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transmission media

the means through which data is transmitted and received


a computer on a network that requests services or resources from another computer on a network


the scheme for assigning a unique identifying number to every node on a network


the device inside a computer that connect a computer to the network media


the physical layout of a computer network

data packets

the distinct units of data that are exchanged between nodes on a network


a standard method or format for communication between networked devices


the part of a network to which segments and significant shared devices connect

networks enable users to share resources

an advantage of networks

access services

services that allow remote users to connect to the network

communications services

service that supports email

management services

services that handle hardware diagnoses and failure alerts

soft skills

hard-to-define skills such as dependability

certification value may be lessened due to the number of people obtaining them

a drawback of certification

modifying the file-sharing controls

a common way of sharing resources on a peer-to-peer network


the most popular type of network for medium- and large-scale organizations

connectivity device

a specialized device that allows multiple networks or segments to connect and exchange data


a professional membership society that helps establish technical standards for the internet


produces guidelines for how network cable should be installed in commercial buildings


determines standards for the electronics industry and other fields, such as chemical and nuclear engineering, health and safety, and construction


international society composed of engineering professionals with goals of promoting development and education in the electrical engineering and computer science fields

network layer

translated network addresses into their physical counterparts

presentation layer

serves as a translator; manages data encryption

physical layer

generates signals as changes in voltage at the NIC

transport layer

manages end-to-end delivery of data

session layer

coordinates and maintains communications between two nodes on the network


the process of reconstructing segmented data


the process of determining the best path from Point A on one network to Point B on another


Data Link sublayer that manages flow control

logical address

a fixed number associated with a device's NIC

where NICs operate

Physical and Data Link layers


IEEE standard describing specifications for wireless transmissions


a specialized UN agency that provides developing countries with technical expertise and equipment

OSI model

describes a theoretical representation of what happens between two nodes communicating on a network


type of protocol useful when data must be transferred quickly

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