An MCSA candidate should have 12 months of experience working with a desktop operating system, a network operating system, and an existing network infrastructure.
The Microsoft Certified Systems Administrator (MCSA) credential proves that you have the skills to successfully implement, manage, and troubleshoot the ongoing needs of Microsoft Windows® 2000–based operating environments. An MCSA candidate should have 12 months of experience working with a desktop operating system, a network operating system, and an existing network infrastructure.