Welcome to the exciting world of Cisco certification! If you’ve picked up this book because you want to improve
yourself and your life with a better, more satisfying, and secure job, you’ve done the right thing.
striving to enter the thriving, dynamic IT sector or seeking to enhance your skill set and advance your position
within it, being Cisco certified can seriously stack the odds in your favor to help you attain your goals!
Cisco certifications are powerful instruments of success that also markedly improve your grasp of all things
internetworking. As you progress through this book, you’ll gain a complete understanding of networking that
reaches far beyond Cisco devices.
By the end of this book, you’ll comprehensively know how disparate network
topologies and technologies work together to form the fully operational networks that are vital to today’s very way
of life in the developed world. The knowledge and expertise you’ll gain here is essential for and relevant to every
networking job and is why Cisco certifications are in such high demand—even at companies with few Cisco devices!
Although it’s now common knowledge that Cisco rules routing and switching, the fact that it also rocks the security, collaboration, data center, wireless and service provider worlds is also well recognized. And Cisco certifications
reach way beyond the popular but less extensive certifications like those offered by CompTIA and Microsoft to
equip you with indispensable insight into today’s vastly complex networking realm.
Essentially, by deciding to
become Cisco certified, you’re proudly announcing that you want to become an unrivaled networking expert—a goal
that this book will get you well on your way to achieving. Congratulations in advance on the beginning of your