A server is a computer or device on a network that manages network resources. Servers are often dedicated and they perform only their server tasks.
D (Network and subnet parts) . When using classful IP addressing concepts as described in Chapter 13, Analyzing Subnet Masks, addresses have three parts: network, subnet, and host. For addresses in a single classful network, the network parts must be identical for the numbers to be in the same network.
1 IP specifies the format of packets, also called datagrams, and the addressing scheme. 2  An IP address is an identifier for a computer or device on a TCP/IP network. 3  Networks using the TCP/IP protocol route messages based on the IP address of the destination.