As I look for study aids for the Flexbox I see that there may be some non-standard or mixed implementation that Microsoft uses? Can someone please show me a resource to study the Flexbox as it will be represented on the most current exam?
James, unfortunately, I would have say to no (in other words, I cannot tell what to study as it would be a violation of the NDA for the exam); however, if you get a question on the exam about flexbox and if you know that the information is incorrect, make sure that you mention it in detail in the exam comments and follow up with Microsoft Learning after the exam.
For the most part, this should not be a major impact on the exam, but you are right to be concerned as the implementation of the flexbox feature has been rather chaotic, and not just from IE. All of the browsers have/are going through various implementations mainly because the standards were in flux.
Christopher Reed, MCT, MCSD, MCPD, Microsoft Specialist, MCTS, MTA "The oxen are slow, but the earth is patient."
I wrote a blog on the flexible content layout models before taking the test. Includes Flexbox, Grid, Multicolumn, and Regions. I'm not 100% I get where you are coming from as far as different implementations, but I based most of this on the spec, and it works in most newer browsers (unlike Grid which only works in IE it seems, or Regions which didn't seem to hardly work in much of anything...)
Just as a follow-up, Troy's article is very good about explaining the current implementation of the flexbox; however, as an MCT, I teach the 20480 course and the information contained in the course material is based on the tentative implementation of the standards from a few years ago. I would say that if you have a good understanding of the flexbox and have reviewed the changes over the last couple of years, you should be in good shape for the exam. Again, if you get a question on the exam that appears to be ambiguous because of the changing of the flexbox standards, provide a comment and later follow up with Microsoft Learning.