CORRECT TEXT

If the module file name is given without directories or extension, insmod will search for the module
in some common default directories. What environment variable can be used to override this:

Answer: modpath

Explanation:
If the module file name is given without directories or extension, insmod will search for the module
in some common default directories. The environment variable MODPATH can be used to
override this default. If a module configuration file such as /etc/modules.conf exists, it will override
the paths defined in MODPATH.