chapter 7
5 primary networking elements
-network categories -network protocols -network providers -network convergence -network access technologies
4 challenges associated with wireless networks
-preventing viruses on mobile devices -addressing privacy concerns with RFID and LBS -Protecting wireless connections -protecting against theft
worldwide interoperability for microwave access (WiMAX)
a communications technology aimed at providing high speed wireless data over metropolitan area networks
wireless LAN (WLAN)
a local are network that uses radio signals to transmit and receive data over distances of a few hundred feet
wireless fidelity (Wi-Fi)
a means by which portable
streaming
a method of sending audio and video files over the internet
wireless MAN (WMAN)
a metropolitan are network that uses radio signals to transmit and receive data
3G
a service that brings wireless broadband to mobile phones
file transfer protocol (FTP)
a simple network protocol that allows the transfer of files between two computers on the internet
satellite
a space station that orbits the earth receiving and transmitting signals from earth based stations over a wide area
protocol
a standard that specifies the format of data as well as the rules to be followed during transmission
IP address
a unique number that identifies where the form of xxx.xxx.xxx.xxx through each grouping can be as short as a single digit
wireless WAN (WWAN)
a wide area network that uses radio signals to transmit and receive data
configuration protocol (DHCP)
allows dynamic IP address allocation so users do not have to have a preconfigured IP address to use the network
Domain name system (DNS)
convert IP addresses into domains, or identifying labels that use a variety of recognizable naming conventions
Internet Protocol TV (IPTV)
distributes digital video content using IP across the Internet and private IP networks
wireless access point
enables devices to connect ti a wireless network to communicate with each other
standard packet formats
include a packet header, packet body containing the original message and a packet footer
packet header
lists the destination (for example, in the IP packets the destination is the IP address) along with the length of the message data
3 measurements of bandwidth
megabits, gigabits, kilobits
multiple-in/multiple-out technology
multiples transmitters and receivers allowing them to send and receive greater amounts of data than traditional networking devices
asset tracking
occurs when a company places active or semi-passive RFID tags on expensive products or assets to gather data on the items location with little or no manual intervention
smart phone
offer more advanced computing ability and connectivity than basic cell phones
personal area networks (PAN)
provide communication over a short distance that is intended for use with devices that are owned and operated by a single user
transmission control protocol/internet protocol (TCP/IP)
provides the technical foundation for the public internet as well as for large numbers of private networks
packet footer
represents the end of the packet or transmission end
packet
single unit of binary data routed through a network
broadband over power line (BPL)
technology makes possible high -speed internet access over ordinary residential electric lines and offers and alternative to DSL high speed cable modems
access point
the computer or network device that serves as an interface between devices and the network
network convergence
the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not poss
voice over IP (VoIP)
uses IP technology to transmit telephone calls
bluetooth
wireless PAN technology that transmits signals over short distances between cell phones, computers and other devices
