Part 5 exam: deliverability decay

Twelve questions on the decay mechanisms and monitoring. The verdict says whether the course core argument stuck.

Last updated 19 July 2026

The drill tested vocabulary and the scenario tested judgment. What's left is mechanism: which decay class you're looking at, and what actually catches it. Twelve questions spanning all seven lessons, scored at the end.

12 questions covering every lesson in this part. No feedback until the end, so answer the way you would in front of a client: committed. You get a score, a verdict, and the list of lessons to reread for anything you missed.

From here the course turns to repair. First stop in Part 6: the deliverability toolbox, toured before it is needed.