Problem
1. If the owner doesn't have write permission on a file but her group has, can she
(i) edit it,
(ii) delete it?
2. If umask shows the value
(i) 000,
(ii) 002, what implications do they have from the security viewpoint?
3. The UNIX file system has many root directories even though it actually shows one. True or false?
4. What change takes place in the inode and directory when a filename is connected by a hard link?