Information Technology Articles

Computers » Information Technology | By Chris Bryant @ Friday, 7th April 2006 @ 1:13 PM

To pass the CCNA exam, you've got to know the role of the bandwidth command with IGRP and EIGRP and when to use it. In this tutorial, we'll configure IGRP over a frame relay hub-and-spoke network using the following networks: R1 (the hub), R2, and R3 are running IGRP over the 172.12.123.0 /24 network. This is a T1 line. R1 and R3 are also connected on a different subnet, 172.12.13.0 /24. The bandwidth of this connection is 512 KBPS. R2 and R3 are also connected by ... more...

Computers » Information Technology | By Chris Bryant @ Thursday, 6th April 2006 @ 9:56 AM

The Cisco Discovery Protocol (CDP) sure looks simple enough, but there are quite a few details to know for success on the CCNA exam. In your CCNP studies, you'll be introduced to additional uses for CDP, but for now it's enough to know that CDP is designed to give you information regarding directly connected Cisco routers and switches. CDP runs by default between all directly connected Cisco devices. CDP is also a Cisco-proprietary protocol - if the directly connected device i... more...

Computers » Information Technology | By Andrew James @ Tuesday, 4th April 2006 @ 10:55 PM

CD duplication is affecting our world in many ways and becoming more affordable for the average person. It’s worth mentioning however that better technology is actually properly defined as simply a better way of doing something we already do with whatever process we have at hand. Eor example anytime we find a way to get to work 5mins faster than before we have found a way to improve our lives in some respect. Many times, when people think of copying compact disks, they think of something ... more...

Computers » Information Technology | By Chris Bryant @ Tuesday, 4th April 2006 @ 9:28 AM

I know from experience that part of the excitement and anxiety of putting together your own CCNA / CCNP home lab is deciding what to buy! While you can make a workable home lab out of almost any combination of Cisco routers and switches, some routers are better suited for home lab work than others because they can fill multiple roles. My personal favorite is the Cisco 2520. This router has four serial interfaces, making it an ideal frame relay switch. Don't forget that just becaus... more...

Computers » Information Technology | By Andrew James @ Tuesday, 4th April 2006 @ 7:34 AM

The information covered in this article is rapidly changing our world in many ways and becoming more affordable for the average person. It’s worth mentioning however that better technology is actually properly defined as simply a better way of doing something we already do with whatever process we have at hand. Eor example anytime we find a way to get to work 5mins faster than before we have found a way to improve our lives in some respect. There are hundreds, if not thousands of places w... more...

Computers » Information Technology | By Richard Callaby @ Monday, 3rd April 2006 @ 12:59 AM

Okay you have now passed your certification test, congratulations! Now what? How is this going to actually improve your life, your career? Have you thought about your plans after you have passed the test? For many taking a certification exam is only a stepping stone to true success. The first thing I would do even before pursuing a certification is to have a plan on how this is actually going to help you in your career. Just because you have passed the test does not mean you are an expert... more...

Computers » Information Technology | By Andrew James @ Saturday, 1st April 2006 @ 3:06 AM

Technology such as the Help Desk covered in this article are rapidly changing our world in many ways and becoming more affordable for the average person. Its worth mentioning however that better technology is actually properly defined as simply a better way of doing something we already do with whatever process we have at hand. Rather than thinking of better technology in terms of computers, hi tech gadgets and such, for example anytime we find a way to get to work 5mins faster than before we ha... more...

Computers » Information Technology | By Chris Bryant @ Friday, 31st March 2006 @ 10:56 AM

Policy routing is a major topic on your BSCI exam, and you'll find quite a bit of policy routing going on in today's production networks. But what exactly is policy routing? Policy-based routing, generally referred to as "policy routing", is the use of route maps to determine the path a packet will take to get to its final destination. As you progress through your CCNP studies and go on to the CCIE (or to a Cisco Quality Of Service certification), you'll find that... more...

Computers » Information Technology | By Andrew James @ Wednesday, 29th March 2006 @ 9:58 PM

The world today is rather different than it was 20 years ago. While so many things used to run on manual labor, computers have certainly changed the way we do things. In fact, computer based training is almost essential in every field there is. Think about it. How many jobs do you know of that never use computers? I can only come up with a few. Then there are our daily lives. We take advantage of computers on a regular basis in order to simplify things. Overall, computers have made our world a m... more...

Computers » Information Technology | By Andrew James @ Wednesday, 29th March 2006 @ 2:56 AM

We live in something called the world of electronics. Okay, maybe I just coined that phrase, but it sounds legit, doesn't it? I mean, think about it, we use machines and electronics for everything from ordering a pizza, to sending a letter. How did we ever exist without them? This is the prime reason why everyone should acquire some basic computer training. Think of all the jobs these days that require basic computer training. Better yet, ponder all the ones that don't. It's much ... more...

