Graded · End-of-lesson check

How much checking is enough?

Six situations. For each, pick the verification level that fits — the lowest level that still protects the work. The four levels are the ones from Lesson 5.3.

Your score
0 / 6
Answer all six to see your result.
Level 1 — Quick reasonableness check.
Level 2 — Source check.
Level 3 — Primary-source & version check.
Level 4 — Expert / instructor review.