 Category :: Computer Certification Articles |
Author :: Chris Bryant  |
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| Article Title :: Cisco Certification: The "Secret" Key To Getting Your CCNA And CCNP |
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| Whether you're working on your CCNA or CCNP, Cisco certification exams are the most demanding computer certification exams in the IT field. Cisco exams are not a test of memorization, they're a test of your analytical skills. You'll need to look at configurations and console output and analyze them to identify problems and answer detailed questions. To pass these demanding exams, you've got to truly understand how Cisco routers and switches operate - and the key to doing so is right in front of you.The debug command.Of course, there is no single "debug" command. Using IOS Help, you can quickly see that there are hundreds of these debugs, and I want to mention immediately (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNA Certification: Error Detection vs Error Recovery |
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| Passing the CCNA, Intro, and ICND exam is all about knowing and noticing the details. (Which makes perfect sense, since becoming a master networking administrator or engineer is also about noticing the details!) One such detail knows the difference between error detection and error recovery. While the terms are sometimes used interchangeably, they are not the same thing.Error detection is just that - error detection only. Two common error detection methods are found at the Data Link layer of the OSI model, the FCS (Frame Check Sequence) and CRC (Cyclical Redundancy Check). A mathematical equation is run against the data in the frame, and the result is sent along with the data. (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNP / BSCI Certification: The Local Preference BGP Attribute |
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| When studying for your BSCI exam for the CCNP, you get your first taste of BGP. One of the major differences between BGP and the other protocols you've studied to date is that BGP uses attributes to describe paths, and to influence the selection of one path over the other.In this free tutorial, we're going to take a look at the Local Preference attribute and compare it to the Cisco-proprietary BGP attribute "weight".The Local Preference (LOCAL_PREF) attribute is used to influence how traffic will flow from one Autonomous System (AS) to another when multiple paths exist. For example, if AS 100 has two different paths to a destination network in AS 200, the LOCAL_PREF attrib (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNA Certification: Cisco Switching Modes |
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| To pass the CCNA exam and earn that coveted certification, you've got to know Cisco switches inside and out. Among the many important details you've got to know are the three methods that Cisco switches use to forward frames, and the differences between the three.The first switching method is Store-and-Forward. The name is the recipe, because that's just what the switch does - it stores the entire frame before beginning to forward it. This method allows for the greatest amount of error checking, since the Frame Check Sequence (FCS) can be run before the frame is forwarded. As always, there is a tradeoff, since this error checking process makes this the slowest of the three fram (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNP / BSCI Certification: The BGP Attribute "MED" |
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| When you're preparing to pass the BSCI exam and earn your CCNP certification, one of the biggest challenges is learning BGP. BGP is totally different from any protocol you learned to earn your CCNA certification, and one of the differences is that BGP uses path attributes to favor one path over another when multiple paths to or from a destination exist.Notice I said "to or from". In earlier free BGP tutorials, I discussed the BGP attributes "weight" and "local preference". These attributes are used to favor one path to a destination over another; for example, if BGP AS 100 has two paths to a destination in AS 200, these two attributes can be set in AS 100 to favor one path over (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNP / BSCI Certification: Introduction To ISIS Terminology |
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| When you're studying to pass the BSCI exam and earn your CCNP certification, you're going to be introduced to ISIS. ISIS and OSPF are both link-state protocols, but ISIS works quite differently from OSPF. You must master these details in order to earn your CCNP.One of the major differences between OSPF and ISIS will be evident to you when you first begin your BSCI exam studies, and that is the terminology. ISIS uses terms that no other protocol you've studied to date uses, and learning these new terms is the first step to BSCI and CCNP exam success.First off, what does "IS" stand for in "ISIS"? It stands for "Intermediate System", which sounds like a group of routers. (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNA Certification: The Value Of The CCNA And CCNP |
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| One question I see often on the 'Net is "Is it worth my time to earn a CCNA / CCNP / CCIE certification?" My personal answer to that is a resounding yes. The power of Cisco certifications has allowed me to create a tremendous career, and they can do the same for you.There has never been a better time to accelerate your IT career, and earning a technical certification is a great way to do just that. I don't care if you're looking at earning an MCSE, a Cisco certification, Red Hat, or any other vendor - you are always better off having a technical certification than not having one. Technical certifications are an excellent way to market yourself and stand out from the crowd. Earning (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: Cisco CCNP / BSCI Tutorial: Comparing OSPF and ISIS Hellos |
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| While studying to pass the BSCI exam and preparing to earn your CCNP certification, you'll quickly notice that while OSPF and ISIS are both link-state protocols, there are a lot of differences between the two. One major difference is the way the two protocols handle hello packets.Hello packets are imperative to keeping OSPF and ISIS adjacencies alive. Since they are both link-state protocols, neither of them will send updates at any specified time. Hello packets are the only method by which routers running OSPF and ISIS can see that a neighboring router is still available.OSPF gives us some great options when it comes to keeping routing table size down via the use of stub (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Bryant |
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| Article Title :: It's 2006 - Do You Know Where Your IT Career Is? |
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| Whether you're thinking of starting a career with computers and information technology, or thinking about earning a professional certification such as the CCNA or MCSE to accelerate your career, there is no better time to start than today. Silicon Valley is hiring again, and while we all can't work for Google, IT hiring is at its highest level in years and the opportunities for driven, motivated individuals are unlimited.I also know that for many of us, the holiday season is a good excuse to put off those studies! "I'll study for the CCNA after Thanksgiving..." "I'll start working on my CCNP after the New Year..." Well, guess what - the new year is here.It's 2006. Where i (read full article) |
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| Category :: Computer Certification Articles |
Author :: Chris Le Roy |
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| Article Title :: The Secret To Passing The Microsoft Office Specialist Exam |
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| If you are trying to get ahead in you career today, you will know that the computer skills you have under your belt are what will make the difference between you moving up the ladder or down. When it comes to trying to prove your computer competency in using office applications there is no other certification path that stands out like the Microsoft Office Specialist program. With over 3 million exams now undertaken and well over 2 million Microsoft Office Specialist Certificates issued, this certification has become the one to get to prove your skills in using Microsoft Office.One thing I have found though is that many people fail these exams first time around and there really is (read full article) |
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