Didn’t you use test exams or example exams to prepare for the real test? I know that as a widespread and morally perfectly acceptable preparation method.
Many text books have accompanying material for instructors, including, sometimes, exam questions. The publishers will absolutely not make it available to anyone except instructors.
This is from the MIT press website, for example:
"Instructors with access to the manual must agree not to share the manual’s password, to make any of the solutions publicly accessible, on the Web or otherwise, or to make any of their own solutions publicly available."
If a student has access to that material, someone violated that agreement, and the student is in possession of an illegal copy.
Didn’t you use test exams or example exams to prepare for the real test? I know that as a widespread and morally perfectly acceptable preparation method.