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	<title>Computer Network Training</title>
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	<link>http://computernetworktraining.net</link>
	<description>Computer Network Training will help you better understand networking concepts and prepare for certification and employment.</description>
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		<title>Computer Network Design</title>
		<link>http://computernetworktraining.net/computer-network-design/computer-network-design/</link>
		<comments>http://computernetworktraining.net/computer-network-design/computer-network-design/#comments</comments>
		<pubDate>Sun, 13 Mar 2011 04:22:37 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Computer Network Design]]></category>
		<category><![CDATA[ccda]]></category>
		<category><![CDATA[certified design associate]]></category>
		<category><![CDATA[cisco certified design associate]]></category>
		<category><![CDATA[computer network]]></category>
		<category><![CDATA[computer network design]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[network design]]></category>
		<category><![CDATA[network training]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=69</guid>
		<description><![CDATA[<p>Virtually every local business, college campus, and government organization has some type of computer network system.  In fact, many of these businesses and organizations could not function without a proper computer system.   There is often horror stories that are told about problems that can occur throughout the office if a computer system crashes.  People rely [...]]]></description>
			<content:encoded><![CDATA[<p>Virtually every local business, college campus, and government organization has some type of computer network system.  In fact, many of these businesses and organizations could not function without a proper computer system.   There is often horror stories that are told about problems that can occur throughout the office if a computer system crashes.  People rely on a good <strong>computer network design</strong> for maintaining the functionality of their business.  We no longer just connect with the people in the office.  For most businesses, they use outside networks that can be communicated with through the Internet and email.  Similarly, large businesses and schools often have all of their computers hooked up to some type of computer network that is responsible for the entire system.</p>
<p>You may be wondering, what exactly is computer network design?  What does it mean?  How does it work?  Does it apply to what I do each day at my job?  One of the most basic definitions is thinking of computers as being a part of a linked system.  All of these computers can work together to connect and correspond with wireless devices.  Computer networks let certain computers communicate with each other and share similar information.  Because the work is shared between computers, the computer network design becomes vital to a company’s success.  Many organizations cannot function properly without being able to share this information through wireless devices.</p>
<p>If you are interested in managing a company’s computer network, you need to become certified.  It is a great job and but can be very competitive.  However, almost every business needs someone to manage their computer networks so the job outlook is fairly good for the future.  If you are interested, you need to look into a certificate program that can teach you the vital skills you will need to know in a short amount of time.  Each certificate program varies on its length.  For example, some programs can take 6 weeks, while others take months or longer.  However, this is really not that long of time to invest in learning computer network process if you are going to be making a decent amount of money in a good job environment.</p>
<p>If you are looking to work in computer network design as a full time job, there are many colleges that have programs that are more time intensive, and skill intensive than just a certificate.  The curriculum is usually based around network communication in organization and businesses specifically.  Cisco has an excellent program called CCDA (Cisco Certified Design Associate) that provides good valuable network training.</p>
<p>The <a title="Computer Network Training" href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information that you might find useful.</p>
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		<item>
		<title>Network Maintenance</title>
		<link>http://computernetworktraining.net/network-maintenance/network-maintenance/</link>
		<comments>http://computernetworktraining.net/network-maintenance/network-maintenance/#comments</comments>
		<pubDate>Tue, 21 Dec 2010 00:37:57 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Network Maintenance]]></category>
		<category><![CDATA[computer maintenance]]></category>
		<category><![CDATA[computer network]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[computer specialist]]></category>
		<category><![CDATA[computer technicians]]></category>
		<category><![CDATA[network maintenance]]></category>
		<category><![CDATA[network performance]]></category>
		<category><![CDATA[network training]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=65</guid>
