Your question doesn't make a lot of sense, but if the permission is 000 none of the access bits are set and nobody can access the file. However, the root user is "special" in many ways, and depending on the implementation it's possible that root can access it (root can certainly change the permissions to allow him- or herself to access it).
it can be accessed via command prompt
difference between command and statement
It is a command.
a submenu
The answer is submenu.
privileged EXEC
sub-menu
A statement or command
No it is not. It is a statement.
In Linux the chmod command is used to set file permissions.
In windows you can access DOS mode by clicking "run" in the start menu and typing "command" into the blank. DOS mode can also be accessed via the boot menu (accessed by pressing F8 during startup) and choosing command-line.
A statement that can be proven true or false. Not a question, not a command, and not an opinion.