When a feed drops and reconnects later on, the system will stitch the two pieces back together.
If the break is of less than 15 minutes, the recordings will be in one “block”: there will be one video, with a jump in the middle.
If the break is of more than 15 minutes, there will be two video recordings, that will play one after the other. Identically, they will be played one after the other and you will see the video jump.
Any missing video feed does not alter the exam duration/ time. While the video is not recording, he “timer” is still ticking