		<description><![CDATA[<p>In order to stay competitive in the business world, or even to have a well-organized university or organization, it is important that everyone is on the same page.  It is also important that all computers within the organization are linked together in a network.  However, once you get a network setup you cannot simply stop [...]]]></description>
			<content:encoded><![CDATA[<p>In order to stay competitive in the business world, or even to have a well-organized university or organization, it is important that everyone is on the same page.  It is also important that all computers within the organization are linked together in a network.  However, once you get a network setup you cannot simply stop thinking about it and move on to the next big project.  It is important that you remember to plan and schedule ongoing <strong>network maintenance</strong>. Fortunately, this is a fairly simple process.  In order to ensure that your network performance is the best of it’s ability, regular network and computer maintenance should be a regular part of your organization’s up keep.  If you are not familiar with how to ensure that your network is updated on a regular basis, there are several different options that you have available.  For example, various companies that actually install networks often times can do follow up sessions to ensure that everything is working properly.  This can be a good option for organizations that do not have any computer technicians readily available.</p>
<p>If you wish to hire someone to do your maintenance for you, make sure that you tell the computer specialist that you need to undergo a regular upkeep of your network.  The computer specialist should explain what they are doing so you are aware of the process every step of the way.   A regular schedule should be set so that the organization is aware of when maintenance will be taking place.</p>
<p>Several people may be wondering why maintenance is important.  If you do not understand how networks work, it is best if you first understand that every system is connected.  If one of the computers fails, vital information could be lost which could hurt the company or organization as a whole.  Not only is having a network crash inconvenient, but it also limits the success and progression of the organization or business.</p>
<p>To ensure that each computer is safe, and is not hurting the network, it is important to make sure that the proper software is installed and updated to make sure that viruses will not become a problem.  Regular upkeep of individual computers can do a lot to help support network maintenance in general.  As each computer is part of the network, each computer needs to be properly maintained.  By taking care of each part of the network, the entire network will run faster and more efficiently.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information that you might find useful.</p>
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		<item>
		<title>Information Technology Course</title>
		<link>http://computernetworktraining.net/information-technology-course/information-technology-course/</link>
		<comments>http://computernetworktraining.net/information-technology-course/information-technology-course/#comments</comments>
		<pubDate>Fri, 19 Nov 2010 02:52:28 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Information Technology Course]]></category>
		<category><![CDATA[computer network]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[information technology]]></category>
		<category><![CDATA[information technology course]]></category>
		<category><![CDATA[information technology training]]></category>
		<category><![CDATA[network training]]></category>
		<category><![CDATA[technology course]]></category>
		<category><![CDATA[technology training]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=62</guid>
		<description><![CDATA[<p>This time we are living in will come to be known as the age of technology. The strides that have been taken in computers have been both drastic and fast moving. If you compare the technology of today with its’ comparable counterpart even five years ago you will see great changes. With these strides in [...]]]></description>
			<content:encoded><![CDATA[<p>This time we are living in will come to be known as the age of technology. The strides that have been taken in computers have been both drastic and fast moving. If you compare the technology of today with its’ comparable counterpart even five years ago you will see great changes. With these strides in technology it can often times become difficult to keep up with the changes and advances. Even the most technologically savvy person can attest to a difficulty in keeping track of all the advances. Many people, in order to help combat this problem, have started taking an <strong>information technology course</strong>. These courses are both beneficial and practical to help keep on top of the growing technology industry.</p>
<p>With looking into an information technology training, or any course for that matter, there are a few things that you should do in order to make it as beneficial as possible. First you need to plan out what your reasoning is behind taking the course. You should always have a goal for yourself and what you hope to learn and accomplish in order to get the most out of your efforts. Having your goals ready and planned out will help you narrow down the selection of courses to only those that have the things you are hoping to learn. This will save time and money as you won’t have to deal with classes that either don’t have what you are looking for or are filled with extra things that aren’t necessary for your needs.</p>
