Packets are the fundamental units of data transmitted over the Internet, containing physical and logical addresses for accurate delivery through packet-switching technology.
Packets are the fundamental units of data transmitted over the Internet. Information and data are split into small chunks, sent through data lines, and reassembled for the recipient.
Each packet includes both physical (MAC) and logical (IP) source and destination addresses to ensure it reaches the correct device. This process is aided by the Address Resolution Protocol (ARP) that maintains a table of MAC addresses and their respective IP addresses.
The innovation of packet-switching technology allows messages to be broken into multiple pieces or packets, sent through different routes to ensure fast and secure transmission over a network.
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