Your computer or laptop has multiple cameras to choose from, i.e. front and rear facing cameras.
When you get to the Camera Check step of onboarding, you will have the option to select which camera input to use for your exam session.
Click the dropdown that says Please select a camera and choose the camera input you'd like to use. If the camera is recognized by our system, you will then see a preview of your camera feed on the page and you're all set to click the Next button to continue to the next step.