Types and characteristics of communication protocols including; 12 ATAR
- TCP/IP Transmission Control Protocol/Internet Protocol
- HTTP HyperText Transfer Protocol
- HTTPS HyperText Transfer Protocol over secure socket layer
- WAP Wireless Application Protocol
- For a network to work correctly it needs to have rules to make the system work.
- These rules are called protocols. for example when you type in a web address, it is the HTTP protocol that is working
- A protocol is a set of rules that allow a computing device to communicate with another computing device
TCP/IP - Transmission Control Protocol / Internet Protocol
- is the standard to connect to a web server
- is the standard that divides your expected webpage into smaller 'packets'
- gives an address for each packet
- gets sent
- is the standard for receiving a webpage
- it does error checking to make sure some of the packets aren't missing
- it reassembles the 'packets' into the correct sequence for the expected webpage
- now the browser is ready to display the webpage, BUT, we need HTTP for that
HTTP - HyperText Transfer Protocol
- is the standard to transfer hypertext
- HTTP is the request, response protocol
- a client requests, yes via typing http... into the web address bar
- if the web server can proceed with the request, ie the web address is correct, it will send the page
- if the server cannot proceed with the request, ie the web address is wrong, it will send an error page 404 page not found
HTTPS - HyperText Transfer Protocol Secure (Secure Socket Layer-SSL)
- is the standard to transfer hypertext, but with a secure connection
- it is secure because data passes within a connection encrypted by SSL
- a web server will authenticate to see if the password, called a digital certificate public/private key matches,
- if this key setup matches, it remains secure and you can get into the webpage
WAP - Wireless Application Protocol
- is the standard to access data over a mobile wireless system
- it can access all operating systems, on all mobile devices such as smartphones, tablets, laptops
- Wireless Markup Language (WML) delivers the content to the smaller display screens
- WML is similar to HyperText Markup Language
For You To Do
- What is a protocol?
- How is HTTP different from HTTPS?
- How does TCP/IP work?
- How does HTTP work?
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