Ping or tracert.
if the host or piece of equiptment is reachable accross the network
tracert command
ping
Ping
tracert host.com
im not really sure however it is called LAN for local area network. try asking that.
the command prompt is a program where you can command the computer to perform functions such as shutdown, restart, open a certain file, start a program, etc.
Arp -a
The simplest answer I can add here is the your command over the network of the world wide web.
I think you mean "ping" not "pin". The ping command is a network request for another machine to answer to show it is reachable. 127.0.0.1 is an IP address. It happens to be a very special one, it is reserved to mean "localhost" or "me". So when you type "ping 127.0.0.1" you are asking your own machine to answer itself. While another machine may fail to answer, you can always expect a reply to 127.0.0.1
what is a dimmed command for computer
Local system IP address,Subnet mask and Default Gateway of a computer