26.01.26.md (588B)
1 # 26/01/26 2 3 - Layer diagram: 4 Application - HTTP... 5 Transport - TCP... 6 Internet - IP... 7 Link/Network - Wire... 8 9 - TCP (Transport Control Protocol), breaks data up into packets that lets them be sent, with a checksum and other info (like sending a book over many letters) 10 - UDP (User Datagram Protocol), no checking of messages, faster 11 12 - IP (Internet Protocol), decides how to send data between systems (like a mail man) 13 14 - HTTP codes 15 1xx Ongoing 16 2xx Ok 17 3xx Redirection 18 4xx Client error 19 5xx Server error 20 21 - HTTP methods 22 GET 23 POST 24 PUT 25 ...