Packets are the units of data that are sent over the network.
a set of data that describes and gives information about other data.
Standardizes the layout of all packets. All packets must have a destination IP address, a from IP address, and the actual data being sent. Defines the layout of a SINGLE packet.
Allows for sending MULTIPLE packets between two computers. TCP checks that all packets arrived and can be put back in the proper order. The metadata must include a destination IP address, a from IP address, the message size and the packet order number.
Protocol that standardizes the language for talking to web servers to send and receive web resources. Defines how computers send and receive hypertext information. (HTTPS: The “S” denotes a secure connection using HTTP.)
