ActualTests.Cisco.640-802.Exam.Q.and.A.08.15.08-DDU (1130589), страница 83
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Hosts Certkiller 4 and Certkiller 5 will respond that the destination is not on the localLAN.E. Router Certkiller 2 will forward the ARP request to router Certkiller A.F. Switch Certkiller B will block the request since the server is not on the LAN.Answer: EQUESTION 740:Note: Please refer to the Certkiller Communications scenario.The Certkiller 6 PC has sent the ARP request, and has now received the ARP reply.Certkiller 6 now build a packet that will be sent to Certkiller C web server in order toestablish the communication.Actualtests.com - The Power of Knowing640-802What information will be placed in the header of this packet? Select two.A.
The source address will be the IP address of the Fa0/0 interface of Router Certkiller 2.B. The source address will be the IP address of the Fa0/0 interface of Switch Certkiller B.C. The source address will be the IP address of PC Certkiller 6.D. The destination address will be the IP address of interface Fa0/0 of Router Certkiller 2.E. The destination address will be the IP address of interface Fa0/0 of Router Certkiller A.F.
The destination address will be the IP address of interface S0/0 of Router Certkiller 2.G. The destination address will be the IP address of interface S0/0 of Router Certkiller A.H. The destination address will be the IP address of the Certkiller 3 web server.Answer: C, HExplanation:In this example, since we are dealing with layer 3 (IP) and not the MAC address thesource and destination IP address will remain the same.QUESTION 741:Note: Please refer to the Certkiller Communications scenario.The Certkiller 6 PC has sent the ARP request, received an ARP Reply, and sent apacket to the Certkiller C web server.
The Ethernet frame has now been received byRouter Certkiller A and will now be delivered to the local LAN. Consider theaddressing of the Ethernet frame that now has been created by Router Certkiller A.Which two statements apply in this context? Select two.A. The source address will be the MAC address of PC Certkiller 6.B. The source address will be the MAC address of interface S0/0 of router Certkiller AC. The source address will be the MAC address of interface S0/0 of router Certkiller 2.D. The source address will be the MAC address of interface Fa0/0 of router Certkiller AE. The source address will be the MAC address of interface Fa0/0 of router Certkiller 2.F. The destination address will be the MAC address of Switch Certkiller A port attachedto the Certkiller C web server.G.
The destination address will be the IP address of Switch Certkiller A port attached tothe Certkiller C web server.H. The destination address will be the MAC address of Switch Certkiller A port attachedto the Certkiller A Fa0/0 interface..I. The destination address will be the MAC address of the Certkiller C web server.Answer: D, IQUESTION 742:Note: Please refer to the Certkiller Communications scenario.Certkiller has opened two Internet Explorer windows on her local PC Certkiller 6.Actualtests.com - The Power of Knowing640-802She uses them to simultaneously access the local web server Certkiller C at the timeto browse WWW documents on the intranet.What mechanism makes the data to end up in the correct Internet Explorerwindow?A.
The OSI application layer tracks the conversations and directs them to the correctbrowser.B. The IP Source addresses of the packets will be used to direct the data to the correctbrowser window.C. The browser track the data by the URL.D. The TCP port numbers are used to direct the data to the correct application window.Answer: DTopic 5, Certkiller India, ScenarioNetwork topology exhibit:Exhibit #2:Actualtests.com - The Power of Knowing640-802You work as a network administrator for Certkiller .com in Mumbai.
Certkiller have localoffices throughout India. Certkiller also have internal sites. These are connected through amultinational core network.You use terminal Certkiller A to access Certkiller 0. You issue the command: shframe-relay mapTopic 5, Certkiller India, Scenario (4 questions)QUESTION 743:If required, what password should be configured on the router in the Certkiller 2branch office to allow a connection to be established with the Certkiller 1 router?Actualtests.com - The Power of Knowing640-802A. C0nsoleB.
No password is requiredC. T1netD. En8bleE. Scr8Answer: BExplanation:No password is required because there is no authentication type is specified, it's justencapsulation type is changed. By default encapsulation type on serial interface is hdlcon Cisco router, that is Cisco proprietary code added hdlc . If you are going withdifferent vendor router connection with cisco router on serial interface, you need tochange hdlc encapsulation type to ppp.QUESTION 744:What destination Layer 2 address will be used in the frame header containing apacket for host 172.30.4.4?A.
344B. 704C. 702D. 196Answer: CExplanation:Circuits are identified by data-link connection identifiers (DLCI). DLCIs are assigned byyour provider and are used between your router and the Frame Relay provider. In otherwords, DLCIs are locally significant.See the exhibit of show frame-relay map output, IP address 172.30.4.4 is mapped with702 DLCI address, so layer 2 destination address (DLCI on frame-relay) will be 702.You can map IP to DLCI with:* frame-relay interface-dlci <dlci_num>or* frame-relay map ip <IP Address> <dlci>QUESTION 745:A static map to the Certkiller 12 location is required.
