Unit 3.7 The Internet
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5 Terms
what is the internet
a global network of interconnected networks.
what is a web browser
A web browser is software that uses the HTTP or HTTPS protocol to access and display web pages.
what does URL stand for and what is it used for
URL stand for uniform resources locator
It is used to access web pages in a web browser
what is dns and what it is used for
dns stand for Domain Name System
it is a server stores a list of domain names and a list of corresponding IP addresses where the website is stored.
state the 5 step to display a webpage
A domain name is typed into the address bar of a browser.
The browser checks a local (cached) host file to check if it already holds the IP address
If it doesnt then A query is sent to the local DNS server for the corresponding IP address of the domain name.#
The local DNS server will check if it holds an IP address corresponding to that domain name. If it does it passes the IP address to your browser.
The browser then connects to the IP address of the server and accesses the web site.
