Term
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Definition
| Application, Transport, Internetwork, Data Link, Physical |
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Term
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Definition
| 7 Application, 6 Presentation, 5 Session, 4 Transport, 3 Network, 2 Data Link and 1 Physical |
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Term
| Application layer protocol example |
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Definition
| Telnet, HTTP, FTP, SMTP, POP3, VoIP, SNMP |
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Term
| Transport layer protocol example |
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Definition
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Term
| Internetwork layer protocol example |
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Definition
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Term
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Definition
| Application- Interface between the communications software and the applications. Also does user authentication. |
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Term
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Definition
| Presentation- Define and negotiate data formats (e.g., ASCII). Also covers encryption. |
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Term
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Definition
| Session- Defines how to start, control and end conversations. |
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Term
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Definition
| Transport – Focuses on data delivery to another computer (e.g., error recovery and flow control) |
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Term
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Definition
| Network - Logical addressing, routing and path determination. |
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Term
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Definition
| Data Link - Defines rules that determine when a device can send data over a particular medium. Format for header and trailer that allows a device to successfully send and receive data. |
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Term
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Definition
| Physical - Physical characteristics such as medium, connectors, pins, electrical characteristics, encoding, modulation and rules to activate and deactivate the use of physical medium. |
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Term
| Data Link layer protocol example |
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Definition
| Ethernet (IEEE 802.3), HDLC, Frame Relay, PPP |
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Term
| PhysicaL layer protocol example |
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Definition
| RJ-45, EIA/TIA-232, V.35, Ethernet (IEEE 802.3) |
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Term
| Session - Application (L5 - L7) Device |
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Definition
| Firewall, intrusion detection systems, hosts |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| LAN switch, wireless access point, cable modem, DSL modem. |
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Term
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Definition
| LAN hub, LAN repeater, cables. |
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Term
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Definition
| All People Seem To Need Data Processing |
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Term
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Definition
Less complex – model broken into smaller parts
Standard interface – multiple vendors and open competition
Easier to learn- model broken into smaller parts
Easier to develop- model broken into smaller parts
Multiple Vendor Interoperability- equipment from multiple vendors can work in the same network.
Modular engineering- one vendor writes some layers, another vendor other layers. |
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Term
| Adjacent layer interaction |
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Definition
| the higher-layer asks for the next lower-layer protocol to perform the service; the lower layer provides a service to the layer above it. |
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Term
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Definition
| two computers set and interpret the information in the header used by that layer. Occurs between different computers. |
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