Which command should beused to create this map?A. frame-relay map ip 172.30.0.3 344 broadcastActualtests.com - The Power of Knowing640-802B. frame-relay map ip 172.30.0.3 704 broadcastC. frame-relay map ip 172.30.0.3 702 broadcastD. frame-relay map ip 172.30.0.3 196 broadcastAnswer: DExplanation:Configuring a static Frame Relay map, is optional unless you are using subinterfaces.The Frame Relay map will map a Layer 3 address to a local DLCI. This step is optionalbecause inverse-arp will automatically perform this map for you.Syntax for frame-relay map is:frame-relay map protocol address dlci [broadcast] [cisco | ietf]The broadcast option allows packets, such as RIP updates to be forwarded across thePVC.
If you are not using the broadcast option, you need to specify the neighbor toforward unicast packet using neighbor command.neighbor a.b.c.dSpecify RIP neighbor. When a neighbor doesn't understand multicast, this command isused to specify neighbors. In some cases, not all routers will be able to understandmulticasting, where packets are sent to a network or a group of addresses. In a situationwhere a neighbor cannot process multicast packets, it is necessary to establish a directlink between routers.
The neighbor command allows the network administrator to specifya router as a RIP neighbor. The no neighbor a.b.c.d command will disable the RIPneighbor.QUESTION 746:Which connection uses the default encapsulation for serial interfaces on Ciscorouters?A. The serial connection to the Multinational CoreB. The serial connection to the Certkiller 1 branch officeC. The serial connection to the Certkiller 2 branch officeD. The serial connection to the Certkiller 3 branch officeAnswer: BExplanation:The default encapsulation on a serial interface is HDLC.
The original HDLCencapsulation was defined by the International Organization for Standards (ISO), thosesame folks who developed the OSI model. The ISO version of HDLC had oneshortcoming, however; it had no options to support multiple Layer 3 routed protocols. Asa result, most vendors have created their own form of HDLC. Cisco is no exceptionbecause it has its own proprietary form of HDLC to support various Layer 3 protocolssuch as IPX, IP, and AppleTalk.The Serial connection to the Certkiller 1 branch office using the default encapsulationActualtests.com - The Power of Knowing640-802type. You can change using:* encapsulation command on interfaceQUESTION 747:Certkiller is using a link-state routing protocol within their network.
What are twodrawbacks of implementing a link-state routing protocols? (Select two)A. The large size of the topology table listing all advertised routes in the convergednetworkB. The sequencing and acknowledgement of link-state packetsC. The high demand on router resources to run the link-state routing algorithmnD.
The requirement for hierarchical IP addressing scheme for optimal functionalityE. The high volume of link-state advertisments in a converged networkAnswer: C, DExplanation:The main drawbacks to Link State protocols are the amount of CPU overhead involved incalculating route changes and memory resources that are required to store neighbortables, route tables, and a complete topology map.In addition to being resource intensive, link state routing protocols are hierachical bydesign using the concepts of areas in OSPF or levels in IS-IS, so a hierarchical IPaddressing sceme is need for optimal routing functionality.QUESTION 748:Exhibit:Actualtests.com - The Power of Knowing640-802Router Certkiller 2 is part of an OSPF network.
You issues the "show ip protocols"command on this router as shown in the exhibit. Based on the information shown,why was Certkiller 2 not elected as the designated router?A. Certkiller 2 is not advertising the interface with address 221.130.149.10.B. The OSPF process ID of Certkiller 2 is lower than the process ID of the elected DR.C. The interface address of Certkiller 2 is a higher value than the interface address of theDR.D. Certkiller has a lower OSPF priority value than the router elected as DR.E.
None of the aboveAnswer: AExplanation:On broadcast and non-broadcast multi-access networks, a designated router and backupdesignated router are elected. The election is done by first choosing the routers with thehighest priority value or, if the priorities are same, choosing the routers with the highestrouter ID. The router ID is chosen by the highest IP address on any loopback interface or,if no loopback interfaces are configured, the highest IP address on any active physicalinterface.Referring to the exhibit of the "show ip protocols" command: Router ID is:221.130.149.10 but this network is not advertised using network command on OSPF. Sointerface having 221.130.149.10 IP address is not participating on OSPF routing.Therefore, Certkiller 2 is not elected as the designated router.QUESTION 749:Actualtests.com - The Power of Knowing640-802Exhibit #1:Exhibit #2:You work as a network administrator at Certkiller .com.
You study the exhibitscarefully. The Certkiller corporate office and branch office have been attachedthrough two non-Cisco routers over a highly reliable WAN connection over a year.A new Cisco router has been installed to replace the hardware at the branchlocation. Since the installation, IP communication cannot be verified across the link.Given the output on router Certkiller 1, what could be a logical first step to take toresolve this problem?A. Ensure an exact match between the bandwidth setting on Certkiller 1 and Certkiller 2B. Change the encapsulation on Certkiller 1 to PPP.C.
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