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Ping is a tool that allows users to test if a host of Internet Protocol can be reached. This universal utility is available for any operating systems that can connect to the internet. Ping sends out ICMP request to the target host and waits for reply.

TCP is one of the most important protocols of the "Internet protocol suite". TCP is a connection protocol that establishes connection between a client and a server before any data can be distributed. Altho, in its core TCP is a very complicated process, its basic functionality did not change since its first implementation.