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