I recently took and passed the 70-354 test. I was able to "skip" over the first C# test by completing the Tech Rewards that prompted me to create my app Eratosthenes Library Management (which is still pretty basic), get Tech Reward points and then after passing 70-354 get "A Microsoft Specialist: Programming in C# certification". This was a very cool way to get some certification credit and I actually built an app and put it into the store, instead of just reading and taking a test. I hope to see more of these from Microsoft in the future.
One more test and I'll have my MCSD in UWP apps.
Go to my Gooroo article to view my notes in my shared OneNote.