Module 8.6.3 Troubleshoot Common Network Problems Quiz Answers
Network Addressing and Basic Troubleshooting – Module 8.6.3 Troubleshoot Common Network Problems Quiz Answers
1. A user calls the help desk to report a workstation problem. Which three questions would produce the most helpful information for troubleshooting? (Choose three.)
- If you received an error message, what was it?
- What changes have you made to your workstation?
- Do you have the warranty for your workstation?
- What operating system version is running on your workstation?
- Have you used a network monitoring tool on your workstation?
- Have you performed a backup recently?
2. Users are complaining that they are unable to browse certain websites on the Internet. An administrator can successfully ping a web server via its IP address, but cannot browse to the domain name of the website. Which troubleshooting tool would be most useful in determining where the problem is?
- netstat
- tracert
- nslookup
- ipconfig
3. What are two common causes of a physical layer network connectivity problem? (Choose two.)
- a monitor unplugged
- an Ethernet cable plugged into a wrong port
- an incorrect default gateway
- an unassigned IP address
- a faulty Ethernet cable
4. The home computer of a user is working properly. However, the user cannot access the Internet. The Internet connection is provided through a cable company. The user cannot identify the cause of the problem. Who should the user contact for further help?
- the operating system vendor
- the help line of the cable company
- the help line of the computer manufacturer
- the support web site of the computer vendor
5. Which troubleshooting method begins by examining cable connections and wiring issues?
- top-down
- bottom-up
- substitution
- divide-and-conquer
6. A user is unable to connect to the Internet. The network administrator decides to use the top-down troubleshooting approach. Which action should the administrator perform first?
- Run the tracert command to identify the faulty device.
- Check the patch cable connection from the PC to the wall.
- Enter an IP address in the address bar of the web browser to determine if DNS has failed.
- Run the ipconfig command to verify the IP address, subnet mask, and gateway on the PC.
7. If an administrator is troubleshooting a WLAN using a bottom up approach, which action would be taken first?
- Update the firmware on the AP.
- Make sure all devices are powered on.
- Ping the AP.
- Verify that the GUI interface is accessible from a client.
8. A laptop cannot connect to a wireless access point. Which two troubleshooting steps should be taken first? (Choose two.)
- Ensure that the wireless NIC is enabled.
- Ensure that the laptop antenna is attached.
- Ensure that the wireless SSID is chosen.
- Ensure that the correct network media is selected.
- Ensure that the NIC is configured for the proper frequency.
9. For the second time in a week, workstations on a LAN are not able to log into a specific server. The technician fixed the problem the first time, but cannot remember the steps taken to solve it. What aspect of the troubleshooting process has the technician neglected?
- identifying the problem
- asking questions of end users
- documenting the troubleshooting process
- using structured techniques to solve a problem
10. A technician suspects that a new switch 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?
- There are no cables plugged into the ports.
- 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.
11. 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
- divide-and-conquer
12. Which step should be taken next once a problem is resolved during a troubleshooting process?
- Consult an FAQ.
- Escalate the problem.
- Update the documentation.
- Run remote access software.
13. A technician installed a network adapter in a computer and wants to test network connectivity. The ping command can receive responses from workstations on the same subnet but not from remote workstations. What could be causing the problem?
- The NIC driver is out of date.
- The operating system is not compatible with the remote sites.
- The TCP/IP protocol stack is not loaded.
- The default gateway is incorrect.