1、QUESTION 401Which of the following describes the roles of devices in a WAN? (Choose three.)A. A CSU/DSU terminates a digital local loopB. A modem terminates a digital local loopC. A CSU/DSU terminates an analog local loopD. A modem terminates an analog local loopE. A router is commonly considered a
2、DTE deviceF. A router is commonly considered a DCE deviceQUESTION 402How should a router that is being used in a Frame Relay network be configured to avoid split horizon issuesfrom preventing routing updates?A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to
3、 the sub-interfaceB. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast trafficC. Configure many sub-interfaces on the same subnetD. Configure a single sub-interface to establish multiple PVC connections to multiple remote routerInterfacesQUESTION 403The F
4、rame Relay network in the diagram is not functioning properly. What is the cause of the problem?A. The Gallant router has the wrong LMI type configuredB. Inverse ARP is providing the wrong PVC information to the Gallant routerC. The S3 interface of the Steele router has been configured with the fram
5、e-relay encapsulation ietfcommandD. The frame-relay map statement in the Attalla router for the PVC to Steele is not correctE. The IP address on the serial interface of the Attalla router is configured incorrectlyQUESTION 404As a CCNA candidate, you must have a firm understanding of the IPv6 address
6、 structure. Refer to IPv6address, could you tell me how many bits are included in each filed?A. 24B. 4C. 3D. 16QUESTION 405Refer to the exhibit. How many broadcast domains exist in the exhibited topology?A. oneB. twoC. threeD. fourE. fiveF. sixQUESTION 406Refer to the exhibit.The network administrat
7、or has created a new VLAN on Switch1 and added host C and host D. Theadministrator has properly configured switch interfaces FastEthernet0/13 through FastEthernet0/24 to bemembers of the new VLAN. However, after the network administrator completed the configuration, host Acould communicate with host
8、 B, but host A could not communicate with host C or host D. Whichcommands are required to resolve this problem?A. Router(config)# interface fastethernet 0/1.3Router(config-if)# encapsulation dot1q 3Router(config-if)# ip address 192.168.3.1 255.255.255.0B. Router(config)# router ripRouter(config-rout
9、er)# network 192.168.1.0Router(config-router)# network 192.168.2.0Router(config-router)# network 192.168.3.0C. Switch1# vlan databaseSwitch1(vlan)# vtp v2-modeSwitch1(vlan)# vtp domain ciscoSwitch1(vlan)# vtp serverD. Switch1(config)# interface fastethernet 0/1Switch1(config-if)# switchport mode tru
10、nkSwitch1(config-if)# switchport trunk encapsulation islQUESTION 407On a network of one department, there are four PCs connected to a switch, as shown in the followingfigure:After the Switch1 restarts. Host A ( the host on the left ) sends the first frame to Host C (the host on theright). What the f
11、irst thing should the switch do?A. Switch1 will add 192.168.23.12 to the switching table.B. Switch1 will add 192.168.23.4 to the switching table.C. Switch1 will add 000A.8A47.E612 to the switching table.D. None of the aboveQUESTION 408Refer to the exhibit. The network administrator is in a campus bu
12、ilding distant from Building B. WANRouteris hosting a newly installed WAN link on interface S0/0. The new link is not functioning and theadministrator needs to determine if the correct cable has been attached to the S0/0 interface. How can theadministrator accurately verify the correct cable type on
13、 S0/0 in the most efficient manner?nA. Telnet to WANRouter and execute the command show interfaces S0/0B. Telnet to WANRouter and execute the command show processes S0/0C. Telnet to WANRouter and execute the command show running-configurationD. Telnet to WANRouter and execute the command show contro
14、ller S0/0E. Physically examine the cable between WANRouter S0/0 and the DCE.F. Establish a console session on WANRouter and execute the command show interfaces S0/0QUESTION 409While troubleshooting a connectivity issue from a PC you obtain the following information:Local PC IP address: 10.0.0.35/24D
