The document contains 6 certificates acknowledging that Mahmoud A. Atallah has achieved various Microsoft certifications, including Microsoft Certified Solutions Associate for Windows Server 2012 and Windows Server 2008, Microsoft Specialist for Windows 7 Configuring, Microsoft Certified IT Professional for Enterprise Administrator on Windows Server 2008, and Microsoft Certified Technology Specialist for Windows Server 2008 Applications Infrastructure Configuration and Windows Server 2008 Network Infrastructure Configuration. Each certificate is signed by Satya Nadella, Chief Executive Officer of Microsoft.