Autodesk Revit Arch. Certification: Q&A?

So I gave a look at the certification for Revit Architecture, and on the Autodesk website I found plethora of information, tips and preparation material, including, a pre-test to take in order to see "where you stand", as they put it.
The test is composed by forty seven questions, and it is pretty straightforward for whoever works in Revit professionally.  However, I noticed some errors and inconsistencies which I thought were worth of mentioning, since this certification is not free, and I am worried about the quality of the final test.

Lets look at some of the issues I found.

3D Views: Ortho vs. Perspective

Answer #1 was marked as incorrect by the website.
However, it appears to be the only one answer possible, even only considering the other three are obviously false: 3D view types have nothing to do with "overall building" versus "tight" spaces; nor with exterior versus interior; and certainly default 3D views are NOT static images.

3D Extent at end of Levels / Grids

This question is very confusing to me, see screen shot.

Color Fill Legends

Here I may be splitting hairs, but I still think the answers could be more accurate.

Automatic Embed Curtain Walls

I think this one is quite straightforward, unless I am missing something.

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Detail Components

Is this a matter of opinion?

Duplicate with Dependent

Here the pre-test question and the question at the end of the videos do not match.
Also, the Video quiz has "Correct" written at the end of A:#4 (you had one job to do...)

Duplicating with Detailing

This next question needs more specific answers.

Use of Stacked Walls

I am pretty sure this text was copied from another question, and the "NOT" was forgotten in...

Openings By Face

Even here there is an inconsistency between the pre-test question and the Video quiz:

Rooms Placement

I believe Perkins&Will used this same question on their Revit assessments test, and they as well had it wrong... go figure.

Shadows in Revit

Here there are multiple answers true, but only one answer can be selected...

Stairs Top Level Association

I think this statement is True, unless I am reading it in the wrong way.

Subtractive Modeling

Am I missing something?