7.2. Resolving Names to IP Addresses
Name resolution is used on networks to resolve names to IP addresses. You and I use names and words to communicate, but computers use numbers.
If I ask you the IP address of bing.com, you probably don't know it. However, if I ask you the name of Microsoft's online search engine, you probably know the name Bing.com, and that's all you need to know. When you enter Bing.com into a web browser, it is resolved to an IP address and the IP address is used for connectivity.
There are seven methods of resolving names. Three are used primarily, with hostnames used on the Internet and internal networks. Three are found on internal Microsoft networks using NetBIOS names.
Hostnames and NetBIOS names can also be resolved ...