Do you know what is the best certification for you? Microsoft has created the Technology Lifecycle. See where your skills fit in the lifecycle.

Choose the MCSE credential if you:

• Plan, design, and implement Microsoft Windows server solutions and architectures in medium- to large-sized companies.
• Have at least one year of experience implementing and administering network operating systems and desktop operating systems.

Related job titles: systems engineer, network engineer, systems analyst, network analyst, or technical consultant.

Choose the MCSA credential if you:

• Implement, manage, and maintain the typically complex computing environment of medium- to large-sized companies.
• Have 6–12 months of experience administering client and network operating systems.

Related job titles: systems administrator, network administrator, information systems administrator, network operations analyst, network technician, or technical support specialist.

This information is from Microsoft's website.