Yes ,they are the required cables.
However there is no guarantee that this will work as it is becoming more difficult to import DV into iMovie/FCPX with recent OSs and recent hardware and the need for extra adapters. I am not aware of the reason for this but it just happens to be the case.
Some do have success whilst others do not.
Also some have had success with importing into QuickTime Player ( see link above) where iMovie has failed.
Another factor could be the cam' itself. I believe that there have been more posts on here where Canon have failed to import than Sony.
I don't believe I have seen mention of many JVC cams on here, so don't know whether that is a good sign or not.
If you have no success then try to find access to an old Mac running an old OS.
Good luck, and yes it would be good to know how you get on.