Forty Hours

You cannot teach a man anything. You can only help him discover it within himself. - Galileo Galilei

Saturday, February 24, 2007

Ccna Academy and Certification Ccna

What Difference Between Ccna Academy and Certification Ccna

Author: Sorawut Buddeewong

Firstly, I have to say that CCNA Academy and Certificate CCNA is totally different. Many people still do not know about it such as what is the CCNA and why they should take this course. The Academy course is for students, designed by Cisco. The provided lessons are the fundamental, and the students have to take for about 1-2 years to complete the course. The course divided in to 4 parts, which are CCNA I, CCNA II, CCNA III, and CCNA IV and detail of each part is quite generic and not difficult to learn and complete the course.

The Certification CCNA is the course that has objective to assess knowledge of employees, which assess about ability to configure and assemble parts of machines as well as use it effectively and trouble shooting. For the Certification CCNA the people who actually work with computer network or the work that directly involve with the computer network will gain advantage.

If we compare to each other, we found that the CCNA Academy will take longer time to complete the course but gain a lot of knowledge. However, there are plenty of knowledge that unnecessary for students and this may not be very useful for their work, for example, the knowledge about specification and function of old model router that may be no longer used or no longer available.

However, there still be advantage of taking Academy CCNA course, which is students who take the course will gain a lot of knowledge and be able to learn all element of the course. But, again, this will take very long to complete and gain all of knowledge provided by the course. The Certification CCNA also has advantage, that is, it is the tool to assess qualification and effectiveness of a person who take the course, but if they fail to complete the course, which provided by Cisco, they may feel lose confidence and affect to their work.

There are also many questions such as how to prepare for the Certificate CCNA and what they should know before taking the course or are there any tips to pass the assessment.

I therefore have summarized the fundamental qualification of people who want to take the assessment in order for you to prepare yourself for the assessment.

1.The assessment exam is multiple choice form

2.When you complete one exam and go to the new one, you can not go back

3.You have 2 hours to complete the whole assessment

4.you will get a sheet for take note during the lab exam

5.You must register for the assessment 2-3 days in advance

6.If you failed the first assessment, you can re-apply after 2 weeks

7.The exam consists of 55-56 exams, do not hurry and read the instruction carefully before start the exam.

Knowledge you must have in order to pass the exam

1. Knowledge about network media

2. Basic router configuration by using Cisco IOS commands

3. LAN, WAN network setup and configuration

4. Knowledge on how to configure routable protocols (IP, IPX, etc.)

5. Knowledge on how to configure routable protocols (RIP, IGRP, EIGRP, etc.)

6. Network security

Source: ArticlesBase.com

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Sunday, February 04, 2007

Network Security 101

Network Security

By Robert Flanglin

As more people are logging onto the Internet everyday, Network Security becomes a larger issue. In the United States, identity theft and computer fraud are among the fastest rising crimes. It is important to protect your network and ensure the safety of all computers and users in that network.

What is a Network?

In order to fully understand network security, one must first understand what exactly a network is. A network is a group of computers that are connected. Computers can be connected in a variety of ways. Some of these ways include a USB port, phone line connection, Ethernet connection, or a wireless connection. The Internet is basically a network of networks. An Internet Service Provider (ISP) is also a network. When a computer connects to the internet, it joins the ISP’s network which is joined with a variety of other networks, which are joined with even more networks, and so on. These networks all encompass the Internet. The vast amount of computers on the Internet, and the number of ISPs and large networks makes network security a must.

Common Network Security Breeches

Hackers often try to hack into vulnerable networks. Hackers use a variety of different attacks to cripple a network. Whether you have a home network or a LAN, it is important to know how hackers will attack a network.

One common way for a hacker to wreak havoc is to achieve access to things that ordinary users shouldn’t have access to. In any network, administrators have the ability to make certain parts of the network “unauthorized access.” If a hacker is able to gain access to a protected area of the network, he or she can possibly affect all of the computers on the network. Some hackers attempt to break into certain networks and release viruses that affect all of the computers in the network. Some hackers can also view information that they are not supposed to see.

Destructive Attacks

There are two major categories for destructive attacks to a network. Data Diddling is the first attack. It usually is not immediately apparent that something is wrong with your computer when it has been subjected to a data diddler. Data diddlers will generally change numbers or files slightly, and the damage becomes apparent much later. Once a problem is discovered, it can be very difficult to trust any of your previous data because the culprit could have potentially fooled with many different documents.

The second type of data destruction is outright deletion. Some hackers will simply hack into a computer and delete essential files. This inevitably causes major problems for any business and can even lead to a computer being deemed useless. Hackers can rip operating systems apart and cause terrible problems to a network or a computer.

The Importance of Network Security

Knowing how destructive hackers can be shows you the importance of Network Security. Most networks have firewalls enabled that block hackers and viruses. Having anti-virus software on all computers in a network is a must. In a network, all of the computers are connected, so that if one computer gets a virus, all of the other computers can be adversely affected by this same virus. Any network administrator should have all of the essential files on back up disks. If a file is deleted by a hacker, but you have it on back up, then there is no issue. When files are lost forever, major problems ensue. Network security is an important thing for a business, or a home. Hackers try to make people’s lives difficult, but if you are ready for them, your network will be safe.

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