Lecture 20 Ch 19

Question 0

Five general characters of the cloud

Answer 0

• on-demand self-service
• broad network access
• resource pooling
• rapid elasticity
• measured service

Question 1

What is cloud computing?

Answer 1

Hosting computers, or cloud providers, deliver services to subscribers over the Internet

Question 2

Platform-as-a-Service (PaaS)

Answer 2

Permits subscribers to have remote access to:

• applications development
• interface development
• database development
• storage and testing

Question 3

Software-as-a-Service (SaaS)

Answer 3

-Enables software to be deployed from provider, delivered over the Internet, and accessed by subscriber
-primary reason to subscribe:
~limited risk
~rapid deployment
~fewer upfront costs
~increased reliability
~standardized backup procedures
~Lower total cost of ownership (TCO)

Question 4

Scale and cost of cloud

Answer 4

Organization doesn’t have to purchase equipment, license software, and hire personnel

Question 5

Encapsulated change management

Answer 5

Hardware and associated technology can be maintained, redistributed, and redirected without major reconfiguration

Question 6

Choice and agility

Answer 6

Subscriber deployed solutions that best suit current needs and trends

Question 7

Next-generation architectures

Answer 7

Innovation and foresight in IT are not a threat to the bottom line or current operations

Question 8

Pros to cloud

Answer 8

• scale and cost
• encapsulated change management
• choice and agility
• next-generation architectures

Question 9

Lock-in

Answer 9

Able to switch providers without losing ability to access data

Question 10

Reliability

Answer 10

Provider could lose power, run into trouble, burn down, or simply go out of business

Question 11

Lack of control

Answer 11

Control of resources is surrendered to someone in the cloud

Question 12

Security

Answer 12

• Concerns are centered on dates being stored on servers owned and controlled by the cloud provider
• results in compromise between cost and risk management