The U.S. Bureau of Labor Statistics (BLS) reports that information technology is one of the fastest-growing fields in the country. Whether you're just starting out, hoping to change careers, or already employed as an IT professional, a national certification on your resume can prove your skills to potential employers. The Microsoft Certified Application Developer (MCAD) credential is an in-demand option for any developer. Prepare for the three exams required for this certification by enrolling in MCAD online courses or training programs.