CCNA Answers – CCNA Exam – CCNA Exams – CCNA Module-1-2-3-4: CCNA Discovery 1 - Chapter 9 Exam Answers Version 4.0

ad

Thursday 2 August 2012

CCNA Discovery 1 - Chapter 9 Exam Answers Version 4.0

1. What should a network administrator do first after receiving a call from a user who cannot access the company web server? 
• Reboot the web server. 
• Replace 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 message 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-down 
• bottom-up 
• substitution 
• trial-and-error 
• divide-and-conquer 

3. 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 then 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 ISR 
• running network monitoring applications 
• documenting the troubleshooting process
• keeping a record of system upgrades and software versions
 
• keeping spare switches, routers, and other equipment available 

5. Identify two physical-layer network problems. (Choose two.) 
• hardware failure 
• software configuration 
• devices not able to ping 
• loose cable connections 
• device driver configuration 

6. Which ipconfig command requests IP configuration from a DHCP server? 
• ipconfig 
• ipconfig /all 
• ipconfig /renew 
• ipconfig /release 

7. What command is used to determine the location of delay for a packet traversing the Internet? 
• ipconfig 
• netstat 
• nslookup 
• ping 
• tracert 

8. What command is used to determine if a DNS server is providing name resolution? 
• ipconfig 
• netstat 
• nslookup 
• tracert 

9. Which troubleshooting method begins by examining cable connections and wiring issues? 
• top-down 
• bottom-up • substitution 
• divide-and-conquer 

10. A technician suspects that a Linksys integrated router is the source of a network problem. 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 traffic 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 used 
• The connectors 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 is 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.) 
• SSID
• authentication 
• MD5 checksum 
• antennae type 
• encryption key 
• MAC address filters 

14. 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 NAT 
• broadcasting the SSID
• using open authentication 
• enabling MAC address filters 
• using the default internal IP address 
• using DHCP to provide IP addresses 

15. 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 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 connection 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 address 
• MAC address 
• default gateway 
• static IP address 
• dynamic IP address
• DNS server address
 

18. What two items could be checked to verify connectivity between the router and the ISP? (Choose two.) 
• router status page 
• wireless card settings 
• router operating system version 
• local host operating system version 
• connectivity status as indicated by LEDs 

19. A technician is unsuccessful in establishing 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 both 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 and running optimally 
• after a virus outbreak is discovered on the network 
• after major changes are implemented on the network 
• after several computers are added to the network 
• at the end of the work week 

21. Typically, help desk personnel assist end users in which two tasks? (Choose two.) 
• identifying when the problem occurred 
• determining if other users are currently logged into the computer 
• updating network diagrams and documentation 
• implementing the solution to the problem 
• running a network baseline test 
• determining the cost of fixing the problem 

22. How does remote-access software help in the troubleshooting process? 
• 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 resolution 
• repetitive measures 
• number of people involved in the problem 
• accurate current network infrastructure diagrams 
• results of successful and unsuccessful troubleshooting steps

1 comment: