Full Idea
Sometimes 'knowledge' means evident cognition of the conclusion alone, sometimes of the demonstration as a whole.
Gist of Idea
Sometimes 'knowledge' just concerns the conclusion, sometimes the whole demonstration
Source
William of Ockham (Expositio super viii libros [1340], Prologue)
Book Reference
Ockham,William of: 'Ockham's Philosophical Writings', ed/tr. Boehner,P [Hackett 1990], p.5
A Reaction
'Demonstration' will be something like Greek 'logos' - full understanding, ability to explain and give reasons. William is certainly right about normal usage. I know the answer in a quiz, without any requirement for justifications.