What does e.g. the character string 128.214.205.16 describe in terms of the Internet?
What is a DNS address and how is it useful to you?
For what purpose was the Internet originally developed?
Who owns the Internet?
Where are web pages stored?
What is a web server?
EXERCISE 2 – Common Internet services
What is the WWW?
How does an e-mail message ‘find’ the correct person?
EXERCISE 3 – Internet etiquette
Why should you be very careful when posting material on the Internet?
What are the network rules of the University of Helsinki on downloading and disseminating copyrighted files through peer-to-peer (P2P) networks?
EXERCISE 4 – Introduction to the use of browsers
What does the prefix http:// in a browser address field mean?
When you move from one web page to another, it is a good idea to open each web page link in a new window. Try opening the following links, each in its own window. www.helsinki.fi www.reittiopas.fi www.helmet.fi
Keep in mind that you can open pages on new tabs instead of a completely new browser window. Open a new tab in the browser window that you have opened, and find a web page you want to browse. Then, return to the tab you were on previously.
For the bookmarks, create the folders Studies and Leisure. Move the bookmarks for the university into the Studies folder and any bookmarks related to leisure activities into the Leisure folder.
EXERCISE 6 – Privacy in browser use
Check the data in the browser’s history bar. Then empty the browser’s history.
Clear the form information from the browser memory.
Remove passwords stored in the browser. If you are doing this exercise on your home computer, you do not have to do this if you have stored passwords on purpose (the same goes for the following exercises
Remove cookies that have been stored in the browser.
Open and view a file that interests you. If you cannot watch the videos on your device, check that your browser and its plugins are up to date.
ANSWERS
EXERCISE 1 – Internet structure and addresses
The series of numbers is the IP address of a web server.
A DNS address is a domain name system address, which enables the use of plain-text addresses that are easy to remember on the Internet.
For the needs of the US military administration
Nobody.
On different servers around the world.
A server on which web pages are stored.
EXERCISE 2 – Common Internet services
One of the most commonly used Internet services which enables you to browse web pages.
On the basis of the individual e-mail address.
EXERCISE 3 – Internet etiquette
it is often nearly impossible to remove data that you have once published on the Internet.
The use of peer-to-peer to download and disseminate copyrighted material is strictly forbidden!
EXERCISE 4 – Basic browser functions
The protocol used.
EXERCISE 5 – Bookmarks and browsing history
The history is a listing of the web pages you have visited maintained by the browser. You can use it to return to web pages you have visited before even if you have not bookmarked them.