HELP WITH NT 4.0 Questions

Please help with the following questions:

1. Where is the SAM database located?
2. How can I create a Logon script with the “logonserver” parameter. Can you guide me through?
3. How can you copy the NT Directory database?
4. How can you disable the floppy drive in NT, so that users can’t access it.
5. How can you use a template to set up a system policy for all users/computers in the domain.
6. How can you bypass the Ctrl+Alt+Del combination
7. How can you avoid concurrent logon