Excellent1 wrote: » Neither, actually. The triple constraint refers to: Scope: Deliverable of the project Time: Schedule of the project Cost: Budget of the project Good luck. Also, as an additional comment, this comes up from time to time, as different industries do sometimes substitute quality as one of the constraints. If you do some searching for what CompTIA wants, I think you'll find that what I've written above is correct. I passed this exam earlier this year (in Feb), so it was correct at that point.