Computers » Information Technology | By Andrew James @ Tuesday, 28th March 2006 @ 11:12 PM

Entertainment is a prime source of our relaxation. By this, I mean television and film. If you're one of the three people who refuse to indulge in cinema, then you're missing out. The technology we have today is ideal for any movie spectators. As we all know, VHS is rapidly becoming a thing of the past. Just like with cassette tapes, the compact disks are taking over. DVDs are becoming more prominent everywhere we go. It's even possible to rent them online and never have to leave ... more...

Computers » Information Technology | By Andrew James @ Tuesday, 28th March 2006 @ 11:08 PM

As an aspiring digital photographer, I’ve always enjoyed uploading my photos to my computer and playing around with them in photo editing software. I’ve found that I can make my good photos even better, and often times I can salvage a boring, hum-drum photo into something that’s really worthwhile. There are a lot of different photo editing software suites out there, from the ultra-basic programs bundled with Microsoft Windows to professional-level software programs running hundreds or even tho... more...

Computers » Information Technology | By Chris Bryant @ Tuesday, 28th March 2006 @ 2:57 PM

CCNA exam success depends greatly on knowing the details, and if there's one protocol that has a lot of details, it's OSPF! This is true particularly of hub-and-spoke networks, so in this CCNA OSPF tutorial we'll take a look at some of the more important hub-and-spoke OSPF details. This will help you in working with real-world networks as well, since this OSPF network type is one of the more typical network topologies. In OSPF, the hub must become the designated router (D... more...

Computers » Information Technology | By Chris Bryant @ Monday, 27th March 2006 @ 1:55 PM

Summarizing routes is a vital skill to learn to pass the BSCI exam and get one step closer to earning your CCNP. The actual binary conversions are only part of the test, though! You've got to know how to correctly apply the summary routes, and that differs from one protocol to the next. In the last few CCNP / BSCI tutorials, we've looked at using the "area range" and "summary-address" commands to perform OSPF route summarization. Today, we'll take a look at sum... more...

Computers » Information Technology | By Steve Gink @ Saturday, 4th March 2006 @ 6:59 AM

Louis Essen was born in 1908 in a small city in England called Nottingham. His childhood was typical of the time and he pursued his education with enjoyment and dedication. At the age of 20 Louis graduated from the University of Nottingham, where he had been studying. It was at this time that his career started to take off, as he was invited to join the NPL, or National Physics Laboratory. It was during Louis’s time at the NPL that he began working to develop a quartz crystal oscillator a... more...

Computers » Information Technology | By Chris Bryant @ Thursday, 2nd March 2006 @ 7:55 PM

Preparing to pass the CCNA exam and earn this important Cisco certification? Route summarization is just one of the many skills you'll have to master in order to earn your CCNA. Whether it's RIP version 2, OSPF, or EIGRP, the CCNA exam will demand that you can flawlessly configure route summarization. Route summarization isn't just important for the CCNA exam. It's a valuable skill to have in the real world as well. Correctly summarizing routes can lead to smaller ... more...

Computers » Information Technology | By Ben Franklin @ Friday, 24th February 2006 @ 11:04 PM

Web Conferencing is the new way of interaction over internet and giving live presentations. In this kind of conference system, each delegate has to sit with a computer connected with internet and through it one can interact with other people. If telephone is also used, VoIP technology is used else we use only chats. This technology is very cheap and saves time as well as cost and is very environmental friendly as well. Web conferencing provides easiest method to stay connected without spe... more...

Computers » Information Technology | By Chris Bryant @ Thursday, 23rd February 2006 @ 2:58 PM

To pass the BSCI exam and move one step closer to CCNP certification success, you've got to know how and when to use debug commands to troubleshoot and verify network operations. While you should never practice debug commands on a production network, it's important to get some hands-on experience with them and not rely on "router simulators" and books to learn about them. When it comes to RIP, "debug ip rip" is the primary debug to use. This debug will show you t... more...

Computers » Information Technology | By Chris Bryant @ Thursday, 23rd February 2006 @ 2:58 PM

As you earn your CCNA and CCNP certification, you're going to have to get comfortable with manually summarizing routes. This isn't just another reason to learn binary math (although it's a good one!), but summarizing routes is a true real-world skill that can help your network operate more efficiently. So the question isn't just how to summarize routes, it's why. When you summarize routes in RIP, IGRP, EIGRP, or OSPF, you're replacing a series of routes ... more...

Computers » Information Technology | By Chris Bryant @ Thursday, 23rd February 2006 @ 2:57 PM

To pass your CCNA exam and earn this coveted certification, you've got to master the seven layers of the OSI model and what each layer does. For those of you taking the two-exam path, you can expect quite a few OSI model questions on the Intro exam. In this seven-part series, we'll spend some time taking a look at each of the OSI model layers, starting with the Physical layer. Often, CCNA candidates ask if the OSI model has any practical uses for network administrators. I use... more...