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- Microsoft Certified Systems Engineer: Windows 2000 (A260-9664)

- Microsoft Certified Systems Administrator: Windows 2000 (A260-9669)

- Microsoft Certified Data Administrator: Microsoft SQL Server (A260-9663)

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- CCNA Routing and Switching (Since 2002)
- Microsoft Certified Systems Administrator: Windows Server 2003 (A260-9673)

- CCNA Routing and Switching (Since 2006)
- CCNP Routing and Switching (Since 2006)
