4/20/2015 BluetoothinterviewquestionsandanswersBluetoothFAQs

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Bluetoothinterviewquestionsandanswers

Wirelesscommunicationinterview

WhatisBluetooth?

Bluetoothisawirelesstechnologystandardusedtoexchangedataovershortdistances.Thedataisexchangedfromfixed..............Readanswer

Bluetoothiscalledacablereplacementtechnology.Explain.

BluetoothallowsPersonalAreaNetworkswithoutthecables.Itprovidesconnectivitytomanymobilesusersatatime.............Readanswer

ExplainaboutTCPflowcontrol.

TCPutilizesaflowcontrolprotocolfromoneendtoanotherendforavoidingthesendertosenddatatooquickly..............Readanswer

Explaintheworkingoftraceroute.

Tracerouteworksbyincreasingthetimetolivevalueofeverysuccessivepacketssentinbatch.Everythreepacketsthatweresentfirst...........Readanswer

WhatisPiconet?

Piconetisanadhocnetworkbylinkingagroupofuserswhichusesbluetoothtechnologyprotocolsforallowingonemasterdeviceto...........Readanswer

Explainthefollowingterms:ICMP,ARP,Multicast,Broadcast?

InternetControlMessageProtocol:Thisprotocolisusedforwhilecheckingtheconnectivityusingpingcommand...............Readanswer

ListoutthedifferencesbetweenUDPandTCP.

1.TCPisconnectionorientedprotocol,whereasUDPisconnectionlessprotocol...............Readanswer

Whatismeantbytheterm'IPSpoofing'?

IPSpoofing:SendingmessagesbyintrudertoacomputersystemwithanIPaddressthatindicatesthemessageissentfromatrustedhost...............Readanswer

WhatisRJ45?

RJ45standsforRegisteredJack45.Itisan8wireconnectorforconnectingcomputersystemsontoaLAN,especiallyEthernets.................Readanswer

WhichtechnologyisusedtoavoidinterferenceinBluetooth?Briefthetechnologyused

Bluetoothusesfrequencyhoppingtechnology.Inthistechnology,79hopfrequenciesaretransmittedandreceivedfrom2402to2480mhz.............Readanswer

WhatisTCPconnectionestablishmentandteardown?

ThefollowingistheprocessforTcpconnection:1.Asconnectionismadebysynchronizingsenderand

InterviewquestionsBluetooth

3G

CDMA

GSM

GPRS

TestNetworkingskillsNew

TestSQLServerskillsNew

TestOracleskillsNew

Networkingnotes

Applicationlayer

Datalinklayer

IPlayer

Ethernet

Firewall

Networktechnology

Protocols

Routers

Security

TCPlayer

VPN

Tunneling

Subneting

RTP

Multicasting

SocketProgramming

SecuredSocketLayer

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receiverandtheOSisinformedabouttheconnectionestablishment................Readanswer

Whatisthesignalstrengthtransmittedbycellphones?

Themagnitutudeoftheelectricfieldatareferencepoint,whichissignificantdistancefromthetransmittingantenna,isknownassignal...............Readanswer

WhatmethodisusedforVoicetransfer?Briefaboutthemethodused.

ForVoicetransfer,SCO(SynchronousConnectionOriented)linksareusedforgoodsynchronizationandreliability.............Readanswer

ExplainthemodulationtechniquesusedinBluetoothtechnology.

BluetoothusesFrequencyHoppingSpreadSpectrumtechniquewhichisusedinspreadspectrumsignaltransmission.Duringradiotransmission..............Readanswer

WhatarethetechnicalcharacteristicsofBluetooth?

ThefollowingarethetechnicalcharactersofaBluetoothdevice:..............Readanswer

Explaintheterm'Airport'inBluetooth.

Airportisstandard(802.11)andhasafastertransferrate.Technologicallyitismoreadvanced,moreruggedandsmallerandcapable...............Readanswer

WhatFECmeansinBluetooth?

