Some of those specific terms aren't the most commonly used for the associated concept, which can lead to confusion and frustration.<p>Furthermore, some of the definitions are either too restrictive, not restrictive enough, or don't seem to match the exactly term they are describing.<p>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?