The Internet and the World Wide Web Flashcards
What is the Internet?
The internet is the worldwide collection of networks that use the internet protocol suite(TCP/IP)
The Internet is also classified as hardware
What is the WWW?
The World Wide Web(WWW) is the collection of web pages hosted on web servers. the web runs using HTTP
The web is also classified as a resource hosted on the internet
What is a IP address?
An Internet protocol(IP) address is the unique identity device on a network, and defines where it is located geographically
The router uses the destination IP address of the packet to identify where to send the packet, and routing algorithms determine the best route to get it there
What is Packet Switching?
Packet Switching is the method of data transmission
No fixed path is created between the communicating devices; each packet can take a different route to reach its destination
What infomation is contained in data?
The Header= The packet number(which packet it is in a sequence of packets)
The Data= The MAC and IP address of the sender and receiver
The Trailer= Which protocol is being used
May also contain a checksum= A validation check to determine if an error has been introduced
Sender and receiver calculate a checksum using a function applied to the data- if they match, then data hasn’s been corrupted
