Communication Protocols

The purpose of having protocols
The reason protocols are used is so there are standard rules in which everyone must follow that allow smooth transaction in whatever it is the protocol is used for, people for example have a protocol:
o Listen
o Don’t talk when someone else is
This is done so there is no conflict in the interaction between the two people, it works in the same way with internet protocols.


HTTP and HTTPS
Hypertext Transfer Protocol and Hypertext Transfer Protocol Secure is something that allows you to click things within the page, a link to a specific document or a link to play a video for example. HTTP is also the protocol that allowed easier transfer of data throughout the World Wide Web.

TCP And UDP
Transmission Control Protocol is a very reliable protocol, which means it is a good protocol to be used when emailing and transferring files which both need to be transferred safely as losing them could be a disaster. TCP is the transport protocol that manages the individual conversations between web servers and web clients. When using User Datagram Protocol, programs on networked computers can send short messages sometimes known as datagrams to one another, TCP is a more reliable protocol though.

IP
Internet Protocol provides is the service that gives each computer a unique code, a bit like a postcode, allowing computers to communicate with each other directly.

DNS
Domain Name System gives IP addresses “names”, www.google.com instead of 12.34.56.78; this is done to make things easier for the user because remembering a name of a website is much easier than remembering an IP address.