Book 1 Ch.5 Cloud Computing

What is cloud computing?

It is the outsourcing of networked computing resources to the tinternet.

What are the benefits of cloud computing?

It is cost effective, scalable, reliable, hassle free, and globally excessive.

Why is cloud computing cost effective?

It's less expensive than traditional computing since you don't have to purchase a file server computer with enough disk space or a server quality computer. Also you're only charged for the amount of data you use.

How is cloud computing scalable?

Since you pay for the capacity that you use as your storage requirements increase you don't need to worry about purchasing additional disk drives.

Why is cloud computing more reliable for small businesses?

Small businesses can't afford the redundancies that big businesses can afford so if their physical network went down, they'd be unable to have a backup. Meanwhile cloud services back up your data immediately.

Why is cloud computing hassle free?

Since you're outsourcing your cloud you don't have to deal with its maintenance.

How is cloud computing globally accessible?

You can access the cloud anywhere you have an internet connection.

What are the drawbacks of cloud computing?

Entrenched Applications and internet connection speed & reliability.

What are entrenched applications?

Entrenched applications are fixed software that you might not be able to move to cloud computing.

Why is internet connection speed a drawback of cloud computing?

Cloud connection is slower than physical network connection that was accessed over faster bandwidth with gigabit speed.

Why is internet connection reliability a drawback of cloud computing?

If you lose your internet connection you lose your access to the cloud and any applications reliant on the cloud will be unavailable.

What are two ways to mitigate internet connection reliability?

Get an enterprise connection or get redundant connections.

What are the three basic kinds of services provided in the cloud?

Applications, Platforms, and Infrastructure

What are applications (SaaS)?

They are fully functional applications that can be delivered via the cloud.

What are platforms (PaaS)?

A remote virtual operating platform on which you can build your own applications.

What is Infrastructure (IaaS)?

Raw computing power that is accessible via the cloud.