Excessive iPad data consumption

Thanks, that’s a good idea, but it seems to require my knowing in advance when one of these events is going to occur. As I noted, it’s relatively rare but has happened before (The last time was several months ago). I use “My Data Mgr” to track my cell usage, but it just shows cumulatives, doesn’t break it down by app or process. I actually suspect that it’s not an app, per se, but some underlying process that is the source. Something that might apply is that when this has happened in the past, I have been on a weak Wi-Fi network that seemed to drop a lot. It kinda looked as if my iPad was switching back-and-forth between cellular and Wi-Fi, switching to cellular when the Wi-Fi signal dropped, switching back to Wi-Fi when it revived. (I was in that sort of environment during the most recent incident.) I can imagine that this switching back-and-forth might require an amount of data that would be trivial if it only happened once (network handshakes or whatever), if there was only one switchover, but that doing it repeatedly would use up a lot of data. I dunno. 🤔😉😊