And would any of the free citizens of NORK notice?
Not sure anyone outside would either (sorry to the relatives).
North Korea disappeared from the internet on Monday for roughly four-and-a-half hours. At around 6.30pm local time (or 6pm if you take the starving nation's recent decision to create its own time zone seriously) through to 11pm, the routes for the country vanished from the internet's routing tables, meaning nothing was coming …
Well, barring multiple networks, etc, at least you would hope there was battery backup. But the point could be moot, it really wouldn't matter if North Korea's Internet was down due to power failure if the client PCs or whatever that would access it have also lost power.