Answer:
Ans 1.To connect to the Internet and other computers on a network, a computer must have a NIC (network interface card) installed. A network cable plugged into the NIC on one end and plugged into a cable modem, DSL modem, router, or switch can allow a computer to access the Internet and connect to other computers.
Ans 2.Data travels across the internet in packets. Each packet can carry a maximum of 1,500 bytes. ... When you send an e-mail to someone, the message breaks up into packets that travel across the network. Different packets from the same message don't have to follow the same path.
Ans 3.protocol is a set of rules that governs the communications between computers on a network. A network protocol defines rules and conventions for communication between network devices.
Ans3 A protocol is a set of rules that governs the communications between computers on a network. A network protocol defines rules and conventions for communication between network devices.
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