Microsoft Certifications are professional certifications verifying demonstrated proficiency with Microsoft products. They exist in the categories of Server, Desktop, Applications, Database, and Developer with a variety of tiers of proficiency certified, including Solutions Associate (MCSA), Solutions Expert (MCSE), and Solutions Developer (MCSD). They are earned by passing one or more exams.
Microsoft Has since 2017-01-01 changed all the questions on the exams (70-346) to lower the amount of cheaters.
References
Microsoft Certified Professional Wikipedia(Text) CC BY-SA