Oh yes, there is a small difference between 40 and 400.
;)
I was referring to "up to 40 students per class" in https://moodle.org/mod/forum/discuss.php?d=363564#p1466833. Am I supposed to know that there are 10 such classes, all hitting the "Start attempt now" within seconds?
Anyway, I saw the new discussion https://moodle.org/mod/forum/discuss.php?d=363828 in the Hardware and performance forum.
Quiz
Securing Moodle Quiz
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