1. What is a directory?
2. What is a sub-directory?
3. What is a file system path?
4. What does the path /a/b/c represent?
5. What does the path ./d/e/f (or simply d/e/f) represent?
6. What does the path ../g/h/i represent?
7. Where is the current/working directory stored?
8. What should the working/current directory of the child process be when it is created ?
9. When can you remove a directory?