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1、CCNA1_9_EnglishCCNA第一教期第9章实习1、What should a network administrator do first after receivinga call from a user who cannot access the company web server?Reboot the web server.WordStr the NIC of the computer.Ask the user to log off and log on again.Ask the user what URL has been typed and what error mes
2、sage displays.2、A customer called the cable company to report that the Internet connection is unstable. After trying several configuration changes, the technician decided to send the customer a new cable modem to try. What troubleshooting technique does this represent?top-downbottom-upsubstitutiontr
3、ial-and-errordivide-and-conquer3、Only one workstation on a particular network cannot reach the Internet. What is the first troubleshooting step if the divide-and-conquer method is being used?Check the NIC, and then check the cabling.Check the workstation TCP/IP configuration.Test all cables, and the
4、n test layer by layer up the OSI model. Attempt to Telnet, and then test layer by layer down the OSI model.4、Which two troubleshooting techniques are suitable for both home networks and large corporate networks? (Choose two.)having a backup ISRrunning network monitoring applicationsdocumenting the t
5、roubleshooting processkeeping a record of system upgrades and software versions keeping spare switches, routers, and other equipment available5、Identify two physical-layer network problems. (Choose two.)hardware failuresoftware configurationdevices not able to pingloose cable connectionsdevice drive
6、r configuration6、Which ipconfig command requests IP configuration from a DHCP server?ipconfigipconfig /allipconfig /renewipconfig /release7、What command is used to determine the location of delay fora packet traversing the Internet?ipconfignetstatnslookuppingtracert8、What command is used to determin
7、e if a DNS server is providing name resolution?ipconfignetstatnslookuptracert9、Which troubleshooting method begins by examining cable connections and wiring issues?top-downbottom-upsubstitutiondivide-and-conquer10、A technician suspects that a Linksys integrated router is the source of a network prob
8、lem. While troubleshooting, the technician notices a blinking green activity LED on some of the ports. What does this indicate?Self-diagnostics have not completed.The power supply is the source of the problem.The ports are operational and are receiving traffic.The ports are operational, but no traff
9、ic is flowing.There are no cables plugged into those ISR ports.The ports have cables plugged in, but they are not functional.11、A PC is plugged into a switch and is unable to connect to the network. The UTP cable is suspected. What could be the problem?A straight-through cable is being usedThe conne
10、ctors at both ends of the cable are RJ-45.The RJ-45 connectors are crimped onto the cable jacket.A crossover cable is being used.12、Refer to the graphic. What configuration is incorrect in the network shown?The host IP address is incorrect.The host subnet mask is incorrect.The host default gateway i
11、s incorrect.The wired connection is the wrong type of cable.The Linksys integrated router does not support wireless.13、Which three settings must match on the client and access point for a wireless connection to occur? (Choose three.) SSIDauthenticationMD5 checksumantennae typeencryption keyMAC addre
12、ss filters14、A technician is troubleshooting a security breach on a new wireless access point. Which three configuration settings make it easy for hackers to gain access? (Choose three.)configuring NATbroadcasting the SSIDusing open authenticationenabling MAC address filtersusing the default interna
13、l IP addressusing DHCP to provide IP addresses15、Refer to the graphic. The wireless host cannot access the Internet, but the wired host can. What is the problem?The host WEP key is incorrect.The host IP address is incorrect.The host subnet mask is incorrect.The host default gateway is incorrect.The
14、integrated router internal IP address is incorrect.The integrated router Internet IP address is incorrect.16、Refer to the graphic. What configuration is incorrect in the network shown?The host IP address is incorrect.The host subnet mask is incorrect.The host default gateway is incorrect.The wired c
15、onnection is the wrong type of cable.The Linksys integrated router does not support wireless.17、When acting as a DHCP server, what three types of information can an ISR provide to a client? (Choose three.)physical addressMAC addressdefault gatewaystatic IP addressdynamic IP addressDNS server address
16、18、What two items could be checked to verify connectivity between the router and the ISP? (Choose two.)router status page路由器形态页wireless card settingsrouter operating system versionlocal host operating system versionconnectivity status as indicated by LEDs19、A technician is unsuccessful in establishi
17、ng a console session between a PC and a Linksys integrated router. Both devices have power, and a cable is connected between them. Which two troubleshooting steps could help to diagnose this problem? (Choose two.)Ensure the correct cable is used.Ensure the SSID is the same on both devices.Ensure bot
18、h devices have the same IP address.Ensure both devices have different subnet masks.Ensure the encryption type on both devices match.Ensure the link status LED on the integrated router is lit.20、Network baselines should be performed in which two situations? (Choose two.)after the network is installed
19、 and running optimallyafter a virus outbreak is discovered on the networkafter major changes are implemented on the networkafter several computers are added to the networkat the end of the work week21、Typically, help desk personnel assist end users in which two tasks? (Choose two.)identifying when t
20、he problem occurreddetermining if other users are currently logged into the computerupdating network diagrams and documentationimplementing the solution to the problemrunning a network baseline testdetermining the cost of fixing the problem22、How does remote-access software help in the troubleshooti
21、ngprocess?Remote access uses a live chat feature.Users have to be present so that they can view LEDs and change cables if necessary.Diagnostics can be run without a technician being present at the site.FAQs can be consulted more easily.23、Which two items should be added to the documentation following a troubleshooting event? (Choose two.)final resolutionrepetitive measuresnumber of people involved in the problemaccurate current network infrastructure diagramsresults of successful and unsuccessful troubleshooting steps