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NCTI FINAL EXAM: PROGRESSION FIELD TECH 2- 3 TEST EXAM| NEWLY UPDATE 2023/ 2024

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NCTI FINAL EXAM: PROGRESSION FIELD TECH 2- 3 TEST EXAM| NEWLY UPDATE 2023/ 2024 What does the "on with threshold" setting of the Request to send/clear to send (RTS/CTS) protocol allow the wireless local area network (WLAN) administrator to control? Answer: To control which frames over a certain size are announced and cleared to send by the stations. What is the purpose of the distributed coordination function (DCF) in an Institute of Electrical and Electronics Engineers (IEEE) 802.11 wireless local area network (WLAN)? Answer: It allows all clients on a WLAN to contend for access on the shared radio frequency (RF) transmission medium using the carrier sense multiple access with collision avoidance (CSMA/CA) protocol. What can be done to increase the coverage area of a wireless local area network (WLAN)? Answer: Increase the transmission power, replace the omnidirectional antenna with a parabolic antenna, and use the 2.4 GHz radio band instead of the 5 GHz radio band. What are the three main conditions that influence the range of a wireless local area network (WLAN)? Answer: Transmission power, antenna type and location, and environment. what causes co-channel interference in a wireless local area network (wlan)? Answer: An overlap in the signal ranges of access points (AP) or different WLANs operating on the same channels. What test instrument is used to locate and measure interfering narrowband radio frequency (RF) signals in an Institute of Electrical and Electronic Engineers (IEEE) 802.11 wireless local area network (WLAN), among other things? Answer: spectrum analyzer You wish to build a wireless network that provides significantly better throughput than a single Institute of Electrical and Electronic Engineers (IEEE) 802.11b access point (AP). Which of the following is an acceptable solution? Answer: Use IEEE 802.11-compliant equipment operating in the 5 gigahertz (GHz) Unlicensed National Information Infrastructure (U-NIl) bands, allowing for more more non-overlapping channels. Which one of the following tasks is the best choice for troubleshooting the near/far problem? Answer: Review the location of the stations (clients) on the network. Which one of the following conditions occurs when an access point (AP) receives a distant client's signal at a lower power level than that of a nearer client? Answer: near/far How might you confirm the presence of a hidden node on the network? Answer: Turn on the request to send/clear to send (RTS/CTS) protocol and watch for increased network data throughput.

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  • ncti field tech 2 3
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  • ncti final exam progression field tech 4 5 test exam| latest update 2023 2024| verified solutions

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NCTI FINAL EXAM: PROGRESSION
FIELD TECH 2- 3 TEST EXAM| NEWLY
UPDATE 2023/ 2024
WhatIdoesItheI"onIwithIthreshold"IsettingIofItheIRequestItoIsend/clearItoIsendI(RTS/CTS)Ipro
tocolIallowItheIwirelessIlocalIareaInetworkI(WLAN)IadministratorItoIcontrol?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IToIcontrolIwhichIframesIoverIaIcertainIsizeIareIannouncedIand
IclearedItoIsendIbyItheIstations.



WhatIisItheIpurposeIofItheIdistributedIcoordinationIfunctionI(DCF)IinIanIInstituteIofIElectrical
IandIElectronicsIEngineersI(IEEE)I802.11IwirelessIlocalIareaInetworkI(WLAN)?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IItIallowsIallIclientsIonIaIWLANItoIcontendIforIaccessIonItheIs
haredIradioIfrequencyI(RF)ItransmissionImediumIusingItheIcarrierIsenseImultipleIaccessIwithI
collisionIavoidanceI(CSMA/CA)Iprotocol.



WhatIcanIbeIdoneItoIincreaseItheIcoverageIareaIofIaIwirelessIlocalIareaInetworkI(WLAN)?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IIncreaseItheItransmissionIpower,IreplaceItheIomnidirectionalIa
ntennaIwithIaIparabolicIantenna,IandIuseItheI2.4IGHzIradioIbandIinsteadIofItheI5IGHzIradioIb
and.



