Netstat is a command line utility program. It provides useful information about the current TCP/IP settings of a connection.
DHCP is short for Dynamic Host Configuration Protocol. Its main task is to automatically assign an IP address to devices across the network. It first checks for the next available address not yet taken by any device, then assigns this to a network device.
The proper termination for unshielded twisted pair network cable is 100 ohms.
The main purpose of this is to prevent crosstalk. Crosstalks are electromagnetic interferences or noise that can affect data being transmitted across cables.