Chapter 5 Quiz – VLAN Trunks and Ether Channel Bundles (Answers) CCNPv 8 Encor PDF

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49. What protocol or technology manages trunk negotiations between switches?  DTP  STP  Et her Channel  VTP 50. Refer to the exhibit. An administrator tried to implement an EtherChannel between two switches by grouping the six physical ports as shown. However, the administrator was not successful. What is the reason for that?

 AnEt her Channel l i nkcanonl ybecr eat edbet weenLay er3s wi t c hes .  An EtherChannel link can only be formed by grouping interfaces of the same type.  AnEt her Channell i nkcanonl ybei mpl ement edonGi gabi tEt her neti nt er f ac es .  AnEt her Channell i nkcanonl ybei mpl ement edonFas tEt her neti nt er f aces . Explanation: Fas tEt her netandGi gabi tEt her neti nt er f ac esc annotbec ombi nedi nt oas i ngl e Et her Channeli nt er f ac e.Thei nt er f acesmustal l beoft hes amet ype.Et her Channel l i nk scanbe c onfi gur edonLay er2andLa y er3s wi t ches . 51. What is the effect of entering the switchport mode trunk and switchport nonegotiate interface configuration commands on a Cisco Catalyst 2960 switch that is connected to a switch that does not support DTP? I twi l l causet hepor tt ogener at eDTPf r ames . I twi l l causet hepor tt obec omeanac ces spor t .  It will cause the interface to become a trunk but not generate DTP frames. I twi l l sett hepor tasdy nami cdesi r abl e. Explanation: WhenanonCi s codev i c et hatdoesnots uppor tDTPi sconnec t edt oaCi sc odev i c et hat s uppor t sDTP,t hec ommandsswitchport mode trunk andswitchport nonegotiate ha v et obe ent er edont her espect i v ei nt er f ac esi nor dert ocr eat et het r unkbet weent het woconnect eddev i ces . Sc al i ngnet wor k s :3. 2. 3 52. Which feature could be used in a network design to increase the bandwidth by combining multiple physical links into a single logical link?  VLANs t r unks por t s s ubi nt er f aces  EtherChannel Explanation: VLANscr eat es ev er algr oupsofus er swhi chuseas i ngl ephy s i cal l i nk .T r unkpor t sar e s i ngl ephy s i cal l i nk s .Subi nt er f acesal l owonephy si c all i nkt obeusedt oc r eat es ev er al l ogi call i nks . Et her Channelpr ov i dest heabi l i t yt oc ombi nemul t i pl ephy s i cal l i nk si nt oas i ngl el ogi c all i nk. 53. A network administrator is planning to add a new switch to the network. What should the network administrator do to ensure the new switch exchanges VTP information with the other switches in the VTP domain?  Configure the correct VTP domain name and password on the new switch.  Ass oci at eal lpor t soft henews wi t cht oaVLANt hati snotVLAN1.  Confi gur et heVLANsont henews wi t ch.  Confi gur eal l por t sont henews wi t cht oac ces smode.

Explanation: I nor dert oex c hangeVTPi nf or mat i on,t henews wi t c hmustbec onfi gur edwi t ht hes ame VTPdomai nnameandpas s wor dast heot hers wi t c hesi nt henet wor k . 54. Which statement describes a characteristic of EtherChannel? I tc ancombi neupt oamax i mum of4phy si cal l i nk s . I tc anbundl emi x edt y pesof100Mb/ sand1Gb/ sEt her netl i nks . I tc ons i s t sofmul t i pl epar al l ell i nk sbet weenas wi t c handar out er .  It is made by combining multiple physical links that are seen as one link between two switches. Explanation: AnEt her Channel i sf or medbyc ombi ni ngmul t i pl e( s amet y pe)Et her netphy s i c al l i nk ss o t heyar es eenandc onfi gur edasonel ogi c all i nk .I tpr ovi desanaggr egat edl i nkbet weent wos wi t c hes . Cur r ent l yeac hEt her Channel canconsi s tofupt oei ghtc ompat i bl yc onfi gur edEt her netpor t s . 55. Refer to the exhibit. Which switching technology would allow data to be transmitted over each access layer switch link and prevent the port from being blocked by spanning-tree because of the redundant link?

 EtherChannel  HSRP  Por t Fast t r unki ng Explanation: Por t Fas ti sus edt or educet heamountoft i met hatapor ts pendsgoi ngt hr ought he s panni ngt r eeal gor i t hm,s ot hatdev i cescans t ar ts endi ngdat as ooner .Tr unki ngcanbei mpl ement edi n c onj unc t i onwi t hEt her Channel ,butt r unk i ngal onedoesnotaggr egat es wi t c hl i nk s .HSRPi sus edt ol oadbal ancet r afficac r os st wodi ffer entc onnec t i onst oLay er3dev i cesf ordef aul tgat ewayr edundanc y .HSRP doesnotaggr egat el i nk satei t herLay er2orLa y er3asEt her Channeldoes . 56. Which technology is an open protocol standard that allows switches to automatically bundle physical ports into a single logical link?  Mul t i l i nkPPP  DTP  LACP  PAgP Explanation: LACP,orLi nkAggr egat i onCont r ol Pr ot ocol ,i sdefi nedbyI EEE802. 3adandi sanopen s t andar dpr ot ocol .LACPal l owss wi t c hest oaut omat i cal l ybundl es wi t chpor t si nt oasi ngl el ogi call i nkt o i nc r eas ebandwi dt h.PAgP,orPor tAggr egat i onPr ot ocol ,per f or msas i mi l arf unct i on,buti ti saCi s co pr opr i et ar ypr ot oc ol .DTPi sDy nami cTr unki ngPr ot ocolandi susedt oaut omat i c al l yanddy nami cal l ybui l d t r unk sbet weens wi t c hes .Mul t i l i nkPPPi sus edt ol oadbal ancePPPt r afficacr os smul t i pl es er i al i nt er f ac es .

