain google example of using cloud

Answer 11

2009 Google Apps offering easy to use, flexible, custom and cheap cloud-based apps, moving from web searchs to web-based consumer apps

Question 12

Name three cloud computing services

Answer 12

SaaS - Software as a service
PaaS - Platform as a service
Iaas - Infrastructure as a service

Question 13

Explain SaaS

Answer 13

User can run software on cloud service. Basically consumer and business apps, in a pay as you go way
– e.g. Google Apps, Salesforce.com,Office 365

Question 14

Explain PaaS

Answer 14

User can run their own software on cloud service.
Very much Business facing dealing comparable to operating system, in a pay as you go way
– E.g. MIS research might run programs using the Irish Centre for High-End Computing (ICHEC)

Question 15

Explain IaaS

Answer 15

User can run operating systems and
comprehensive applications on a cloud platform.
Catering to business IT, Hardware in a pay as you go way
– e.g. HP cloud infrastructure

Question 16

How to SaaS, PaaS and IaaS relate?

Answer 16

Providers of SaaS will in turn use resources provided by Paas and particularly Iaas Providers

Question 17

Briefly, what do SaaS Providers provide?

Answer 17

Application
O/S emulation
Network and storage

Question 18

Briefly, what do PaaS Providers provide?

Answer 18

O/S Emulation
Netowkr and storage

Question 19

Briefly, what do IaaS Providers provide?

Answer 19

Network and storage

Question 20

Explain O/S Emulation

Answer 20

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.

Question 21

Who are the leading cloud computing providers since 2021

Answer 21

Amazon Web Services – AWS are the leaders with one third of the market.
Microsoft Azure also have large market share
and google cloud is third

Question 22

What are examples of cloud services we use daily and how are these funded?

Answer 22

Google drive, cloud email, video/music - flickr, google play, amazon cloud player
These “free” services are paid for by these companies harvesting our data.

Question 23

How has shared project service like google docs changes ways of working

Answer 23

Shea and Melinda 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.

Question 24

What does ASP stand for?

Answer 24

Application service provider

Question 25

What type of business does cloud computing most suit?

Answer 25

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

Question 26

What are the two software delivery models on a PC

Answer 26

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.

Question 27

What are the four software delivery models in cloud?

Answer 27

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

Question 28

What are the benefits of cloud?

Answer 28

Cost effectiveness – Reduces capital expenditure Flexibility – Easily scalable Availability – Anytime, anywhere Simplicity – Ready made solutions

Question 29

Issues with cloud computing?

Answer 29

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

Question 30

Give example current in UCD of lock in issue with cloud computing

Answer 30

Lock in issues. UCD cuts of alumni email on ucdconnect having promised lifetime access, because Google changed its pricing model. UCD deal with Google medium term contact not compatible with “lifetime” guarantee, a 21 year old graduate might live for 80 years.

Question 31

What are the enterprise SaaS vendor market leaders?

Answer 31

Microsoft, Salesforce,Adobe, SAP

Question 32

What is utility computing?

Answer 32

Traditional utility computing, a company offloads server processing work to another company at a remote site

Question 33

What is Cloud utility computing

Answer 33

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!

Question 34

Who uses cloud utility computing? Give example

Answer 34

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

Question 35

What does AWS stand for

Answer 35

Amazon web services

Question 36

What is the actuarial uses of technology?

Answer 36

Data visualisation Predictive models Cloud computing Collaborative tools Artifical Intell/ Machine learning

Question 37

Give some visualisation cloud applications

Answer 37

PowerBI Tableau Qlik

Question 38

What is current situation with cloud in Ireland?

Answer 38

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.

Question 39

What is the energy consumption of data centres like?

Answer 39

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.

Question 39

What is the energy consumption of data centres like?

Answer 39

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.