Distributed computing | AP CSP (article) | Khan Academy

Similarly, watching movies over Netflix or Hulu is a cloud computing service, in which entertainment is consumed over the Internet instead of buying a movie from the store and playing it on a DVD player.

2) Public internet connections can be more dangerous (see this link for more:

3) Clusters are usually used internally at a company, hence there is little need for them to have a public Internet connection as they only communicate locally. Computer networks are independent of the Internet ( a collection of networks), which is why clusters can run without being tied to the Internet.

4) Absolutely. One way is using a VPN (also discussed in certain places in the above link). However, through the use of encryption and authentication, using the public internet has become much safer than people might think.

Hope this helps!

1) The cloud (to simplify greatly) represents a collection of computing resources accessed over the Internet. Instead of playing video games on a console, imagine users pressing keys, the keys are sent over the Internet to the cloud, the cloud processes them, and sends back the results of the keys by streaming the new images to the TV. This is the new idea behind Google’s Stadia and Microsoft xCloud. The “cloud” in this case is hardware (a gaming console) accessed over the Internet.Similarly, watching movies over Netflix or Hulu is a cloud computing service, in which entertainment is consumed over the Internet instead of buying a movie from the store and playing it on a DVD player.2) Public internet connections can be more dangerous (see this link for more: https://www.khanacademy.org/computing/computers-and-internet/xcae6f4a7ff015e7d:online-data-security ), but generally using HTTPS over the public internet is just as (if not more) secure as a private Internet connection.3) Clusters are usually used internally at a company, hence there is little need for them to have a public Internet connection as they only communicate locally. Computer networks are independent of the Internet ( a collection of networks), which is why clusters can run without being tied to the Internet.4) Absolutely. One way is using a VPN (also discussed in certain places in the above link). However, through the use of encryption and authentication, using the public internet has become much safer than people might think.Hope this helps!