Jeffrey R. Shapiro, MSCD, MCT, MCSE, MCITP, has been involved with Microsoft in infrastructure servers, desktops and networks and software for more than 20 years. He has taught many courses on MCSE (NT 4.0, Windows Server 2000-2012), MCITP (Windows XP, Windows 8 and 8.1, SQL Server, IIS, Active Directory and more), MCSD (Visual Basic, C#, ASP, ASP.NET and the .NET Framework), networking fundamentals, and network security. Jeffrey has authored, coauthored, or contributed on more than 20 IT books. Darril Gibson is a veteran trainer who holds Microsoft, CompTIA, and (ISC)2 certifications. He has authored or coauthored more than 30 books.