Specifications

APPENDIXA:GLOSSARY
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802.11–TheInstituteofElectricalandElectronicEngineers(IEEE)hascreatedanumberof
wirelessstandards.Thishelpstoinsurethatproductsbuilttocomplywithaspecificstandard
areinteroperablewithoneanotherevenifmanufacturedbydifferentcompanies.
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802.11b–Specifiesamaximumdatatransferrateof11Mbps,anoperatingfrequencyof2.4
GHz,andWEPencrypionforsecurity.CommonlyreferredtoasWi‐Fi.
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802.11g–Specifiesamaximumdatatransferrateof54Mbps,anoperatingfrequencyof2.4
GHzandisbackwardscompatiblewith802.11b.CommonlyreferredtoasWi‐Fi.
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AccessPoint–Aninterworkingdevicethatseamlesslyconnnectswiredandwirelessnetworks
together.
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Ad‐Hoc–AnAd‐HocwirelessLANisagroupofcomputers,eachwithaWLANcard,connected
asanindependentwirelessLAN.Ad‐HocwirelessLANisapplicableatadepartmentalscalefor
branchSOHOoperation.
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BSS–BasicServiceSetisan802.11interworkingframeworkthatincludesanAccessPoint.
ComputersinaBSSmustbeconfiguredwiththesameBSSID.
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CTS(CleartoSend)–AnRS‐232signalsentfromthereceivingstationtothetransmitting
stationthatindicatesisisreadytoacceptdata.
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Client–AworkstationorPConanetwork.
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DefaultGateway–TheIPAddressofeitherthenearestrouterorserverfortheLAN.
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DHCP–DynamicHostConfigurationProtocolisamethodinwhichIPaddressesareassigned
fromapoolofIPaddressesbyaserverdynamicallytoclientsonthenetwork.DHCPisusedfor
DynamicIPAddressingandrequiresadedicatedDHCPserveronthenetwork.
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DNS–DomainNameSystemisusedtomapreadablemachinenames(Internetdomainnames)
intoIPaddresses.
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DSSS–DirectSequenceSpreadSpectrumisamethodthewirelesscardsusetotransmitdata
overthefrequencyspectrum.Theothermethodisfrequencyhopping.Directsequencespreads
thedataoveronefrequencyrange(channel)whilefrequencyhoppingjumpsfromonenarrow
frequencybandtoanothermanytimespersecond.
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