Hello Muhammad
Remote LFA is a feature that is required in situations where you want to enable the functionality of LFA, but the topology is such that it doesn’t function as desired.
You’ll notice from the lesson that in order for remote LFA to be enabled, you must first enable “normal” LFA. This is enabled on all routers. So if you’ve configured remote LFA, if it is not needed for the particular topology, it will revert back to “regular” LFA.
In this specific lesson, if you take a look at the output of the show ip route 6.6.6.6 command on R3, you will find that normal LFA will have been employed.
I hope this has been helpful!
Laz