![]() ![]() ![]() The link layer is t he group of communication methods that manages the transmission of data between physical devices and a network. The ICMP protocol is not concerned with exchanging data, rather its purpose is to en sure whether the data is reaching the intended destination. ICMP : ICMP (Internet Control Message Protocol) protocol is a network protocol that allows network devices, like routers, to help diagnose communication issues.IP : The IP (Internet Protocol) protoc ol, along with the TCP protocol, is a set of requirements that define how data is sent over the Internet. ![]() The internet layer, also called the network layer, is tasked with sending and reassembling network p ackets in the most efficient way using network addresses/IP address to send packets to their destination.
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