ActualTests.Cisco.640-802.Exam.Q.and.A.08.15.08-DDU (1130589), страница 29
Текст из файла (страница 29)
The switch has been configured withthree VLANs: VLAN1, VLAN2, and VLAN3. In addition, the IP address of theswitch is 192.168.1.2. A host is being added to the switch on VLAN 2.What is the correct default gateway for this computer?A. 192.168.1.1B. 192.168.1.2C. 192.168.2.1D. 192.168.2.2E. 192.168.3.1F. 192.168.3.2G. None of the aboveAnswer: CExplanation:The default gateway for this host should be the IP address of the local router on thatVLAN.
Based on the router configuration, this IP address is 192.168.2.1. In the routerconfiguration, the number that follows the "encapsulation dot1q" command is the VLANthat is assigned to it. In this case, the PC host belongs to VLAN 2, so the subinterface fastEthernet 0/0.2 is the one that should be chosen.Incorrect Answers:A. This is the IP address that hosts in VLAN 1 should use as their default gateway.B. Even though this is the IP address of the switch itself as stated in the question, itshould not be chosen as the default gateway for any of the hosts in any of the VLANs.This IP address would be used only to administer and make changes to the switch.D, F. These are incorrect choices.E.
This is the IP address that hosts in VLAN 3 should use as their default gateway.QUESTION 234:A portion of the Certkiller network is displayed below:Actualtests.com - The Power of Knowing640-802Host A in the graphic is connected to a switch port assigned to VLAN 1.Which two settings on host A are required to allow connectivity with Host B onVLAN 2? (Choose two)A.
IP address: 192.1.1.66 255.255.255.240B. IP address: 192.1.1.130 255.255.255.192C. IP address: 192.1.1.142 255.255.255.240D. Default gateway: 192.1.1.129E. Default gateway: 192.1.1.65F. Default gateway: 192.1.1.1Answer: C, DExplanation:Sub-interface Fast Ethernet 0/0.2 was created for VLAN 1 through the use of the"encapsulation dot1q 1" command. Therefore, since host A resides in VLAN 1 it must beconfigured with an IP address in the 192.1.1.128/28 subnet and it must be configuredwith the IP address of the default gateway, which is the IP address assigned to thecorresponding sub-interface of the router.Incorrect Answers:A.
This IP address is not in the same subnet as the Fast Ethernet 0/0.2 sub-interface.B. The subnet mask is incorrect in this choice.E, F. The default gateway needs to be set as the IP address for the sub-interface created inthe router for VLAN 1.QUESTION 235:Part of the Certkiller WAN is shown below:Actualtests.com - The Power of Knowing640-802Certkiller 2 configuration exhibit:In this network segment, the Certkiller network administrator has created a newVLAN on Certkiller 1 and added host Certkiller C and host Certkiller D. Thisadministrator has properly configured switch interfaces FastEthernet0/13 throughFastEthernet0/24 to be members of the new VLAN. However, after the networkadministrator completed the configuration, host Certkiller A could communicatewith host Certkiller B, but host Certkiller A could not communicate with hostCertkiller C or host Certkiller D. Which commands are required to resolve thisproblem?A.
Certkiller 2(config)# router ripCertkiller 2(config-router)# network 192.168.1.0Certkiller 2(config-router)# network 192.168.2.0Certkiller 2(config-router)# network 192.168.3.0B. Certkiller 2(config)# interface fastethernet 0/1.3Certkiller 2(config-if)# encapsulation dot1q 3Certkiller 2(config-if)# ip address 192.168.3.1 255.255.255.0C. Certkiller 1(config)# interface fastethernet 0/1Certkiller 1(config-if)# switchport mode trunkCertkiller 1(config-if)# switchport trunk encapsulation islD. Certkiller 1# vlan databaseCertkiller 1(vlan)# vtp v2-modeCertkiller 1(vlan)# vtp domain CertkillerCertkiller 1(vlan)# vtp serverE.
None of the aboveAnswer: BActualtests.com - The Power of Knowing640-802Explanation:Here is the example of configuring the router for inter-vlan communicationRouterA(config)#int f0/0.1RouterA(config-subif)#encapsulation ?dot1Q IEEE 802.1Q Virtual LANRouterA(config-subif)#encapsulation dot1Q or isl VLAN IDRouterA(config-subif)# ip address x.x.x.x y.y.y.yQUESTION 236:Part of the Certkiller network is shown below:Based on the information provided above, which two statements are true aboutinterVLAN routing in this Certkiller network segment? (Choose two)A.
Router Certkiller 3 and Switch Certkiller 2 should be connected via a crossover cable.B. Host Certkiller E and host Certkiller F use the same IP gateway address.C. The FastEthernet 0/0 interface on Router Certkiller 3 and Switch Certkiller 2 trunk portsmust be configured using the same encapsulation type.D. Router Certkiller 3 will not play a role in communications between host Certkiller Aand host Certkiller D.E. Router Certkiller 3 needs more LAN interfaces to accommodate the VLANs that areshown in the exhibit.F. The FastEthernet 0/0 interface on Router Certkiller 3 must be configured usingsubinterfaces.Answer: C, FExplanation:By default, only hosts that are members of the same VLAN can communicate.
