Microsoft Certifications

Hi Lovey,
An MCITP (Microsoft Certified Information Technology Professional) focuses on any of several Microsoft server systems technologies, and documents knowledge of those products and their application in a business IT environment. The entry level MCITP focuses on Windows Server and Active Directory (and related, commonly installed tools,) but there are several MCITP options that include Exchange Server, SQL Server, and Sharepoint, to name just a few. The difficulty of these exams varies widely, and your actual knowledge of the products will also play a role in how difficult you perceive these exams to be. In general, the more experience you have with the actual product the easier they will seem.
CCNA (Cisco Certified Network Associate) focuses on networking concepts like OSI model, subnet math, Ethernet switching, routing, and a basic introduction to routing protocols and would be appropriate for a network admin with a couple years of experience who wanted to demonstrate proficiency in those areas. Relatively recently, many new CCNA options have been added, with the "classic" CCNA having been renamed to "CCNA: Routing & Switching." There are also security and voice CCNA options, which, obviously, focus on network security and IP telephony.
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Wish You Luck!