what is use of ping and i want to know it.?

Answer 1

ping is a computer network tool used to test whether a particular host is reachable across an IP network. It works by sending ICMP “echo request” packets to the target host and listening for ICMP “echo response” replies. ping estimates the round-trip time, generally in milliseconds, and records any packet loss, and prints a statistical summary when finished.

The word ping is also frequently used as a verb or noun, where it can refer directly to the round-trip time, the act of running a ping program or measuring the round-trip time.

Answer 2

I f u r in a network and u wanna test if a computer is alive , just open cmd and write down : ping xx.xx.xx.xx where the Xs refer to IP address of the remote computer, you can know any IP address of any computer by typing ipconfig in the cmd black screen. if the computer is connected and turned on and the network card is enabled and no firewall blocks packets, it should reply like this :

C:\Users\Tarek>ping yahoo.com

Pinging yahoo.com [216.109.112.135] with 32 bytes of d

Reply from 216.109.112.135: bytes=32 time=234ms TTL=50
Reply from 216.109.112.135: bytes=32 time=218ms TTL=51
Reply from 216.109.112.135: bytes=32 time=352ms TTL=50
Reply from 216.109.112.135: bytes=32 time=268ms TTL=51

you can see that you can ping also by a computer name or a domain name (xxx.com format for example). the time also gives you a good indication whether the network traffic is heavy or not ( work in Local area networks pretty well)

Good Luck!

Answer 3

It's primarily used as a connectivity test.