Somewhat frustrating, they only accept very specific terms, where synonyms are quite frequent.

Some of those specific terms aren't the most commonly used for the associated concept, which can lead to confusion and frustration.

Furthermore, some of the definitions are either too restrictive, not restrictive enough, or don't seem to match the exactly term they are describing.

I'll withhold specific examples, so those who still want to take the test don't feel that I've spoiled it for them.

I saw "a link between two nodes in a graph." and typed "edge", and it filled in one further down the column: "a link or arc between nodes in a graph." apparently they wanted "arc" for the first one?

Good practice for my Data Structures & Algorithms final! 79/155

Mistake: a geometric series can have a common ratio >= 1.

Thanks! Really awesome!

wouldn't call it fun.. more like aggravating.