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5 Terms
1
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A set of protocols used to connect network devices to each other.
TCP/IP
2
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Responsible for the communication protocols between nodes. The protocols in this layer include hypertext transfer protocol (HTTP and HTTPS), Secure Shell (SSH), and network time protocol (NTP), among many others.
Application Layer
3
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Responsible for the end-to-end transport of data. The protocols that live in this layer are transmission control protocol (TCP) and user datagram protocol (UDP).
Transport Layer
4
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Defines the logical transmission protocols for the whole network. The main protocols that live in this layer are internet protocol (IP), internet control message protocol (ICMP), and address resolution protocol (ARP).
Network Layer
5
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Establishes how data should be physically sent through the network.