Today they are mostly 32 bits long, but 128 bit ones are starting to be used because the 32 bit ones are essentially exhausted.
One way of partitioning these is CIDR which uses subnet masking. ARP resolves these to MAC addresses. Today they are mostly 32 bits long, but 128 bit ones are starting to be used because the 32 bit ones are essentially exhausted. Those 128 instances are defined in version 6 of the protocol in which they are used. The loopback one is 127.0.0.1 (one twenty seven dot zero dot zero dot one). DNS is used to determine this of the server corresponding to a URL. For 10 points, name these addresses that are used in networks such as the internet.
One way of partitioning these is CIDR which uses subnet masking.
{IP address} [prompt on partial answer; or {Internet Protocol Address}]