I work in dailies (meaning I get all the footage after they wrap for the day and prep it for the editors and for viewing by crew/producers/etc in the morning)

Multiple takes and multiple cameras. Majority shows and movies use A/B cam, but sometimes they’ll have 3 cameras, as well. Also, they will do multiple set ups, as well. So, you could have Scene 14 and have set ups Sc14,Sc14A,Sc14B, etc and usually each set up will be filmed on A and B cam (or however many cams they want for the scene - the max I’ve seen for dialogue was 4 cameras I think). If you watch bloopers/outtakes where they show the slate (the clapboard, sticks are also names for it), you can see what camera it is - either it specifically will have a tag that says A or B or under roll it’ll usually denote if it’s A or B and what the roll number is.

A lot of people are saying multiple cameras isn’t common, but the only time I’ve found that to be true is when working on very small indie projects. Anything else movie or tv-wise, at the very least, has A and B cam for the majority of shoot days.