WhatIareItheIthreeImainIconditionsIthatIinfluenceItheIrangeIofIaIwirelessIlocalIareaInetworkI(
WLAN)?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:ITransmissionIpower,IantennaItypeIandIlocation,IandIenvironme
nt.



whatIcausesIco-channelIinterferenceIinIaIwirelessIlocalIareaInetworkI(wlan)?

,IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IAnIoverlapIinItheIsignalIrangesIofIaccessIpointsI(AP)IorIdiffer
entIWLANsIoperatingIonItheIsameIchannels.



WhatItestIinstrumentIisIusedItoIlocateIandImeasureIinterferingInarrowbandIradioIfrequencyI(R
F)IsignalsIinIanIInstituteIofIElectricalIandIElectronicIEngineersI(IEEE)I802.11IwirelessIlocalIa
reaInetworkI(WLAN),IamongIotherIthings?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IspectrumIanalyzer



YouIwishItoIbuildIaIwirelessInetworkIthatIprovidesIsignificantlyIbetterIthroughputIthanIaIsingl
eIInstituteIofIElectricalIandIElectronicIEngineersI(IEEE)I802.11bIaccessIpointI(AP).IWhichIofI
theIfollowingIisIanIacceptableIsolution?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IUseIIEEEI802.11-
compliantIequipmentIoperatingIinItheI5IgigahertzI(GHz)IUnlicensedINationalIInformationIInfr
astructureI(U-NIl)Ibands,IallowingIforImoreImoreInon-overlappingIchannels.



WhichIoneIofItheIfollowingItasksIisItheIbestIchoiceIforItroubleshootingItheInear/farIproblem?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IReviewItheIlocationIofItheIstationsI(clients)IonItheInetwork.



WhichIoneIofItheIfollowingIconditionsIoccursIwhenIanIaccessIpointI(AP)IreceivesIaIdistantIcli
ent'sIsignalIatIaIlowerIpowerIlevelIthanIthatIofIaInearerIclient?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:Inear/far



HowImightIyouIconfirmItheIpresenceIofIaIhiddenInodeIonItheInetwork?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:ITurnIonItheIrequestItoIsend/clearItoIsendI(RTS/CTS)IprotocolI
andIwatchIforIincreasedInetworkIdataIthroughput.

, HowIdoIyouItroubleshootIaIhiddenInode?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:ITestIforIdegradedIdataIthroughputIatIallIclientIlocations.



WhatIcausesItheIhiddenInodeIproblemIinIaIwirelessIlocalIareaInetworkI(WLAN)?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IWhenIaIclientI(orInode)IcanIreceiveIsignalsIfromIanIaccessIpoi
nt
(AP)IbutIanIobstacleIpreventsItheIclientIfromIreceivingIsignalsIfromItheIotherIclientsIthatIareI
connectedItoItheInetwork.



ToIpreventIhackerIaccessItoIpasswordsIandIInternetIprotocolI(IP)Iaddresses,IwhyIwouldIyouIw
antItoIplaceIwirelessIaccessIpointsI(AP)IonIswitchesIinsteadIofIhubs?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:ISwitchesIpreventItheIbroadcastIofIpacketsItoIallInetworkIsegm
ents.



ForImaximumIsecurity,IyouIshouldIbaseIyourIwirelessIlocalIareaInetworkI(WLAN)IuserIauthe
nticationIonIwhichIoneIofItheIfollowing?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IDevice-
independentIschemes,IsuchIasIuserInamesIandIpasswords.



HowImightIaIwirelessIlocalIareaInetworkI(WLAN)IadministratorIensureIcomplianceIwithIsecur
ityIaudits?


IIIIIIIIIIIIIIIIIIIIIIIIIIIAnswer:IDocumentIauditIproceduresIinItheIsecurityIpolicy.
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