Expanding on the described strength or weakness of the tree-structured directory or by describing additional strengthens or weaknesses.

Advantages and disadvantages of tree-structured directories are that in the tree-structured directory, the directory themselves are files. This leads to the possibility of having sub-directories that can contain files and sub-subdirectories. As an interesting strategy decision in a tree- structured directory structure is how to handle the deletion of a directory. If a directory is empty, its entry in its containing directory can simply be deleted. However, suppose the directory to be deleted is not empty, but contains several files, or possibly sub-directories. Some systems will not delete a directory unless it is empty. However, to delete a directory, someone must first delete all the files in that directory. If are any sub-directories, this procedure must be applied recursively to them, so that they can be deleted also. This approach may result in an insubstantial amount of work. An alternative approach is just to assume that, when a request is made to delete a directory, all of that directory's files and subdirectories are also to be deleted.

The flat file system files in an is an organization of operating system
in which all files are stored in a single directory. In contrast to a
hierarchical file system, in which there are directories and subdirectories and different files can have the same name as long as they are stored in different directories, in a flat file system every file must have a different name because there is only one list of files. Early versions of the Macintosh and DOS operating systems used a flat file system. In addition, flat file system require a lot of time for exploring files, change permissions in a flat filesystem, for part of the files, is not possible all at once - it needs changes on each individual files permissions, and may take seconds or minutes while the permissions are unclear and changing.

My personal preference will go with the MAC OS which applies the HFS+ file system. Which use the hierarchical system, this because the simplicity and the introduction of this technology to our generation, is more organized than it seems to be a flat file system when in the old days was. Since each folder has their own name file and path created make this simple and easier to find and explore an OS system. Also, the security issues that this might cause in an OS with the concerns of configuration, partitioning, compatibility. Among other characteristics that I prefer the hierarchical system are such the convenience of the new features that offers in comparison with the old flat systems, such as security, network connection, USB ports, CD ROM, etc. this by far is a more complete and diverges above the previous systems.

Reference:
TestOut. (2015). Linux Pro. Utah: Author. Retrieved from www.testout.com Chapter 4, “User Interfaces and Desktops”
Chapter 7, “Disk and File System Management”

Red Hat, Customer Portal. (2014). Chapter 9: Network file system (NFS). In Red Hat Enterprise Linux 4: Reference guide. Retrieved from http://docs.redhat.com/docs/en- US/Red_Hat_Enterprise_Linux/4/html/Reference_Guide/ch-nfs.html

Question : Expanding on the described strength or weakness of the tree-structured directory or by describing additional strengthens or weaknesses.