Open a day, then a quiz: try it the way a learner sees it, or open Instructor Panel on the batch that has already sat it to see the analytics.
Answers are marked on the server. The share message carries only the quiz title and link — never learner names or scores.
Everything you just browsed — the course, the quizzes, the named batch and its analytics — takes minutes to set up on a free account. Build a quiz (or import one from an HTML file), open a batch, share one link with your learners, and the instructor dashboard fills itself in.