The Seven Layers of the OSI Model Kevin Ludwig Bryant and Stratton College TECH 140 Khaled Sabha 12.08.2009 There are seven layers in the OSI model. Each layer has a function or purpose that is used to set up a network. The International Organization for Standardization began to develop the OSI framework in 1984. The purpose was to have each layer interact with the layer directly beneath it. The layers are starting from the top: Application‚ Presentation‚ Session‚ Transport‚ Network
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knows a lot about the Earth ( including its layers)‚ and its environment. Layla- Shy‚ kind‚ sweet‚ genuine‚ generous‚ calm‚ intelligent‚ and self thought. Luna- Smart‚ knowledgeable‚ likes to speak a lot‚ funny‚ and really collaborative. Stella- Gets distracted easily‚ really fashionable‚ loves to look stylish‚ really helpful‚ and kind. Hannah- Very girly‚ loves to shop‚ dress up fancy‚ and really into makeup. Introduction Group Member: Ali Earth Layer: Crust Summary: There are 5 teenage girls
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target protocols to exploit are the Address Resolution Protocol (ARP)‚ and the Domain Name System (DNS). Steps have been taken to make these protocols more secure in order to prevent MitM attacks. Furthermore‚ the Transport Layer Security (TLS) (and its predecessor‚ Secure Sockets Layer (SSL)) mitigate the risk from MitM attacks over the internet. One of the more targeted protocols to exploit is the Address Resolution Protocol (ARP). This protocol converts
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------------------------------------------------- Apollo program From Wikipedia‚ the free encyclopedia Apollo 11 crew member Buzz Aldrin‚ second person to walk on the Moon‚ July 1969 The Apollo program was the third human spaceflight program carried out by the National Aeronautics and Space Administration (NASA)‚ the United States’ civilian space agency. First conceived during the Presidency of Dwight D. Eisenhower as a three-man spacecraft to follow the one-man Project Mercury which put the
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4. The Medium Access Sub Layer Broadcast channels [or multi-access channels] are a category of networks and the key issue is how to determine who gets to use the channel when there is competition for it. The protocols which define these factors belong to a sub layer of data link layer called the MAC(medium access control)sub layer. ALOHA: Norman Abramson devised a new and elegant method to solve the channel allocation problem called the “ALOHA” system which used ground-based Radio broad
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Layer 2 Domains Paper Layer 2 Domains Paper We have chosen an extended star topology connection using a router to designate the VLANS and two 24 port switches to provide the most cost effective setup for this small office network. Being the very small nature of the setup we are using a class C network of 192.168.0.1 that we will designate the first 20 IP addresses of each VLAN as static to support any servers we might install as well as printers we may install in the future. The other
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Application Layer is launched when an application operation starts. It starts the communication with another computer when an application starts. It is in software packages that use client-server software. Examples of services within this layer are DNS‚ web browser‚ and NFS. The Presentation Layer decides how to format the data and the encryption if any is used it formulates the data so that it is acceptable to the layer above. This layer gives functionality between the host OS and software layers. Basically
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Patton-Fuller Community Hospital IT Department Patton-Fuller Community Hospital IT Department In order for an organization to be able to have an efficient and successful organization the proper Information Technology system (IT) must be in place‚ this document will demonstrate what system is in place to make sure system is running successfully. Patton-Fuller Community Hospital is a prominent hospital that is known for specializing in pharmacy‚ radiology‚ surgery‚ and physical therapy. This
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photo. "The orange layer is the troposphere‚ where all of the weather and clouds which we typically watch and experience are generated and contained. This orange layer gives way to the whitish Stratosphere and then into the Mesosphere."[1] Atmosphere diagram showing stratosphere. The layers are to scale: from Earth’s surface to the top of the stratosphere (50km) is just under 1% of Earth’s radius. (click to enlarge) The stratosphere (/ˈstrætəsfɪər/) is the second major layer of Earth’s atmosphere
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the network controls and connections on a computer running Windows 7. 3. A device that connects one network to another is called a . 4. The most common method for illustrating the operations of a networking stack is the ‚ which consists of layers. 5. Protocols that do not guarantee delivery of their data‚ but do operate with a very low overhead that conserve network bandwidth are called . 6. The Windows 7 command-line utility that can tell you if the TCP/IP stack of another system on
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