FECstandsforForwardErrorCorrection.Onthedatapayload,FECreducingthenumberofretransmissions.Withinbluetooth...............Readanswer

HowfrequencyhoppingisusedforsecurityinBluetooth?

BluetoothtechnologyusesAdaptiveFrequencyHoppingandcapabletoreduceinterferencebetweenwirelesstechnologieswiththehelp.................Readanswer

ExplainhowdataistransferredthroughBluetooth.

ThePSIlinebluetoothinterfaceconvertersareusedmakingcomplexdataconnectionswithmobiledeviceswiththeutilizationofflexible..............Readanswer

ExplainhowBluetoothdevicesintegrateeasilywithTCP/IPnetwork?

BluetoothisanIEEE802.11standardandareplacementofwirednetwork.ItisinteroperableandworksasanAdoptedprotocol,...............Readanswer

WhyisBluetooth2.0betterthanpreviousversions?

Bluetooth2.0isbetterthanitspredecessorsbecause:1.Bluetooth2.0is3timesfasterthan1.2..............Readanswer

Definetheterm'Pairing'inBluetooth.

Pairingisthetermthatoccursatthepointwhen2Bluetoothdevicescommunicatewitheachotherbyestablishingaconnection...............Readanswer

ExplainthetermBluetoothSIG.

BluetoothSpecialInterestGroupisanonprofittradeassociation.Itdoesnotmake,selltheBluetoothenabledproducts................Readanswer

WhatkindofencryptionisusedforBluetoothsecurity?Explain

Theencryptionstandard8128bitslengthisusedforencryptioninBluetoothsecurity.Thisstandardpreventsreceivingthetransmission................

4/20/2015 BluetoothinterviewquestionsandanswersBluetoothFAQs

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Readanswer

WhatisaBluetoothdongle?

BluetoothdongleisatechnologythatenablesaPCforpointtomultipointfriendlyconnectivitywithothersimilarBluetoothdevices.................Readanswer

WhatdoyoumeanbythetermFrequencyHoppingSpreadSpectrum(FHSS)?

FlexibilityandmobilityarethegrowingreasonstousewirelessLANwhichusesradiofrequenciesfortransmittingdata.WirelessLANsare..............Readanswer

WhatisLDAPanditsuses?

LightweightDirectoryAccessProtocolisoneofthedirectoryserviceprotocols.ItrunsoverTCP/IP.LDAPdirectoryservicesimplements..............Readanswer

Explaintheterm'DOSattack'.

ADenialOfServiceattack.Itattemptsformakingcomputerresourcesunavailabletoitsintendedusers.Itsconcertedeffortsofapersonare...............Readanswer

ListthedifferentPowerClassesinBluetooth.

ThefollowingtabledepictsdifferentPowerClassesinBluetooth:..............Readanswer

WhatareBluetoothprofiles?

Inordertodescribethewayofimplementingusermodelsaccomplishments,theprofilesaredeveloped.Anumberofuserscenariosaredescribed.................Readanswer

Explainthefollowingterms:BlueBugging,BlueSnarfing&Bluejacking?

BluebuggingattackingistargetedforprivacyissuesthatarespecifictocellphonesandBluetoothheadsets.Inordertosucceed..............Readanswer

ListthedifferencesbetweenBluetoothvsInfrared.

ThefollowingarethedifferencesbetweenBluetoothandInfrared.................Readanswer

WhatisCabirWorm?WhichdevicesdoestheCabirWormaffect?

ACabirwormisoneofthemalicioussoftware,usuallyreferredasmalware.ItutilizesBluetoothtechnologyforsendingitselftoanother..............Readanswer

ListthedifferencesbetweenBluetoothandWiFiIEEE802.11innetworking

Bluetoothtechnologyistoreplacecables,whileWiFiisutilizedforprovidingwireless,highspeedaccesstotheInternetoralocalarea.................Readanswer

ExplainaboutLMP(LinkManagementProtocol).

Multipledatalinksarecombinedfortheformationofasingletrafficengineeringlink,forthepurposeofscalability....................Readanswer

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