Welcome to the CSC Q&A, on our server named in honor of Ada Lovelace. Write great code! Get help and give help!
It is our choices... that show what we truly are, far more than our abilities.

Categories

+16 votes

Can someone put the order of how the internet works from the activity we did on Monday?

asked in CSC335_Spring2019 by (1 point)

2 Answers

+13 votes
 
Best answer

If I remember right the pc sends a DNS request which goes over ethernet to a DNS server. The DNS server sends the IP of the website host back and the the pc sends a request throught the ethernet and firewall, then to a router that sends the request through some more routers along fiber optic cables until it reaches the host of the website. Then the host sends back the website data with a '200' for ok or a '404' if there was an error.

I think thats the general idea.

PC => DNS
DNS => PC
PC => firewall => routers => host
host => routers => firewall => PC

answered by (1 point)
selected by
+8 votes

I think that host computers making the request have the options to use preferred DNS servers and DNS caching in order to speed up the process. So that when a HTTP GET is requested to a web server it may have an opportunity to get there in fewer hops.

answered by (1 point)
...