<p>After you know what you want you will be able to weed out those courses that aren’t applicable to what you are looking for. After you have narrowed down your search you will want to look at each technology course and do some research. You should see what the course has to offer and results you can expect from the course. Another great idea is to find reviews of the course from previous students. This will be most helpful in seeing what they learned and what you can expect to learn. It will also help you find out added benefits that you might not have thought of or may have overlooked.</p>
<p>Anyone who is thinking about taking an information technology course should seriously look into it. As you research which course is for you and your goals you will come to find that there are many different options to meet all of your needs and goals.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information that you might find helpful.</p>
]]></content:encoded>
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		<item>
		<title>Network Training</title>
		<link>http://computernetworktraining.net/network-training-2/57/</link>
		<comments>http://computernetworktraining.net/network-training-2/57/#comments</comments>
		<pubDate>Sun, 07 Nov 2010 20:43:32 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Network Training]]></category>
		<category><![CDATA[computer network]]></category>
		<category><![CDATA[computer network system]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[intranet systems]]></category>
		<category><![CDATA[local area network]]></category>
		<category><![CDATA[network administration]]></category>
		<category><![CDATA[network training]]></category>
		<category><![CDATA[wide area network]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=57</guid>
		<description><![CDATA[<p>Computers are an important part of life, especially in the business community.  If you work in any business situation, you may have experienced a computer network.  This is the way each individual computer workstation is connected to the others.  It is important that they are linked properly and can function well.  A LAN (Local Area [...]]]></description>
			<content:encoded><![CDATA[<p>Computers are an important part of life, especially in the business community.  If you work in any business situation, you may have experienced a <strong>computer network</strong>.  This is the way each individual computer workstation is connected to the others.  It is important that they are linked properly and can function well.  A LAN (Local Area Network) is usually used for smaller businesses or larger ones where the machines are all near one another.  A WAN (Wide Area Network) can be used for larger businesses.  Internet and intranet systems are also available.  No matter which type of network is being used, creation and maintenance of that network must be done by qualified personnel.</p>
<p>Network training is a great way to learn how to design, install or maintain a company’s computer network system.  There are jobs in network administration with companies of all types.  If you are looking for a position in a government organization, a professional office, a large corporation or even a small business, network training could be your ticket into the organization you are looking for.</p>
<p>A network administrator has many duties.  He can be in charge of setting up the system to begin with.  He would maintain the hardware and software that is utilized in the network.  He would analyze problems and monitor networks for functionality.  He may also be in charge of dealing with security on the network, including installing antivirus and firewall programs.  They may also need to make sure that the network is meeting both the needs of the employees and the customers.  This job is in high demand, and only those who have had the proper training are qualified to become network administrators.</p>
<p>There are a number of options for the person looking for education in the field of computer networks.  Many technical colleges offer courses of study to help you become a network administrator.  Universities that have computer based degrees also offer courses on computer networks.  If you are not interested in the administration, you may be interested in the design of networks.  No matter what part of the computer network you are interested in, it is imperative that you receive proper network training.</p>
<p>You can look for online courses from accredited sources and make comparisons.  Remember that in order to be an administrator, you will most likely need a bachelor’s degree.  If you are trying to move up in your company, you will need specialized training on the system that your company uses.  No matter which way you go, you will be able to choose a program that will give you the training you need.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information that you might find helpful.</p>
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		<item>
		<title>Computer Network Help</title>
		<link>http://computernetworktraining.net/computer-networking-help/computer-network-help/</link>
		<comments>http://computernetworktraining.net/computer-networking-help/computer-network-help/#comments</comments>
