Yes,certifications are available for almost every course offered by Microsoft.
The MCSA 2012/2014 certification is the starting point of our technical certifications. The MCSA certification provides a clear starting point for job seekers early in their technology career who are ready to prove that they have the minimum set of skills to hit the ground running. https://www.microsoft.com/en-in/learning/mcsa-sql-certification.aspx
According to a recent study, 86 percent of hiring managers indicate IT certifications as a high or medium priority during the candidate evaluation process.1 Also, the number of job postings in the cloud computing industry is growing so rapidly that there aren't enough qualified workers available to fill the positions, According to an analysis of hiring trends by Wanted Analytics, achieving a Microsoft Certification puts your resume on top of the pile and gives you the competitive edge you need to get hired and get ahead in your career.
No. However, you do not earn your certification until you have completed all required exams.
You can upgrade MCSA2008 to MCSA 2012-2014 by giving two exam 457and 458.