Information Technology Articles

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...

Computers » Information Technology | By Chris Bryant @ Thursday, 23rd February 2006 @ 2:56 PM

There's quite an emphasis on security in today's networks, and that's reflected in Cisco's certification tracks. Cisco offers a CCIE Security track and the Cisco Certified Security Professional (CCSP) intermediate-level certification, but there is no real equivalent to the CCNA on the security side. Instead, Cisco offers several different Security Associate certifications. The good news is that you’ve got a lot of security specializations from which to choose; the ba... more...

Computers » Information Technology | By John Morris @ Wednesday, 22nd February 2006 @ 7:10 PM

In our world where data is power, large companies put a high priority on their data back-up and data storage. Unfortunately, this kind of data storage is typically very expensive and impractical for the small home PC user. Luckily, with the introduction of two new formats of digital storage that are now available, there is a solution. With the DLT or Digital Linear Tape and the LTO or Linear Tape Open, the need for data storage has far exceeded past levels (as compared to previous had 8mm or DDS... more...

Computers » Information Technology | By Ben Franklin @ Sunday, 19th February 2006 @ 4:08 AM

Need to have a big business meeting in a hurry, but don't want to spend a lot of money on travel expenses and lodging? Maybe you're searching for a cost-effective way to connect employees in different locations for collaborative efforts? Try video conferencing over the Internet. All it takes is two computers, two desktop cameras and you're pretty much good to go. The only thing better would be to never have to attend a meeting in the first place, but since that's not p... more...

Computers » Information Technology | By Chris Bryant @ Wednesday, 15th February 2006 @ 8:23 PM

Passing the BSCI exam and earning your CCNP certification demands that you add greatly to the networking skills foundation you created when you studied for your CCNA certification. You learned quite a bit about static routing and default static routing when you passed the CCNA test, and it does seem like that should be all you need to know about static routing, right? One thing you'll learn as you continue to earn Cisco certifications is that there's always something else to le... more...

Computers » Information Technology | By Harry Rockwell @ Wednesday, 8th February 2006 @ 6:12 AM

Sir Tim Berners-Lee was the first Web designer and the inventor of the World Wide Web. He launched the first online website in 6 August 1991. He summed up the Internet communication (compiled with emails) with hypertext transfer protocols. Initially the Web designing was based upon the simple markup languages, functionality of these languages was very limited. At that time only the hyper linking between the pages and layout services were available; it became more extensible and rich in co... more...

Computers » Information Technology | By Chris Bryant @ Sunday, 5th February 2006 @ 5:57 AM

When you're preparing for success on your CCNA or CCNP certification exams, sooner or later you're going to want to start totally from scratch on your Cisco routers and switches. It's easy enough to type "write erase" and "reload", but there are a few details you have to watch if you want your home lab or rack rental devices to act as though they just came out of the box. The first step is indeed to run the command write erase, and then reload the router. Yo... more...

Computers » Information Technology | By Chris Bryant @ Thursday, 2nd February 2006 @ 11:25 AM

More CCNA and CCNP candidates than ever before are putting together their own home practice labs. It's more affordable than it ever has been, and I receive emails daily from new CCNAs and CCNPs who say it's the best thing they could have done to improve their studies. There are some commands you can configure on your lab routers that won't necessarily be on your CCNA or CCNP exams, but they will make life a lot easier for you. Let's take a look at just a few of these... more...