Adding a Connection on LinkedIn
- I type LinkedIn into my browser
- My browser contacts a Domain Name Server (DNS)
- The DNS then translates it into an IP address of the web server for LinkedIn.
- If it doesn't it contacts another DNS server, and this process continues
- If it does it contacts the Web server and relays packets of data back to my browser
- My browser then interprates the packets of data and displays the LinkedIn Homepage through HTML code and CSS and potentially some javascript (depending on what is on the page)
- I then enter my login details through the homepage which which are then which is queried in the back end/server side database of the site using SQL
- If this is correct i am allowed into my LinkedIn profile page
- I then click on 'connect' on a person i want to connect with on LinkedIn and a request is sent to the back end database using SQL again using SQL
- The user recieves a notification i have requested to connect
- I then wait for the user to accept my invitation
