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Cisco CCNA Certification: Broadcasts, Unicasts, and Multicasts
When you begin your CCNA studies, you get hit with a lot of
different networking terms right away that you might not be
familiar with. What makes it a little more confusing is that a
lot of these terms sound a lot alike. Here, we're going...
Is "Spyware" Watching You?
Imagine my surprise when I received a phone call from a friend who told me he'd been the victim of a "spyware" attack that left him shaking at his loss of privacy. I listened to his horror story with a sympathetic ear, but I felt secure since I...
Networking Structures Explained: Access Point or Ad-hoc?
What happens to many people is that they're just about to
purchase some wireless equipment, and then they have a sudden
realisation -- they have no idea how their network layout is
going to work with a wireless connection. Well, there are a...
The Future of Wireless Networking
Wireless is a technology that's cheap, easy and useful right
now, and yet it's a technology that's still very young. Here's a
quick look at what the future could hold for wireless
networking. It will only improve and develop with time.
The...
Wireless Networks: How Do They Work?
Wireless networks use radio waves instead of wires to transmit data between computers. Here's how:
The Binary Code: 1s and 0s
It's well known that computers transmit information digitally, using binary code: ones and zeros. This translates well...
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Cisco CCNA / CCNP Home Labs: Developing Troubleshooting Skills
CCNA / CCNP candidates are going to be drilled by Cisco when it comes to troubleshooting questions. You're going to have to be able to analyze configurations to see what the problem is (and if there is a problem in the first place), determine the meaning of different debug outputs, and show the ability not just to configure a router or switch, but troubleshoot one.
That's just as it should be, because CCNAs and CCNPs will find themselves doing a lot of troubleshooting in their careers. Troubleshooting isn't something that can just be learned from a book; you've got to have some experience working with routers and switches. The only real way to learn how to troubleshoot is to develop that ability while working on live equipment.
Of course, your company or client is going to take a very dim view of you developing this skill on their live network. So what can you do?
Assemble a Cisco home lab. When you start working with real Cisco equipment, you're doing yourself a lot of favors. First, you're going to be amazed at how well you retain information that will become second nature to you before exam day. But more importantly, both for the exam room and your career, you're developing invaluable troubleshooting skills.
Don't get me wrong, I'm not saying knowing the theory of how routers and switches work is unimportant. Quite the opposite - if you
don't know networking theory, you're not going to become a CCNA or CCNP. But the ability to apply that knowledge is vital - and the only way you can get that is to work on real Cisco routers and switches. As for these "router simulators" on the market today, ask yourself this simple question: "When I walk into a server room, how many router simulators do I see?"
I often tell students that they'll do their best learning when they screw something up. I've had many a student tell me later that I was right - when they misconfigured frame relay, ISDN, or another CCNA / CCNP technology and then had to fix it themselves, it not only gave them the opportunity to apply their knowledge, but it gave them the confidence to know they could do it.
And you can't put a price on confidence - in the exam room or in the network center!
About The Author
Chris Bryant, CCIE #12933, is the owner of The Bryant Advantage (www.thebryantadvantage.com), home of free CCNA and CCNP tutorials, The Ultimate CCNA Study Package, and Ultimate CCNP Study Packages. Video courses and training, binary and subnetting help, and corporate training are also available.
For a FREE copy of his latest e-books, “How To Pass The CCNA” and “How To Pass The CCNP”, visit the website and download your free copies!
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