57. When EtherChannel is configured, which mode will force an interface into a port channel without exchanging aggregation protocol packets?  act i v e  aut o  on  des i r abl e Explanation: Forbot hLACPandPAgP,t he“ on”modewi l lf or ceani nt er f ac ei nt oanEt her Channel wi t houtex c hangi ngpr ot ocolpac k et s . 58. Which three parameters must match, on the ports of two switches, for a PAgP Etherchannel to be created? (Choose three.)  speed  duplex  PAgPmode  Por tI D  MACaddr ess  VLAN information Explanation: PAgPwi l l aut omat i cal l ycr eat eEt her Channel l i nk sbet weent wos wi t c hesbutt he c onnec t i ngpor t smus thav et hes ames peed,dupl ex ,andVLANi nf or mat i on.ThePAgPmodemustbe c ompat i bl ebutnotnec es s ar i l yequal .Thepor tI Dandt heMACaddr es sesdonothav et omat c h. 59. In which link aggregation mode does an interface initiate EtherChannel negotiation by sending LACP packets?  des i r abl e  active  on  aut o Explanation: LACPhast hr eeconfigur abl emodes :on,act i v e,andpas si v e.Onl yt heac t i v emode pl acesapor ti nt oanac t i v enegot i at i ngst at e.Aut oanddesi r abl ear ePAgPmodesandnotLACPmodes . 60. Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?

 HSRP  Por t Fast t r unki ng  EtherChannel Explanation: Por t Fas ti sus edt or educet heamountoft i met hatapor ts pendsgoi ngt hr ought he s panni ngt r eeal gor i t hm,s ot hatdev i cescans t ar ts endi ngdat asooner .Tr unki ngc anbei mpl ement edi n

c onj unc t i onwi t hEt her Channel ,butt r unk i ngal onedoesnotaggr egat es wi t c hl i nk s .HSRPi sus edt ol oadbal ancet r afficac r os st wodi ffer entc onnec t i onst oLay er3dev i cesf ordef aul tgat ewayr edundanc y .HSRP doesnotaggr egat el i nk satei t herLay er2orLa y er3asEt her Channeldoes . 61. As the network administrator you have been asked to implement EtherChannel on the corporate network. What does this configuration consist of?  pr ov i di ngr edundantl i nkst hatdy nami cal l ybl ockorf or war dt r affic  grouping multiple physical ports to increase bandwidth between two switches  gr oupi ngt wodev i cest os har eavi r t ual I Paddr es s  pr ov i di ngr edundantdev i c est oal l owt r affict oflowi nt heev entofdev i cef ai l ur e Explanation: Et her Channel i sut i l i z edonanet wor kt oi nc r eas es peedc apabi l i t i esbygr oupi ngmul t i pl e phy si c al por t si nt ooneormor el ogi c alEt her Channel l i nk sbet weent wos wi t ches .STPi sus edt opr ov i de r edundantl i nkst hatdy nami c al l ybl oc korf or war dt r afficbet weens wi t c hes .FHRPsar eusedt ogr oup phy si c al dev i cest opr ov i det r afficflowi nt heev entoff ai l ur e. 62. A network administrator is configuring an EtherChannel trunk link to add additional allowed VLANs to pass the link. Which statement describes the process of this change?  The change should be made on the port channel interface at both sides.  Thec hangeshoul dbemadeoneac hphy s i cal i nt er f ac eoft heEt her Channel .  Thec hangeonl yneedst obemadeonones i deoft heEt her Channel l i nk ,becausei twi l l aut omat i cal l ypr opagat et ot heot hers i de.  Thec hangecanbemadeont hepor tc hannel i nt er f ac eatonesi deandt hechangewi l lbe negot i at edt ot heot hers i de. Explanation: I fac onfi gur at i onchangeneedst obemadeaf t eranEt her Channeli ses t abl i s hed,t he c hanges houl dbemadei npor tchanneli nt er f acec onfi gur at i onmode.Af t ert hepor tc hannel i nt er f ac ei s c onfi gur ed,anyconfi gur at i ont hati sappl i edt ot hepor tc hanneli nt er f ac eal soaffec t si ndi vi duali nt er f aces . Howev er ,confi gur at i onst hatar eappl i edt ot hei ndi v i duali nt er f ac esdonotaffec tt hepor tc hannel i nt er f ac e.Al s o,anEt her Channelt r unkl i nki ses t abl i s hedi ft hepar amet er( i nt hi sc as e,al l owedr angeof VLANs)mat ches . 63. Which two events will cause the VTP revision number on a VTP server to change? (Choose two.)  adding VLANs r eboot i ngt hes wi t c h  changing the VTP domain name c hangi ngt hes wi t cht oaVTPc l i ent c hangi ngi nt er f ac eVLANdesi gnat i ons Explanation: Changi ngt heVTPdomai nnameal way sr es et st heVTPr ev i s i onnumbert o0.Thi si san i mpor t ants t epi naddi ngs wi t chest oanex i s t i ngVTPdomai nnomat t erwhatVTPmodet hes wi t c hus es ....