To changethis and allow inter-VLAN communication, you need a router or a layer 3 switch.Actualtests.com - The Power of Knowing640-802Here is the example of configuring the router for inter-vlan communicationRouterA(config)#int f0/0.1RouterA(config-subif)#encapsulation ?dot1Q IEEE 802.1Q Virtual LANRouterA(config-subif)#encapsulation dot1Q or isl VLAN IDRouterA(config-subif)# ip address x.x.x.x y.y.y.yQUESTION 237:The Certkiller network administrator has issued the "VTP password Certkiller "command on a Cisco device. What is the purpose of this command?A. It allows two VTP servers to exists in the same domain, each configured with differentpasswordsB.
It is the password required when promoting a switch from VTP client mode to VTPserver modeC. It is used to access the VTP server to make changes to the VTP configurationD. It is used to validate the sources of VTP advertisements sent between switchesE. None of the aboveAnswer: DExplanation:When you create the VTP domain, you have a bunch of options, including setting thedomain name, password, operating mode, and pruning capabilities of the switch. Use thevtp global configuration mode command to set all this information.The purpose of setting password on VTP is to validate the sources of VTP advertisementssent between switches belonging to same VTP domain.QUESTION 238:The VTP status of two Certkiller devices is displayed below:You work as a network technician at Certkiller and you have configured twoswitches, named Certkiller 1 and Certkiller 2 to use VTP. However, the switches arenot sharing VTP messages.
Given the command output shown in the graphic above,Actualtests.com - The Power of Knowing640-802why are these switches not sharing VTP messages?A. The VTP domain name is not correctly configuredB. VTP traps generation is disabledC. VTP V2 mode is disabledD. VTP pruning mode is disabledE.
The VTP operating mode is not correctly configuredF. The VTP version is not correctly configuredG. VTP has not been enabled on one of the Certkiller devicesH. None of the aboveAnswer: AExplanation:When you create the VTP domain, you have a bunch of options, including setting thedomain name, password, operating mode, and pruning capabilities of the switch. Use thevtp global configuration mode command to set all this information.To share the VTP messages switches should have same domain name and password.Mode can be either Server, Transparent, Client.In the Exhibit one switch has London and another has Madrid domain name, so toexchange VTP message both should have same domain name.QUESTION 239:The VTP status of switch Certkiller 1 is shown below:Given the output of the Certkiller 1 switch shown above, which statement bestdescribes the operation of this switch?A.
VTP is disabled on this switchB. The switch can create, change and delete VLANsActualtests.com - The Power of Knowing640-802C. The switch learns VLAN information but does not have save it to NVRAMD. The switch can create VLANs locally but will not forward this information to otherswitchesE. The switch learns VLAN information and updates the local VLAN database inNVRAMF. None of the aboveAnswer: CExplanation:This switch is operated on client VTP mode.In client mode, switches receive information from VTP servers, but they also send andreceive updates, so in this way, they behave like VTP servers. The difference is that theycan't create, change, or delete VLANs. Plus, none of the ports on a client switch can beadded to a new VLAN before the VTP server notifies the client switch of the new VLAN.Also good to know is that VLAN information sent from a VTP server isn't stored inNVRAM, which is important because it means that if the switch is reset or reloaded, theVLAN information will be deleted.
Here's a hint: If you want a switch to become aserver, first make it a client so it receives all the correct VLAN information, then changeit to a server.QUESTION 240:Which VTP mode should a Cisco switch be set to if this switch is to add or deleteVLANs to a management domain?A. TransparentB. ServerC. AutoD. ClientE. UserAnswer: BExplanation:VTP Modes:If you intend to make a switch part of a VTP management domain, each switch must beconfigured in one of three possible VTP modes. The VTP mode assigned to a switch willdetermine how the switch interacts with other VTP switches in the management domain.The three VTP modes that can be assigned to a Cisco switch include server mode, clientmode, and transparent mode. Each of these roles is outlined below:Server Mode Once VTP is configured on a Cisco switch, the default mode used is ServerMode. In any given VTP management domain, at least one switch must be in ServerMode.
When in Server Mode, a switch can be used to add, delete, and modify VLANs,and this information will be passed to all other switches in the VTP management domain.Actualtests.com - The Power of Knowing640-802Client Mode When a switch is configured to use VTP Client Mode, it is simply therecipient of any VLANs added, deleted, or modified by a switch in Server Mode withinthe same management domain. A switch in VTP client mode cannot make any changes toVLAN information.Transparent Mode A switch in VTP Transparent Mode will pass VTP updates receivedby switches in Server Mode to other switches in the VTP management domain, but willnot actually process the contents of these messages. When individual VLANs are added,deleted, or modified on a switch running in transparent mode, the changes are local tothat particular switch only, and are not passed to other switches in the VTP managementdomain.Based on the roles of each VTP mode, the use of each should be more or less obvious.For example, if you had 15 Cisco switches on your network, you could configure each ofthem to be in the same VTP management domain.
Although each could theoretically beleft in the default Server Mode, it would probably be easier to leave only one switch inthis configuration, and then configure all remaining switches for VTP Client Mode.Then, when you need to add, delete, or modify a VLAN, that change can be carried outon the VTP Server Mode switch and passed to all Client Mode switches automatically. Incases where you need a switch to act in a relatively standalone manner, or do not want itto propagate information about its configured VLANs, use Transparent Mode.Incorrect Answers:A. A switch in VTP Transparent Mode will pass VTP updates received by switches inServer Mode to other switches in the VTP management domain, but will not actuallyprocess the contents of these messages.C, E.
![](https://s.studizba.com/z.php?f=/templates/si/i/noavatar.png&w=100&h=100&t=1"){kind=avatar}
