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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
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