Term
| 1.The user sends data from an application to the application layer |
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Definition
1. 2. The application layer adds the application layer header to the data and then sends it to the presentation layer. |
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Term
1. 3.The presentation layer adds the presentation layer header to the data from the application layer and then sends it to the session layer. At this step the data has two headers. Example… the application layer header and the presentation layer header. |
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Definition
1. 4. The session layer adds the session layer header to the data from the presentation layer and then sends it to the transport layer. At this step the data has three headers. Example… the application layer header, presentation layer header and the session layer header. |
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Term
1. 5. The transport layer adds the transport layer header to the data from the session layer and then sends it to the network layer. At this step the data has four headers. Example… the application layer header, presentation layer header, session layer header and the transport layer header. |
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Definition
1. 6. The network layer adds the network layer header to the data from the transport layer and then sends it to the data link layer. At this step the data has five headers. Example… the application layer header, presentation layer header, session layer header, transport layer header and the network layer header. |
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Term
1. 7. The data link layer adds the data link layer header and trailer to the data from the network layer. The trailer that is added at the data link layer is usually the Frame Check Sequence (FCS), which is used by the receiver to detect whether the data is in error. The data is then sent to the physical layer. At this step the data has six headers. Example… the application layer header, presentation layer header, session layer header, transport layer header, network layer header and the data link layer header. |
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Definition
1. 8. The physical layer then transmits the bits onto the networks media that is connecting the sender and the receiver. |
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Term
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Definition
| Segments- TCP/UDP, port #’s |
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Term
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Definition
| Frames- Ethernet, Switching, MAC addresses |
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Term
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Definition
| Application: Represents data to the user, plus ending dialog control. |
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Term
| Transport: Supports communication between diverse devices across diverse networks. |
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Definition
| Internet: Determines the best path through the network. |
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Term
| Network Access: Controls the hardware devices and media that make up the network. |
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Definition
Data...Application
*Application
*Presentation
*Session |
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Term
Segment...Transport
*Transport |
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Definition
Packets...Internet
*Network |
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Term
Frames/ Bits...Network Access
*data link
*physical |
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Definition
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