		<pubDate>Thu, 19 Aug 2010 22:30:56 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Computer Networking Help]]></category>
		<category><![CDATA[computer network]]></category>
		<category><![CDATA[computer network help]]></category>
		<category><![CDATA[computer network technicians]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[network specialist]]></category>
		<category><![CDATA[network technicians]]></category>
		<category><![CDATA[network training]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=49</guid>
		<description><![CDATA[<p>One of the most frustrating things that can happen to a business is when their computer network goes down and will not work.  Computer networks are the lifeblood of many businesses, with the network being the connection to the rest of the office and to the rest of the world.  When these networks have problems [...]]]></description>
			<content:encoded><![CDATA[<p>One of the most frustrating things that can happen to a business is when their computer network goes down and will not work.  Computer networks are the lifeblood of many businesses, with the network being the connection to the rest of the office and to the rest of the world.  When these networks have problems it can kill the productivity of the entire office and make life very difficult for those that are trying to get work done.</p>
<p>One of the best avenues for preventing the need for <strong>computer network help</strong> is installing a firewall on your computer network.  Since all of the computers of a network are connected together and share programs and files, it makes it very easy for a virus to enter through one computer and quickly spread to the rest of the machines on the network.  By installing a firewall and virus software on the network and all of the computers associated with it you will be able to save yourself and your company valuable time and money that would be wasted figuring out what the problem is and fixing it.</p>
<p>When the machines on a network do not work properly it may be cause to call a network specialist to offer computer networking help.  Computer network technicians are specially trained to locate problems and find potential solutions.  Many large companies actually hire full time computer network technicians to keep a close eye on their networks at all times.  This may not make sense for a small business, however.  A smaller company may want to outsource the work to a professional that they can call in whenever there are problems.</p>
<p>Since there are so many different components that make up a computer network, it is important to keep all of the different machines working properly.  That means that the components of the network should be under regular maintenance to ensure that they don’t break or malfunction.  The computers should be updated with the newest software updates as well as driver updates for the other parts of the network.  Modems and cable connections should be checked regularly to make sure that they are not coming loose.</p>
<p>When your network is malfunctioning, don’t worry.  Computer network help is available.  All you need to do is search out for a reputable technician and they will most likely be able to get your network running in no time. When you have professional help you can get professional results.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information that you might find helpful.</p>
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		<item>
		<title>Network Subnet Mask</title>
		<link>http://computernetworktraining.net/computer-network-training/network-subnet-mask/network-subnet-mask/</link>
		<comments>http://computernetworktraining.net/computer-network-training/network-subnet-mask/network-subnet-mask/#comments</comments>
		<pubDate>Mon, 12 Jul 2010 04:29:29 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Network Subnet Mask]]></category>
		<category><![CDATA[computer network]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[network address]]></category>
		<category><![CDATA[network subnet]]></category>
		<category><![CDATA[network training]]></category>
		<category><![CDATA[subnet mask]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=46</guid>
		<description><![CDATA[<p>A network subnet mask is needed in a network to tell the computer what part of the network address is network address and what part is host address.  Network address is common to all the computers on a network, but host address is unique to each computer.  It’s like a street address where every house [...]]]></description>
			<content:encoded><![CDATA[<p>A <strong>network subnet mask</strong> is needed in a network to tell the computer what part of the network address is network address and what part is host address.  Network address is common to all the computers on a network, but host address is unique to each computer.  It’s like a street address where every house on a street uses the same street name when addressing mail, but unique house numbers for each house.</p>
<p>Typical class C subnet mask is 32 bits where the first 24 bits are set to ones (or high) and the last 8 bits are set to zeros (or low).  The last 8 bits are the host address part and are set to zero so the computer knows that these bits are unique to each computer.  Without the subnet mask the computer would not know how to handle the IP address or how to route data.</p>
