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13 Cards in this Set
- Front
- Back
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Connection establishment |
The process by which a connection-oriented protocol creates a connection. With TCP, a connection is established by a three-way transmission of TCP segment. |
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Error detection |
The process of discovering whether a data link level frame was changed during transmission. This process typically uses a Frame Check Sequence (FCS) field in the data link header. |
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Error recovery |
The process of noticing when some transmitted data was not successfully received and resending the data until it is successfully received. |
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Flow control |
The process of regulating the amount of data sent by a sending computer toward a receiving computer. Several flow control mechanisms exist, including TCP flow control, which uses windowing. |
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Forward acknowledgement |
A process used by protocols that do error recovery, in which the number that acknowledges data lists the next data that should be sent, not the last data that was successfully received. |
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HTTP |
Hypertext Transfer Protocol. The protocol used by web browsers and web servers to transfer files, such as text and graphic files. |
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Ordered data transfer |
A networking function, included in TCP, in which the protocol defines how the sending host should number the data transmitted, defines how the receiving device should attempt to reorder the data if it arrives out of order, and specifies to discard the data if it cannot be delivered in order. |
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Port |
In TCP and UDP, a number that is used to uniquely identify the application process that either sent (source port) or should receive (destination port) data. In LAN switching, another term for switch interface. |
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Segment |
In TCP, a term used to describe a TCP header and its encapsulated data (also called an L4PDU). Also in TCP, the process of accepting a large chunk of data from the application layer and breaking it into smaller peices that fit into TCP segments. In Ethernet, a segment is either a single Ethernet cable or a single collision domain (no matter how many cables are used). |
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Sliding windows |
For protocols such as TCP that allow the receiving device to dictate the amount of data the sender can send before receiving an acknowledgment - a concept called a window - a reference to the fact that the mechanism to grant future windows is typically just a number that grows upward slowly after each acknowledgement, sliding upward. |
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URL |
Uniform Resource Locator. A standard for how to refer to any piece of information retrievable via a TCP/IP network, most notably used to identify web pages. |
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VoIP |
Voice Over IP. The transport of voice traffic inside IP packets over an IP network. |
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Web server |
Software, running on a computer, that stores web pages and send those web pages to web clients (web browsers) that request the web pages. |
