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Cisco (NASDAQ: CSCO) is the worldwide leader in networking that transforms how people connect, communicate and collaborate.

Get valuable IT training resources for all Cisco certifications. Access IT certification study tools, CCNA practice tests, IT salaries, and find IT jobs.

Engage, Collaborate, Co-Create and Share your knowledge by asking and answering questions in the discussion forums, commenting on blogs, rating videos, and sharing tips and advice in the wiki-style documents on configuring, troubleshooting, and desig...

Network Newz is dedicated in helping you keep your networks safe and secure. Articles range from setting up secure wireless networks to SSL VPN and many other security topics.

This site is for and about David Defoe who lives in Saginaw Michigan.

YouTube is a place to discover, watch, upload and share videos.

Welcome To Astorino Networks

Resources from the authors, creators, innovators, & leaders of technology - home to leading publishers Addison-Wesley Professional, Prentice Hall Professional, & Sams.

Cisco Router and Switch configuration tutorials, how to's and examples

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

Upgrade Dell, IBM computer & laptop memory. Identify & install DDR, DDR2 & DDR3 RAM