The fifth and top layer is the application layer. This is the program that you are using, such as HTTP for websites or FTP or BitTorrent for file transfers.
The internet as we know it would not exist or would be worthless if one of these layers was missing... Showed first 250 characters
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What I will be focusing on is the connection itself; not what makes it possible from a hardware point of view, or what makes it useful from a software point of you, but simply what it is and how it functions. The current incarnation of internet protocol (IP) is IPv4, which has been in use (with very few modifications) since 1981... Showed next 250 characters
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CFCs and the Ozone Layer (Report)
All of these useful products, however, came with a world-class risk. Scientists measuring chemicals in the stratosphere found that CFCs were damaging the ozone layer...
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Depletion Of The Ozone Layer
Ozone is a relatively unstable form of molecular oxygen containing three oxygen atoms produced when upper-atmosphere oxygen molecules are split by ultra violet light...
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OSI Model Security Memo
SUBJECT: Security and the OSI Model
The Open Systems Interconnect (OSI) Model is the basis on which network communications function. Every network application more or less adheres to the standards of the OSI Model...
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Article Summary Ozone Layer
Ozone: The Pollution Paradox
This article was based on information about ozone pollution. In my opinion this article gave a lot of valuable information and I learned a lot of things I never had knowledge of...
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The OSI Model
NTC/360 Network & Telecommunications Concepts
The OSI Model
The Open Systems Interconnection Reference Model (OSI) is the accepted model that describes the how the communications for a computer network should be designed...
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Issue on Ozone Depletion
The ozone layer is a layer in the stratosphere, which is about 15 and 30 kilometers in altitude, containing a relatively high concentration of ozone. The upper portion of the earth's atmosphere is called upper-level ozone...
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The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 93-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth...