Well a few weeks back I passed the 70-483 Programming in C# exam, it had been several years since I took an exam so I did not know how I would do.
I had worked in c# for quite some time now but all of my knowledge was pretty much self taught on the job so I knew there were some gaps in my knowledge so I thought going for the exam would at least highlight the areas in which I need to focus on. Indeed there were some areas I had touched on very little throughout my career so it was definitely a worthwhile cause from that perspective alone.
In my previous employment I had the opportunity to attend the Microsoft official course for this exam which lasted a week which was really beneficial and was a great resource, however it was expensive and not sure I personally would have attended I have had to foot the bill. Other resources that I took advantage of where pluralsight courses, virtual academy jumpstart videos as well as the MCSD Certification Toolkit.
To mention the pluralsight course there is blog post covering this exam course : http://blog.pluralsight.com/learning-path-c-microsoft-exam-70-483 which indicates the videos to check out that would be specific to the exam areas, I cannot rate pluralsight enough to be honest I truly believe it to be one of my best subscriptions I cannot tell you the amount of information I have learnt over the years using this resource as well as solving many technical issues that I had faced – if you do not have a subscription I would encourage you to take advantage of their free trial.
The virtual academy jump start videos were awesome too : http://www.microsoftvirtualacademy.com/training-courses/developer-training-with-programming-in-c, the videos were very entertaining and the presenters knew their stuff best of all it is free so definitely check them out. It is a great resource for some free training.
Other than this plenty of hands on coding there is really no substitute for actual coding I believe it is not only the best way to learn as it will quickly let you know when you hit an area you do not truly fully grasp but also the best way to retain what you learn for longer.