Recently moved into a new house in CA, USA. Looking to install 2 pendant lights over kitchen countertop. The house is relatively new construction (2018). I find two junction boxes in the ceiling over the countertop, clearly meant for 2 lights. In one of the boxes (call it BoxA) I see three wires as expected - black, white and bare but no power when tested with non-contact tester. And in the other (BoxB), there are 2 sets of black, white and bare wires (total 6) none of which are connected. Only one of the 2 black wires in BoxB is live, that too only when switched on ( yes, found a switch on the wall that controls it). It seems like they are daisy chained - the second set of wires in BoxB are meant for feeding the power to the next junction box (BoxA) so both the boxes are controlled by a single switch. This makes most sense to me but how to confirm this? Is it safe to connect the same color wires in BoxB and check for power in BoxA? Or could this be a switch loop? If so, how to check? As I mentioned earlier, none of the wires were connected when I opened the Box. Any guidance is much appreciated. TIA.

[img]https://cimg0.ibsrv.net/gimg/www.doityourselft.com-vbulletin/2000x1504/50f82386_acaf_4201_8486_b57b680ff850_741d1a126514779ac39aee92f1d51aed1fac246b.jpeg[/img] Wiring my first ever fixture. When I took down the old one, the ground wire wasn’t attached and also it used two white wires rather than white/black. I put black electrical tape around the white wire which was attached to the black wires on the old fixture. This light has two switches (bottom and top of stairs). Do I twist in the light fixture’s ground wire into the exposed wire with the cap in the pic (it’s attached to a screw on the electrical box)? Also, should I be worried about not using the black wire or is this common in some situations? I was going to just go black to the marked hot wire, following the old fixtures wiring.