Select all of the following statements that are true. Correct statements are quotes or paraphrases from this lab's Introduction. Incorrect statements will not be found in this lab's introduction. An i-node is an index into a table that contains metadata such as the locations of a file's contents on a Hard Disk Drive (HDD). Many different file systems exist. Some conserve storage space more effectively than others. Some provide better security features than others. Some enable faster access to file content than others. In almost every file system, files form a hierarchical tree -all internal nodes are directories, all ordinary files are leaves and some leaf nodes are empty directories. A directory should be thought of as a table of two columns: first column lists the names of files, and the second lists the corresponding i-number. The internal order of the rows of this table is unimportant. File systems do not restricts the characters that may appear in file name base names. In both Windows and Linux, a soft link can identify a file or directory on a remote server. Linux internally identifies every file with an i-number. Two different files within the same file system volume will have different i-numbers. There is a one-to-one correspondence between files and i-nodes. The bytes stored by a file typically do not have any particular meaning to a file system. The bytes are only meaningful to users or programs that read the file's contents. In many Unix/Linux file systems, every Unix/Linux file (including directories) has a parent directory that it belongs to. Every directory contains two special entries: (i) the dot dot,'.. ', refers to itself --a self-loop: and (ii) the dot,'.', refers to the parent directory. It is possible to have one physical disk partition shared by multiple operating systems simultaneously. In Linux, hard links can cross file systems. In many Unix/Linux file systems, every directory is a file. So, when we wish to discuss a non-directory file we sometimes use the term "ordinary" file