2. What is the most cost-effective method of solving interface congestion that is caused by a high level of traffic between two switches?

Transcription

1 CCNA 3 Chapter 3 v5.0 Exam Answers 2015 (100%) 1. Refer t the exhibit. Which switching technlgy wuld allw each access layer switch link t be aggregated t prvide mre bandwidth between each Layer 2 switch and the Layer 3 switch? HSRP PrtFast trunking EtherChannel 2. What is the mst cst-effective methd f slving interface cngestin that is caused by a high level f traffic between tw switches? increase uplink speed add mre VLANs t reduce bradcast dmains aggregate prts by using EtherChannel insert a ruter between the switches 3. Which tw lad balancing methds can be implemented with EtherChannel technlgy? (Chse tw.) destinatin MAC t destinatin IP destinatin IP t destinatin MAC surce MAC t destinatin MAC surce IP t destinatin IP destinatin MAC t surce MAC destinatin IP t surce IP 4. Which statement describes an EtherChannel implementatin? EtherChannel perates nly at Layer 2. PAgP cannt be used in cnjunctin with EtherChannel. A trunked prt can be part f an EtherChannel bundle. CCNA 5 Page 1

2 EtherChannel can supprt up t a maximum f ten separate links. 5. What is an advantage f using LACP? increases redundancy t Layer 3 devices decreases the chance f a spanning-tree lp allws autmatic frmatin f EtherChannel links prvides a simulated envirnment fr testing link aggregatin decreases the amunt f cnfiguratin that is needed n a switch fr EtherChannel 6. Which statement is true regarding the use f PAgP t create EtherChannels? It requires full duplex. It is Cisc prprietary. It requires mre physical links than LACP des. It increases the number f prts that are participating in spanning tree. It mandates that an even number f prts (2, 4, 6, etc.) be used fr aggregatin. 7. Which tw prtcls are link aggregatin prtcls? (Chse tw.) 802.3ad PAgP STP EtherChannel RSTP 8. Which PAgP mde cmbinatin will establish an EtherChannel? switch 1 set t n; switch 2 set t desirable. switch 1 set t desirable; switch 2 set t desirable. switch 1 set t aut; switch 2 set t aut. switch 1 set t aut; switch 2 set t n. 9. Refer t the exhibit. The administratr tried t create an EtherChannel between S1 and the ther tw switches via the cmmands that are shwn, but was unsuccessful. What is the prblem? CCNA 5 Page 2

3 Traffic can nly be sent t tw different switches if EtherChannel is implemented n Gigabit Ethernet interfaces. Traffic can nly be sent t tw different switches if EtherChannel is implemented n Layer 3 switches. Traffic cannt be sent t tw different switches thrugh the same EtherChannel link. Traffic cannt be sent t tw different switches, but nly t tw different devices like an EtherChannel-enabled server and a switch. 10. When a range f prts is being cnfigured fr EtherChannel, which mde will cnfigure LACP s that it initiates the EtherChannel negtiatin? active aut desirable passive 11. When a range f prts is being cnfigured fr EtherChannel by the use f PAgP, which mde will frm the bundled channel nly if the prt receives PAgP packets frm anther device? active aut desirable passive 12. As the netwrk administratr yu have been asked t implement EtherChannel n the crprate netwrk. What des this cnfiguratin cnsist f? prviding redundant links that dynamically blck r frward traffic gruping multiple physical prts t increase bandwidth between tw switches gruping tw devices t share a virtual IP address prviding redundant devices t allw traffic t flw in the event f device failure CCNA 5 Page 3

4 13. Refer t the exhibit. An EtherChannel was cnfigured between switches S1 and S2, but the interfaces d nt frm an EtherChannel. What is the prblem? The interface prt-channel number has t be different n each switch. The switch prts were nt cnfigured with speed and duplex mde. The switch prts have t be cnfigured as access prts with each prt having a VLAN assigned. The EtherChannel was nt cnfigured with the same allwed range f VLANs n each interface. 14. Which cmmand will initiate EtherChannel interface cnfiguratin mde? channel-grup grup-identifier interface prt-channel interface-identifier interface interface-identifier interface range interface-identifier 15. What is a best practice t use befre beginning an EtherChannel implementatin? Assign affected interfaces t VLAN 1. Assign affected interfaces t the management VLAN. Shut dwn each f the affected interfaces. Enable each f the affected interfaces. Assign affected interfaces t an unused VLAN. 16. Which three ptins must match in rder t establish an EtherChannel between tw directly cnnected switches? (Chse three.) prt numbers that are used fr the EtherChannel VLAN memberships f the interfaces that are used fr EtherChannel CCNA 5 Page 4

5 dmain names n the switches speed f the interfaces that are used fr EtherChannel duplex settings f the interfaces that are used fr EtherChannel prt security settings n the interfaces that used fr EtherChannel 17. An EtherChannel link using LACP was frmed between tw switches, S1 and S2. While verifying the cnfiguratin, which mde cmbinatin culd be utilized n bth switches? S1-n and S2-passive S1-passive and S2-passive S1-n and S2-active S1-passive and S2-active 18. Refer t the exhibit. A netwrk administratr has decided that an EtherChannel between prts 0/1 and 0/2 n switches S1 and S2 wuld help perfrmance. After making the cnfiguratin, the administratr ntices n perfrmance gain. Based n the utput that is shwn, what tw pssible assumptins culd a netwrk administratr make? (Chse tw.) The EtherChannel bundle is wrking. The EtherChannel bundle is nt wrking. One f the prts n S2 was nt cnfigured crrectly. Switch S2 did nt use a cmpatible EtherChannel mde. LACP and PAgP were bth used t frm the EtherChannel. CCNA 5 Page 5

6 Switch S2 must be cnfigured s that the maximum number f prt channels is increased. 19. Match the descriptin t the crrect cmmand. (Nt all ptins are used.) 20. Open the PT Activity. Perfrm the tasks in the activity instructins and then answer the questin. What are tw reasns why the ping messages that are issued frm Laptp0 twards Laptp1 are failing? (Chse tw.) The channel grup mde is nt set crrectly n the switches. The wrng cable types are cnnecting the tw switches. The interface VLAN 1 is shut dwn n bth switches. The channel grup shuld be cnfigured as a trunk n each switch. The tw interfaces n each f the switches belng t different VLANs. CCNA 5 Page 6