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29 Cards in this Set
- Front
- Back
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SNA |
System Network Architecture |
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OSI |
Open Systems Interconnection |
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RFC |
Request for Comments |
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What is an RFC? |
The document that TCP/IP uses to request information from another machine. |
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TCP |
Transfer Control Protocol |
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IP |
Internet Protocol |
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Original TCP/IP Layers |
Application, Transport, Internet, Link |
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Modern TCP/IP Layers |
Application, Transport, Network, Data Link, Physical |
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Common Application Layer Protocols |
HTTP, SMTP, POP3 |
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Common Transport Layer Protocols |
TCP, UDP |
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Common Internet Layer Protocol |
IP |
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PPP |
Point to Point Protocol |
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Common Link Layer Protocols |
Ethernet, PPP, T1 |
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HTTP |
Hypertext Transfer Protocol |
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UDP |
User Datagram Protocol |
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What is SEQ? |
Sequence Number - The TCP header that assures that all packets are received. |
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Adjacent Layer Interaction |
On a single computer, one layer provides a service to a higherlayer. The software or hardware that implements the higher layerrequests that the next lower layer perform the needed function. |
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Same Layer Interaction |
The two computers use a protocol (an agreed-to set of rules)to communicate with the same layer on another computer.The protocol defined by each layer uses a header that istransmitted between the computers to communicate what eachcomputer wants to do. Header information added by a layerof the sending computer is processed by the same layer of thereceiving computer. |
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DDN |
Dotted-decimal notation |
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What step(s) happen in the Physical Layer? |
Bit Transmission |
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What step(s) happen in the Data Link Layer? |
Encapsulation, Addressing |
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What is Bit Transmission? |
The physical sending of data as electrical impulses |
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What is Encapsulation? |
The process of putting headers and/or trailers around data for addressing |
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What is Addressing? |
The Encapsulation of data with sender and destination information |
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LH |
Data Link Layer Link Header |
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LT |
Data Link Layer Link Trailer |
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Segment |
The TCP header and its data |
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Packet |
A grouping of data with no heading or trailer below the Network layer |
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Frame |
A packet of data with its full encapsulated headers and trailers |
