Chapter 4

Question 1

What are the cloud computing?

Answer 1

1. Stand Alone Mainframes
2. Mainframes with dumb terminals
3. Stand Alone personal computers (1970’s)
4. Local Area networks
5. Enterprise computing
6. Cloud Computing & Mobile Tech

Question 2

What are cloud computing characteristics?

Answer 2

• On-demand Self and Flexibility: Scalability, elasticity and flexibility and helps with seasonality and demand management
• Uses Grid Computing: Pools various hardware and software, divides it, and shared it amongst many users
• Encompasses Utility Computing: Utility Computing: Charging customers for usage rather than fixed flat rates
• Uses Broad Network Access: Services provided over the internet, accessible from anywhere.
• Uses Virtualized Servers:

Server: Computer that can share and stores files, software, and other networks services.

Server Farm: Thousands of servers networked together

Server Virtualization: Dividing a server to provide a piece of the pie to each user to create standalone, virtual environment that they can use

Virtual Machines: Partitions within the server caused by server virtualization

Question 3

What are the type of cloud?

Answer 3

• Public clouds: For general public, access usually free or per usage
• Private cloud: For internal use or companies
• Hybrid Cloud: Combination of private and public networked together
• Vertical cloud: For one industry

Question 4

How the cloud is delivered?

Answer 4

1. Infrastructure as a Service(laaS); Provides servers, networks, and storage. More RAM, more CPU power, more storage, or a server
2. Platform as a Service (PaaS): Provides same as IaaS but with an OS. Provides tools to develop application software on
3. Software as a service (SaaS): Provides all from IaaS with OS and a specific application that you want

Question 5

What are the Benefits of cloud computing?

Answer 5

1. Cheap-Scalable
2. Accessible
3. Gain access to + resources w/o having them on your own device

Question 6

What are the concerns of cloud computing?

Answer 6

1. Compatibility with legacy systems (old)
2. Reliability is in the hands of the vendor, downtime happens
3. Privacy-your data is controlled by your vendor
4. Security- who can access your data and what measures are in place by the vendor
5. Regulatory & Legal- the laws aren’t the same everywhere when it comes to data management and access
6. Hacking Target- there’s a lot of the data in these clouds!