<p>Routers are the network devices that route data packets from network to network until the data is received by the computer that it was addressed to.  The router examines the data packet using the network subnet mask to determine the destination network address.  It then makes a decision on which port the send the data.  The last router is the gateway router for the destination network where the host portion of the address is used to deliver the packet to the appropriate computer.</p>
<p>A typical network class C IP address might look like 192.168.1.0  in decimal or 1100 1010 0001 0000 in binary.  The IP address when represented as a decimal number in divided in four 8-bit blocks separated by a dot.  This is a type of shorthand convenience and allows us to easily convert 32 bit binary numbers as decimal 8-bit numbers.  This way we only need to know 8 bit binary to decimal conversion.  Otherwise a 32-bit number would be very large and cumbersome to convert.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information you might find useful.</p>
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		<item>
		<title>VLAN Switches</title>
		<link>http://computernetworktraining.net/computer-network-training/vlan-switches/vlan-switches/</link>
		<comments>http://computernetworktraining.net/computer-network-training/vlan-switches/vlan-switches/#comments</comments>
		<pubDate>Sun, 13 Jun 2010 18:03:14 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[VLAN Switches]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[data trunking]]></category>
		<category><![CDATA[internet access]]></category>
		<category><![CDATA[network traffic]]></category>
		<category><![CDATA[network vlan]]></category>
		<category><![CDATA[trunked data]]></category>
		<category><![CDATA[vlans]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=43</guid>
		<description><![CDATA[<p>Network VLAN switches are very popular and widely implemented in larger businesses and corporations.  VLANs have the ability to group computers and network devices into their own common workgroup.  These provide network user security and separate network functions common to the group.  This also allows for separating network traffic for better bandwidth utilization.  Also provides [...]]]></description>
			<content:encoded><![CDATA[<p>Network <strong>VLAN switches</strong> are very popular and widely implemented in larger businesses and corporations.  VLANs have the ability to group computers and network devices into their own common workgroup.  These provide network user security and separate network functions common to the group.  This also allows for separating network traffic for better bandwidth utilization.  Also provides for priority traffic handling and isolating traffic that it using legacy or incompatible protocols.</p>
<p>VLANs can also duplicate company work groups over large or distant geographical areas.  So workers in California and workers in New York would see the same network devices available to each group no matter where the worker is located.  This provides easy transitions for workers or travelers between locations.</p>
<p>Data trunking for all work groups allows the transmission of trunked data over leased lines between geographic areas.  (Trunked lines are lines that contain all the VLAN traffic.)  The VLAN devices are then able to separate the trunked data back into separate company work groups.  A problem using VLANs results when different workgroups need to communicate or receive data or mail from a common server.  A router is needed to connect workgroups together or to connect workgroups to a common network device or common server.</p>
<p>VLANS or VLAN switches could also be used to provide Internet access for visitors with minimal network access.  This provides needed Internet access for visitors and safety and security of company data and network drives.  Also VoIP phone data can be prioritized and kept on its own VLAN to help provide better bandwidth for voice communication and prevent congestion of normal company data traffic.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information that you might find useful.</p>
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		<title>Network Routers</title>
		<link>http://computernetworktraining.net/computer-network-training/network-routers/network-routers/</link>
		<comments>http://computernetworktraining.net/computer-network-training/network-routers/network-routers/#comments</comments>
		<pubDate>Sat, 29 May 2010 21:35:42 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Network Routers]]></category>
		<category><![CDATA[computer network routers]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[network router]]></category>
		<category><![CDATA[network router settings]]></category>
		<category><![CDATA[network training]]></category>
		<category><![CDATA[router]]></category>
		<category><![CDATA[routers]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=41</guid>
		<description><![CDATA[<p>Computer network routers have certainly changed over the last few years, as technology has been forging ahead and making large headway.   If you are looking into purchasing a new router, there are a few things to consider before doing so. The first thing to think about is the type of speed you need in a [...]]]></description>
