What is the minimum number of answer choices for each question in the knowledge-based authentication quiz?

The minimum number of answer choices required for questions on a knowledge-based authentication quiz is five. This ensures a more robust assessment of the individual's knowledge and ability to discern between various potential answers. Having five options increases the difficulty level slightly, as it requires the test-taker to evaluate more possible responses, reducing the chance of guessing correctly. This practice helps to enhance the effectiveness of the authentication process by ensuring that the individual not only knows the answer but can also differentiate it from several closely related alternatives.

In the context of knowledge-based authentication, a greater number of answer choices allows for a more nuanced evaluation, as it mitigates the risk of easily passing with a mere guess. Therefore, five answer choices strike a balance between having enough options to challenge the test-taker while still being manageable to answer within a quiz format.