Which of the following is not a requirement for taking a Kryterion exam?

To take a Kryterion exam, a stable internet connection is essential because it ensures that the exam can be delivered without interruptions. Additionally, a desktop or laptop computer is typically required as these devices provide the necessary screen size and compatibility with exam software. A webcam or video camera is also mandatory for identity verification and to monitor the examination environment to maintain integrity.

Using a mobile device, while it may be convenient, is not a requirement for taking a Kryterion exam, as the online testing platform is primarily designed for use on computers. Therefore, the selection of using a mobile device is not a necessity, making it the correct answer in this context.