IP addresses

This protocol used to encrypt all data sent and received to/from web servers

This protocol used to retrieve emails from a server. The server holds the email until client download it

Used by web browser to access web-sites and communicate with web serves

Governs the sending of emails over a network to a mail server.

Governs the transmission of files across a network and the internet.

IP address specifies where you are on a computer network

IP address is grouped as 3 octets (8 bits), which are separated by a dot.

In a class A address, the first octet is the network portion, others for the hosts.

The given IP address 172.31.1.2 identified as Class B address

A public IP address must be globally unique and can be addressed directly by any other computer in the world

IP address 192.168.1.11 is a suitable for the Router 1 port labelled A