Eligibility and readiness are separate questions
Someone may meet a formal prerequisite but want to refresh a skill. Someone else may have relevant work experience yet lack the specific course listed. The first question is whether entry is permitted; the second is whether the person has the assumed preparation.
Neither question can be answered reliably by comparing course names alone. Two courses called “Statistics” may cover different material.
Compare the content
Imagine a fictional graduate course that assumes regression, probability, and basic programming. A prior course may cover the first two but not the third. A syllabus or list of learning outcomes can make that gap visible more clearly than a transcript title.
Possible questions include: - Which topics will be assumed from the first week? - Can an equivalent course or documented experience satisfy the requirement? - Who approves an exception or substitution? - Must preparation be completed before applying or before enrollment?
Do not turn an exception into a rule
A student who received permission to enroll provides evidence that an exception occurred, not that everyone can bypass the prerequisite. Written approval is more reliable than a classmate's recollection of a different case.
Cornell's degree-requirement guidance describes requirements at several institutional levels. That is one example of why the responsible program or office matters when interpreting a condition.
Choose preparation after defining the gap
A short refresher, a full course, or no additional study may each be appropriate in different circumstances. The useful starting point is the missing knowledge or formal requirement. Taking another credential without identifying that need can add cost while leaving the actual prerequisite unresolved.
