internet and its uses Flashcards
internet?
global comp network provides various tech and services using standard communication protocals
what is needed to have internet?
computers, severs, switches, routers, cables
url?
text based address for web page or any resource on internet
what is the world wide web?
collection of resources that exist on a network, resources located on the internet such as web pages
exists inside internet
what does a URL contain?
protocol used, domain name, web page or file name, file path
2 web protocals
HTTP AND HTTPS
HTTP
protocal used t transfer resource such as web pages via world web
uses request codes
communication between web servers and web browsers
get
asks web server to transmit a specific resource
post
adds content to new page under existing web resource
delete
removes the specified resource from web server
put
request modifies an existing resource
https
secure method of sending data via www
operates using encryption to camouflage data, use method called transport layer security
transport layer secuirty
aysemmtric encryption
public and private key
private- controlled by owner of website kept private
public- available to anyone who interacts with server
web browser
software, translates raw html code to a readable format for user to understand
functions of web browser
storing favourites
user history
multiple tabs
cookies, storing
navigation tools
address bar
IP adress
all comp systems connected to internet have unique ip
domain name system
keeps record of all contains in existence and maps each of these domains to an ip address
outline domain name server (drawing)
request to view website
domain name request to DNS server
return IP adress
ip address store in database
access ip address and retreive resource
internet vs www
internet- global network of interconnected comp and devices that allows data transmission and communication
www-subset of internet consisting of interconnected web pages and resources accessed through web browsers its a platform for sharing and accesing info and services
what does url stand for
uniform resource locator
differences between www and internet
1-internet uses ip adresses while www uses http and https
2-internet is primary hardware based and www is more software oriented
3-internet is a network that connects all computers to other while www is a subset of the internet that is a collection of info
4-internet is a superset of the www and www is a subset of the internet