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Cisco CCNA Certification Exam Tutorial: Prefix Notation

When you’re ready to take the CCNA exam and get this coveted Cisco certification, you should really be prepared for various types of binary and subletting questions Cisco may throw at you. You must also be familiar with the different behavior, where the mask cannot be disclosed, and that’s where your knowledge of the notation prefix notation is entering another way of expressing the value of the subnet mask, as opposed in decimal format more familiar dotted. Not only will you see the prefix notation in the documentation for Cisco, but you can see on your CCNA exam.

Believe it or not, the two values ​​are exactly the same. The first mask written in decimal notation is more familiar, and you know watching the first three bytes that each bit is set to “1″, because such a maximum value is 255 bytes.

The second value is the mask exactly the same, only this value is expressed in prefix notation. This particular value would be pronounced “slash 24″ and 24 represent the number of successively arranged in the subnet mask.

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The Pitfalls of Using Technology for Technology’s Sake

Being old Internet entrepreneur, I made certain observations over time. Most people who start an online business seem to go through certain “phases.” They make the same mistakes, and they react the same to different circumstances. All the while, they realize that much of this behavior sends glaring red signal that they are probably beginners.

There is nothing wrong with being a newbie (after all, I was not born bright smile). But ask any novice and they will tell you they do not want to appear as a beginner. That’s why I feel the need to attract attention to the typical beginner mistakes you want to avoid. Errors using each part of the new web technology, you will find only because it is available.

I understand the attraction of new technologies. However, before you load a web page or the removal of animated graphics, to ask you some questions.

1. Will this technology add value to my site? By value I mean something that will increase (and not clutter) your Web experience visitors. In addition to being cold, the technology will in some way?

2. The technology will cause inconvenience to my visitors? Are all flash-style home page visitors (repeat visitors, even) to sit down and watch a movie for two minutes each time they come to your site? Have tons of animated or rotating graphics files make your home page load very slowly? Internet users are very impatient person, you know. I can tell you from experience, they will not wait.

3. Does the technology require visitors to my site to do something? Make your visitors to download special software or plug-in to see your site with this new technology? If so, jump! Not worth the chance visitor clicks away.

4. Is the technology stable? Is the chat programs you have installed reliable? Is this new java script work as it should? What video stream skip and crash? If you are new technologies do not work at a rate of 99% of the time, it’s not worth causing a worsening of your visitors.

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