Why this certification?
A decade back HTML/CSS was mostly a designer thing but now its inevitable for programmers to get into it. So I thought that it’s a good time to gear up on this area as well.
Further in context of bigger picture, this exam (along with another exam) would lead to upgrade of my previous credential as “Microsoft Certified Professional Developer (MCPD) .NET Framework 4” to “Microsoft Certified Solution Developer (MCSD) on .NET 4.5”
I highly recommend a great video series on channel 9, “Developing HTML5 Apps Jump Start” and doing some hands on jQuery and new HTML5 APIs by developing a sample project. Otherwise exam is not very difficult for people having background working on CSS and jQuery.
Hope this helps. Happy Learning!