Networking
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VeasnaYim
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180
Registration date
Tuesday June 18, 2013
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October 2, 2015
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Oct 23, 2013 at 10:16 AM
Blocked Profile - Oct 23, 2013 at 10:41 AM
Blocked Profile - Oct 23, 2013 at 10:41 AM
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1 response
Good Morning.
Please understand, all communications follow protocol. A computer network is a group of computers using the same protocol.
See here https://ccm.net/faq/2761-what-is-network-architecture
After you understand the 10,000 foot view, start breaking down the "model" of how a protocol is used.
You must be able to grasp and understand LAYERED networking as in the 7 layer OSI model. Under its official name, the Open Systems Interconnection Reference Model, or the OSI model, was developed by the International Organization for Standardization.
Any CCNA test wil test you extensively on your knowledge of the 7 layers and what happens in each layer. Start with your OSI model 7 layers, after you understand the different types of networks (wan,lan, man). Regardless of how it is writen, layer 1 is always physical, as in the following types:
*electric voltages (ethernet cable, hubs, repeaters)
*radio frequencies (wireless)
*pulses of infrared or ordinary light (ad hoc line of site)
Networking is networking. Now each hardware vendor will have a set of features within their own hardware that will accomplish different functions on the network. Although CISCO has the corner on the market, there are other vendors that make good routing products. Most of the time, when it comes to computer stuff, you have to take into account, what is already in place (leverage), and what do you know (experience).
One of the best thing that I used to love about being a network consulant for a certain vendor, I knew the other guys weak points, and I always wrote all of my REQUEST FOR PROPOSALS to state the fact the product had to do X, Y and Z. I knew the other guy could only do X, and Y, and never Z. We won everytime!
Have fun!
//ark
-Contributor
Please understand, all communications follow protocol. A computer network is a group of computers using the same protocol.
See here https://ccm.net/faq/2761-what-is-network-architecture
After you understand the 10,000 foot view, start breaking down the "model" of how a protocol is used.
You must be able to grasp and understand LAYERED networking as in the 7 layer OSI model. Under its official name, the Open Systems Interconnection Reference Model, or the OSI model, was developed by the International Organization for Standardization.
Any CCNA test wil test you extensively on your knowledge of the 7 layers and what happens in each layer. Start with your OSI model 7 layers, after you understand the different types of networks (wan,lan, man). Regardless of how it is writen, layer 1 is always physical, as in the following types:
*electric voltages (ethernet cable, hubs, repeaters)
*radio frequencies (wireless)
*pulses of infrared or ordinary light (ad hoc line of site)
Networking is networking. Now each hardware vendor will have a set of features within their own hardware that will accomplish different functions on the network. Although CISCO has the corner on the market, there are other vendors that make good routing products. Most of the time, when it comes to computer stuff, you have to take into account, what is already in place (leverage), and what do you know (experience).
One of the best thing that I used to love about being a network consulant for a certain vendor, I knew the other guys weak points, and I always wrote all of my REQUEST FOR PROPOSALS to state the fact the product had to do X, Y and Z. I knew the other guy could only do X, and Y, and never Z. We won everytime!
Have fun!
//ark
-Contributor
