Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
Yan yung kung gaano kabilis na matatanggap ng isang server ang request mula sa source(which is yung gamit mong device, for instance) at magrerespond naman yung server doon sa request nung source.