Cloud Computing - Lecture 2-2

Question 1

On-premise IT infrastructure

Answer 1

Problems of maintaining on-premise IT infrastructure The expense is high.
•On-premise IT infrastructure is inflexible. It inhibits an organization’s ability to respond quickly.
•Organizations do not use IT infrastructure to its full capacity

Question 2

Characteristics of Cloud Computing

Answer 2

1. On-demand self service
2. Utility computing
   - peak season (increase)
   - off season (decrease)
3. Broad network access -> internet, web browser
   (Work from home)
   - services -> storage
4. Techniques
   - grid computing
   - server virtualization -> partition -> software

Question 3

Types of Clovis computing services

Answer 3

• IT infrastructure support
• to run/display application
• regarding software

Question 4

IT infrastructure support

Answer 4

Infrastructure as a service

Hardware -> cloud service

Software
- organization
- application
- data
- Operating system

Problem
- control

Question 5

To run/ display application

Answer 5

Platform as a service
- hardware and operating system - cloud service provider
- application, data -> org
- tech industries

Question 6

Regarding software

Answer 6

Software as a service
- hardware and software - > cloud

Problems
- quality
- customization

Question 7

Infrastructure as a service

Answer 7

• A cloud service provider (CSP)
• Pros: clients have the highest level of flexibility and management control of IT resources.
• Cons: clients have to handle all the complexity related to the configuration and management of IT infrastructure.

Question 8

Platform os a service

Answer 8

includes operating system and development tools. Pros: the clients can focus on developing and deploying
application software
Cons: less flexible than IAAS since the IT platform is provided as a package
Microsoft Azure App Service

Question 9

Software as a service

Answer 9

A CSP delivers application software through the internet.

Pros: convenient and easy to use
Cons: lack of flexibility since clients can only use the application software provided by the CSP.

•Examples: Google docs; Salesforce marketing cloud (www.salesforce.com)

Question 10

The business value of cloud computing

Answer 10

• Low cost IT resources
• Connectivity
• Organizational flexibility

Question 11

Business clause of cloud computing - second order benefits

Answer 11

Enabling business innovations

Question 12

Cloud computing and the value of it

Answer 12

Resource: optimal utilization
Cost: total cost and ownership (decrease)
IT team: new development

Question 13

Concerns with cloud computing services

Answer 13

1) Reliability →drop box, microsoft argue -> downtime -> loss (productivity and sales )
2) Security
-> mechanism
-> back Up
3) Regulatory - legal compiance 02
-> Laws
-> CSP? network service providers
4) Business Process mis-fit
Provers
Efficiency
Effectioness

Question 14

Sustainability and cloud computing

Answer 14

Energy Efficiency: shared resources, optimized workload
Reduced Carbon footprint: Green Data centers, lower IT waste
Strategies:
Google Cloud has been carbon-neutral since 2007 and aims to operate on carbon-free energy 24/7 by 2030 [1].
Microsoft Azure: Achieved 60% renewable energy use by 2020, with plans to be carbon-negative by 2030 [2].