Protocols

Protocols

Ethernet, HTTP, TCP/IP, FTP, DHCP, DNS, SMTP.

we need standard 'languages' for devices and software to communicate.

Ethernet (fast ethernet, gigethernet) - R345, Cat5, CatSE, Cat6.
10mbps      100mbps      1000mbps                    cables
The most used network protocol for cables.

TCP/IP (Transmission control protocol, internet protocol)
The most used network protocol for network communication.

HTTP (Hypertext transfer protocol) HTTPS (secure)
The standard protocol for websites (downloading content content from a web server)

DNS (Domain name service)
Link the host name to the IP address. Either a host name on a network or a website.

FTP (File transfer protocol)
Used for downloading and uploading files.

SMTP (Simple mail transfer protocol)
Used for email.

DHCP (Dynamic host configuration protocol)
A server or router supplies IP addresses to any device.
IPs have a lease time.
Used for dynamic addressing.

Addresses can also be static - they are set manually and they don't change.
The static address has to be in the same address range as the other devices.
Mainly for servers and printers.