			<content:encoded><![CDATA[<p>Computer <strong>network routers</strong> have certainly changed over the last few years, as technology has been forging ahead and making large headway.   If you are looking into purchasing a new router, there are a few things to consider before doing so. The first thing to think about is the type of speed you need in a router.  Too many people don’t realize that a router can usually handle blazing fast speeds, but the speed is completely limited on the type of network device on your computer.  What we mean by this is that if you have a wireless 54mbit card on your computer, you will only be able to transfer at 54 Mbits /second even if the router can do a gigabyte a second.  Just buying a faster router will not speed up your network unless you also upgrade the associated hardware on your devices that communicate with the router.</p>
<p>Network routers basically take the Internet signal that you have coming in and spreads it to devices within a business or within a home.  The network router is essentially the brain that keeps track of which devices need information and spreads the Internet to all the devices when it needs it.  A network router is actually amazing device, but they do require some initial setup.  Most routers can be setup by accessing them through your web browser.  Most network routers have a static IP that you can type into your browser to be able to change the settings.  Network router settings give you the ability to change security codes and change the wireless security if your network router supports wireless communication.</p>
<p>Today, most routers support wireless capability.  This is great because you can access the Internet or network files without the use of wires.  Because most Internet signals are broadcast in a wireless format, it is important to make sure you set the security settings on the router.  If you don’t password protect your router, anyone will be able to connect to your router and use your Internet.  This will slow down your Internet speed as the Internet is being shared across more devices.  To make sure you have optimum speed and better security with your network files, always password protect your network router if you are running it in a wireless type mode.</p>
<p>As you can see, network routers are amazing devices, but how well they work depends on you and your equipment.  By changing the network router settings to make sure security is enforced, you will have a much greater experience using a router.</p>
<p>The <a href="http://computernetworktraining.net" target="_blank">Computer Network Training</a> website has additional information you might find useful.</p>
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		<title>Computer Network Training</title>
		<link>http://computernetworktraining.net/computer-network-training/computer-network-training/</link>
		<comments>http://computernetworktraining.net/computer-network-training/computer-network-training/#comments</comments>
		<pubDate>Sat, 02 Jan 2010 05:35:40 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[computer network certification]]></category>
		<category><![CDATA[computer network maintenance]]></category>
		<category><![CDATA[computer network management]]></category>
		<category><![CDATA[computer network repair]]></category>
		<category><![CDATA[computer network security]]></category>
		<category><![CDATA[computer network services]]></category>
		<category><![CDATA[computer network support]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=33</guid>
		<description><![CDATA[<p>IT (Internet technology) jobs require computer network training and certification.</p>
<p class="wp-caption-text">CompTIA Network+</p>
<p>Computer Network Certification</p>
<p>To begin you should obtain the CompTIA A+ certification.  Most employers are very familiar with the A+ cert and require all new employees to have it.  A+ cert is even more highly regarded for entry level computer tech work than college degrees.  [...]]]></description>
			<content:encoded><![CDATA[<p>IT (Internet technology) jobs require <a href="http://computernetworktraining.net" target="_blank"><strong>computer network training</strong></a> and certification.</p>
<div id="attachment_37" class="wp-caption alignright" style="width: 310px"><a href="http://computernetworktraining.net/wp-content/uploads/2010/01/Network+.jpg"><img class="size-medium wp-image-37" title="Network+" src="http://computernetworktraining.net/wp-content/uploads/2010/01/Network+-300x69.jpg" alt="" width="300" height="69" /></a><p class="wp-caption-text">CompTIA Network+</p></div>
<p><strong>Computer Network Certification</strong></p>
<p>To begin you should obtain the CompTIA A+ certification.  Most employers are very familiar with the A+ cert and require all new employees to have it.  A+ cert is even more highly regarded for entry level computer tech work than college degrees.  Employers know that individuals with A+ certification can work on and fix computers.  The next certification you should consider is the CompTIA Network+ which is also highly regarded in the IT field.  After obtaining those two certs you should consider either the Microsoft MSCE track or the Cisco CCNA track.  Either of these two highly prized certs can move you along quickly to the higher paying positions.</p>
<p><strong>Computer Network Security</strong></p>
<p>Network security has become a major concern, especially with wireless networks.  Wireless needs extra security controls to assure good security, such as, MAC filtering and good encryption.</p>
<p><strong>Computer Network Support</strong></p>
