Answer:
AIfirewallIisIaIcombinationIofIspecializedIhardwareIandIsoftwareIthatIensuresIthatIonlyIauthorized
I
personnelIcanIaccessIandIuseIanIorganization'sIintranet.
Answer:
AIcomputerInetworkIthatIconnectsItwoIorImoreILANsIorICANsItogetherIbutIwithinItheIboundaries
I I I
of a townIorIcity.IAnIexampleIofIaIMANImightIbeIaIbankIwithIdifferentIbranchIlocationsIthrough
outIaImetropolitanIareaIthatIareIallIconnected.
Answer:
ComputerInetworksIthatIencompassIaIwideIgeographicalIareaIandIconnectILANs,ICANs,IandIMA
NsItogether.IOften,IWANsIrelyIonIaItelephoneIcompany'sItransmissionIfacilitiesItoIconnectItheIsm
allerInetworksItogether.IManyIlargeIorganizationsIrelyIonIWANsItoIcentralizeIdataIandIinformatio
nIinIaImainIofficeIandIthenIhaveItheIcapabilityItoIdisseminateIthatIinformationInationwide,IorIeven
I
worldwide.IForIexample,IairlinesIrelyIonIWANsItoIprovideIticketingIagentsIwithIaccessItoIallIflig
htIinformation.ITheIairlineIisIanIexampleIofIaInetworkIwithIagentsIconnectedIusingIwhatIareIreferr
edItoIasI"dumb"Iterminals.IAIdumbIterminalIcanIbeIbestIdefinedIasIaIcomputerIwhoseIsoleIpurpos
eIisItoIconnectItoItheInetworkIandInothingIelse.
QUESTION
WhatIisIaITrojanIhorse?
Answer:
aITrojanIhorseIisIaIprogramIthatIseemsIharmlessIandIpossiblyIinterestingIatIfirstIuntilIitIisIexecuted
.IWhenItheIprogramIisIexecuted,IitImayIreleaseIoneIorImanyIharmfulIviruses,Iworms,IorIanyIotherI
sortIofImaliciousIprograms.IAIparticularIcomputerIactionIorIevenIaIparticularIdateIcanIinitiateIthe
m.
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