I have passed the above mentioned exam on Monday, 12/February/2018.
First, let me direct you to the https://azure.microsoft.com/hu-hu/ site for a general introduction of Azure Services.
This exam is about Azure database solutions.
I have watched a lot of training videos preparing for this exam but I think reading is a much better way to get to know the Azure services. Continue reading Designing and Implementing Cloud Data Platform Solutions Exam Passed 70-473