Networking 202 - Week 1, Ch. 1 & 2

Front 1

Network

Back 1

Collection of computers, printers, routers, switches, and other devices that can communicate with each other over some transmition medium.

Front 2

Intranet

Back 2

A corporate system such as a website that is explicitly used by internal employees. Can be accessed internally or remotely.

Front 3

Extranet

Back 3

Part of a companies intranet that is extended to users outside the company over the internet.

Front 4

Quality of Service

Back 4

A control mechinism that can provide different priorities to different users or data flows, or garantee a certain level of performance to data flow in accordance with requests from the application program.

Front 5

Priority Queuing

Back 5

A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.

Front 6

Channel

Back 6

A communication path over a medium used to transport information from a sender to a reciever. Multiple channels can be multiplexed over a single cable.

Front 7

encapsulation

Back 7

The process by which a device adds networking headers and trailers to data from an application for the eventual transmission of the data onto a transmition medium.

Front 8

decapsulation

Back 8

A process by which an end device, after it recieves some data over a transmition medium, examines the headers and trailers at each succesive higher layer. Eventually handing the data to the correct application.

Front 9

Open Systems Interconnection

Back 9

Internation standardization program created by ISO and ITU-T to develope standards for data networking that facilitates multivender equipment opperability.

Front 10

Protocols

Back 10

A written specification that defines what tasks a service or device should preform. Each protocol defines messeges, often in the form of headers, plus the rules and processes by which these messeges are used to achieve some stated purpose.