You can find the requirements on Pearson Vue's website. The following link should get you started, under Additional Information:
home.pearsonvue.com/pmi/onvue
Under Webcam: Webcam must have a minimum resolution of 640x480 @ 10 fps.
Webcam may be internal or may be external and connected to the computer.
Question for those of you who took the exam from home, do we need to have an external webcam as well as the built-in webcam? where can I find the exam system requirements?
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®