15、efault Gateway: 10.0.0.1Remote Sever: 10.5.75.250/24You then conduct the following tests from the local PC:Ping 127.0.0.1 SuccessfulPing 10.0.0.35 SuccessfulPing 10.0.0.1 UnsuccessfulPing 10.5.75.250 UnsuccessfulWhat is the underlying cause of this problem?A. A remote physical layer problem exists.B
16、. The host NIC is not functioning.C. TCP/IP has not been correctly installed on the host.D. A local physical layer problem exists.QUESTION 410A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routerscannot establish an adjacency relationship on their common
17、Ethernet link. The graphic shows the output ofthe show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic,what is the cause of this problem?A. The OSPF area is not configured properly.B. The priority on R1 should be set higher.C. The cost on R1 should be set
18、higher.D. The hello and dead timers are not configured properly.E. A backup designated router needs to be added to the network.F. The OSPF process ID numbers must match.QUESTION 411This graphic shows the results of an attempt to open a Telnet connection to router ACCESS1 from routerRemote27. Which o
19、f the following command sequences will correct this problem?A. ACCESS1(config)# line console 0ACCESS1(config-line)# password ciscoB. Remote27(config)# line console 0Remote27(config-line)# loginRemote27(config-line)# password ciscoC. ACCESS1(config)# line vty 0 4ACCESS1(config-line)# loginACCESS1(con
20、fig-line)# password ciscoD. Remote27(config)# line vty 0 4Remote27(config-line)# loginRemote27(config-line)# password ciscoE. ACCESS1(config)# enable password ciscoF. Remote27(config)# enable password ciscoQUESTION 412When upgrading the IOS image, the network administrator receives the exhibited err
21、or message. Whatcould be the cause of this error?A. The new IOS image is too large for the router flash memory.B. The TFTP server is unreachable from the router.C. The new IOS image is not correct for this router platform.D. The IOS image on the TFTP server is corrupt.E. There is not enough disk spa
22、ce on the TFTP server for the IOS image.QUESTION 413CCNA 考试报名 1700 元 180艾迪飞论坛 http:/Which statement is true?A. An IPv6 address is 64 b long and is represented as hexadecimal characters.B. An IPv6 address is 32 b long and is represented as decimal digits.C. An IPv6 address is 128 b long and is repres
23、ented as decimal digits.D. An IPv6 address is 128 b long and is represented as hexadecimal characters.QUESTION 414Which command sets and automatically encrypts the privileged enable mode password?A. enbale password c1scoB. secret enable c1scoC. password enable c1scoD. enable secret c1scoQUESTION 415
24、In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switchedLAN?A. after broken links are re-establishedB. in an improperly implemented redundant topologyC. when upper-layer protocols require high reliabilityD. during high traffic periodsE. when a dual r
25、ing topology is in useQUESTION 416Refer to the exhibit.Which is the most efficient summarization that R1 can use to advertise its networks toR2?A. 172.1.4.0/22B. 172.1.0.0/21C. 172.1.0.0/22D. 172.1.4.0/25172.1.4.128/25172.1.5.0/24172.1.6.0/24172.1.7.0/24E. 172.1.4.0/24172.1.5.0/24172.1.6.0/24172.1.7
26、.0/24QUESTION 417Refer to the exhibit.Based on the exhibited routing table,how will packets from a host within the192.168.10.192/26 LAN be forwarded to 192.168.10.1?A. The router will forward packets from R3 to R2 to R1B. The router will forward packets from R3 to R1C. The router will forward packet
27、s from R3 to R1 to R2D. The router will forward packets from R3 to R2 to R1 AND from R3 to R1QUESTION 418Which layer 2 protocol encapsulation type supports synchronous and asynchronous circuis and has built-insecurity mechanisms?A. Frame RelayB. HDLCC. x.25D. PPPQUESTION 419Which command can be used to verify the DLCI destination address in a Frame Relay static configuration?A. show frame-relay end-to-endB. show frame-relay mapC. show frame-relay lmiCCNA 考试报名 1700 元 183
