If you're new to Linux, there's a very handy file you'll want to learn about right away. Jack Wallen introduces you to the hosts file and how to add entries to it.

Inodes store metadata and pointers to data blocks, block sizes determine the granularity of data storage, and various data structures organize and manage data within the filesystem. A solid ...

The virtual file system provides a standard interface for compatibility. The physical file system is responsible for the management of physical memory blocks. Not familiar with Linux?