CompTIA Linux+ Basic File Structure

I am currently studying to get my Linux+ certification after receiving the MTA Network Fundamentals Certification and the CompTIA Network+ certification. This for me is a bit difficult as I do not spend much time in Linux as my job requires the knowledge of Windows based systems.

To help me remember the general file structure of *nix systems I have created flash cards that I am using to help me study. This in no way is a complete list and I will update this accordingly when I have time and come across new information.

If any information is incorrect or could be phrased differently please let me know and I will update accordingly.

/usr
		What Directory is the location for mn pages, documents, sample templates, config files, etc?	/usr/share
		What directory contains additional user executable commands?	/usr/bin
		What directory contains header files for the C language?	/usr/include
		What directory holds additional system administrator commands?	/usr/sbin
		What directory is a repository for storing commands and tools that system administrators download from the web, in house, or get else where?	/usr/share
/var
		What directory holds print jobs, cron jobs, email message, and other queued data prior to sending?	/var/spool
		What directory holds temporary files for an extended amount of time (more than what is allowed in /tmp)?	/var/tmp
		What directory contains the user mailboxes?	/var/spool/mail
		What directory contains system logs, boot logs, failed user logs, installation logs, cron logs, mail logs, etc?	/var/log
		What directory contains files holding logs, status, spool, and other dynamic data?	/var
Other Directories
		What directory is used if AutoFS is used to mount NFS file systems using a special map?	/net
		What directory holds server data associated with databases, web sites, and other server data?	/srv
		What directory holds most system configuration files?	/etc
		What directory contains commands required at system bood and most commands requiring root priveledges?	/sbin
		What directory holds shared library files required by the kernel and other programs?	/lib
		What directory holds crucial user executable commands and holds static data files?	/bin
		What is the top level file system directory?	/
		What directory holds orphaned files after a system crash?	/lost+found
		What is the default home directory for the root user?	/root
		What folder contains the Linux kernel, boot loader, boot configuration files, and other files required to boot?	/boot