<p>Good support is essential for monitoring, maintenance, and management.  Network techs,  analysts, and administrators are need to assure proper performance.</p>
<p><strong>Computer Network Services</strong></p>
<p>There are many network services that should be provided, such as, email, file, data, and application sharing, print sharing, and Internet access are the basics.</p>
<p><strong>Computer Network Management</strong></p>
<p>A good administrator can manage the network to assure only authorized individuals and services are available to appropriate individuals.  Access should be limited and authorized only with proper credentials.</p>
<p><strong>Computer Network Repair</strong></p>
<p>Network repair is an ongoing concern.  Cabling, hardware, and software may need periodic updates and replacing.  Scheduling repairs to minimize work interruptions is an important concern.</p>
<p><strong>Computer Network Maintenance</strong></p>
<p>Network maintenance needs to be scheduled and performed.  This will help to optimize hardware life and performance.  Cleaning helps to reduce heat buildup that can shorten component life.</p>
<p><strong><br />
</strong></p>
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		<title>OSI Model</title>
		<link>http://computernetworktraining.net/computer-network-training/osi-model/osi-model/</link>
		<comments>http://computernetworktraining.net/computer-network-training/osi-model/osi-model/#comments</comments>
		<pubDate>Sun, 13 Dec 2009 04:33:32 +0000</pubDate>
		<dc:creator>gf</dc:creator>
				<category><![CDATA[OSI Model]]></category>
		<category><![CDATA[application layer]]></category>
		<category><![CDATA[Computer Network Training]]></category>
		<category><![CDATA[data link layer]]></category>
		<category><![CDATA[network layer]]></category>
		<category><![CDATA[physical layer]]></category>
		<category><![CDATA[presentation layer]]></category>
		<category><![CDATA[session layer]]></category>
		<category><![CDATA[seven layers]]></category>

		<guid isPermaLink="false">http://computernetworktraining.net/?p=20</guid>
		<description><![CDATA[<p>The OSI Model is composed of seven layers that make up the model.  Each layer is important to understand for proper understanding of network concepts of data packet creation and control.  The layers start with Physical layer and end with the Application layer.</p>
<p>Physical Layer</p>
<p>The Physical layer is where the data is either put onto the [...]]]></description>
			<content:encoded><![CDATA[<p>The <strong>OSI Model</strong> is composed of seven layers that make up the model.  Each<img class="alignright size-full wp-image-24" title="osi layer functions" src="http://computernetworktraining.net/wp-content/uploads/2009/12/osi-layer-functions1.bmp" alt="OSI Model" width="302" height="195" /> layer is important to understand for proper understanding of network concepts of data packet creation and control.  The layers start with Physical layer and end with the Application layer.</p>
<p><strong>Physical Layer</strong></p>
<p>The Physical layer is where the data is either put onto the media or received off the media.  The media could be the network cable or wireless.  The data is in the form of bits and is called Bits as the PDU (protocol data unit).  These bits can be voltage levels that represent binary numbers of 1 or 0.  They could also be light pules traveling on a fiber optic cable or radio wave pulses for a wireless network.</p>
<p><strong>Data Link Layer</strong></p>
<p>The Data Link layer is where framing of the data takes place.  The Frame is the PDU name at this layer.  The MAC (media access control) physical address is added or removed depending on which direction the data is traveling.  The MAC address is used by switches to switch the data to the appropriate computer or node that it is intended for in a LAN (local area network).</p>
<p><strong>Network Layer</strong></p>
<p>The Network layer is where the IP (internet protocol) address is added or removed and the PDU at this layer is called a Packet.  Routers operate at this level and use the IP (logical address) to route the data to the appropriate network.  Network locations are found by the routers using routing tables to locate the appropriate networks.</p>
<p><strong>Transport Layer</strong></p>
<p>The Transport layer is where the data is segmented (broken into pieces) and used by the TCP protocol to ensure accurate and reliable data is transferred.  The data segments are numbers so that proper sequencing can be determined on the receiving side in order to rebuild accurate files.  The PDU name at this layer is called Segment.</p>
<p><strong>Session Layer</strong></p>
<p>The Session layer is where the session is created, maintained, and torn-down when finished.</p>
<p><strong>Presentation Layer</strong></p>
<p>The Presentation layer is where the data is formatted or decrypted into files that the user can understand.</p>
<p><strong>Application Layer</strong></p>
<p>The Application layer is the user interface to the network where that data is either being generated or received.</p>
<p>The study of <a href="http://computernetworktraining.net/" target="_blank">Computer Network Training</a> and the<a href="http://computernetworktraining.net/category/computer-network-training/osi-model/" target="_blank"> OSI Model</a> can help you to prepare for certification and employment is this exciting field.</p>
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