Basic Network Quiz
A prac quiz
- 1.
What should a network administrator do first after receiving a call from a user who cannot access the company web server?
- A.
Reboot the web server.
- B.
Replace the NIC of the computer
- C.
Ask the user to log off and log on again
- D.
Ask the user what URL has been typed and what error message displays.
Correct Answer
D. Ask the user what URL has been typed and what error message displays.Explanation
The correct answer is to ask the user what URL has been typed and what error message displays. This is the first step a network administrator should take in troubleshooting the issue. By asking for the URL, the administrator can determine if the user is accessing the correct server. Additionally, by asking for the error message, the administrator can gather more information about the specific problem and potentially identify the root cause of the issue. Rebooting the web server or replacing the NIC of the computer may not be necessary or effective solutions if the problem lies elsewhere, and asking the user to log off and log on again may not address the underlying issue.Rate this question:
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- 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?
- A.
top-down
- B.
Bottom-up
- C.
Substitution
- D.
Trial-and-error
- E.
Divide-and-conquer
Correct Answer
C. SubstitutionExplanation
The technician's decision to send the customer a new cable modem represents the troubleshooting technique of substitution. This technique involves replacing a component or device with a known working one to determine if the issue is resolved. By sending a new cable modem, the technician is substituting the current modem with a different one to see if it resolves the unstable Internet connection problem.Rate this question:
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- 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?
- A.
Check the NIC, and then check the cabling
- B.
Check the workstation TCP/IP configuration
- C.
Test all cables, and then test layer by layer up the OSI model
- D.
Attempt to Telnet, and then test layer by layer down the OSI model
Correct Answer
B. Check the workstation TCP/IP configurationExplanation
The first troubleshooting step in the divide-and-conquer method would be to check the workstation TCP/IP configuration. This step is important because if there is an issue with the TCP/IP configuration, such as incorrect IP address or subnet mask, it could prevent the workstation from accessing the Internet. By checking the TCP/IP configuration, you can identify and correct any misconfigurations that may be causing the issue.Rate this question:
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- 4.
Which two troubleshooting techniques are suitable for both home networks and large corporate networks? (Choose two.)
- A.
Having a backup ISR
- B.
Running network monitoring applications
- C.
Documenting the troubleshooting process
- D.
Keeping a record of system upgrades and software versions
- E.
Keeping spare switches, routers, and other equipment available
Correct Answer(s)
C. Documenting the troubleshooting process
D. Keeping a record of system upgrades and software versionsExplanation
Documenting the troubleshooting process and keeping a record of system upgrades and software versions are suitable for both home networks and large corporate networks. These techniques help in maintaining a systematic approach to troubleshooting and ensure that any changes or upgrades made to the network are properly recorded. This documentation can be useful in identifying patterns or recurring issues, as well as in tracking the performance and compatibility of different software versions. Additionally, having a record of system upgrades and software versions can aid in troubleshooting by allowing network administrators to identify any potential conflicts or compatibility issues that may arise.Rate this question:
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- 5.
Identify two physical-layer network problems. (Choose two.)
- A.
Hardware failure
- B.
Software configuration
- C.
Devices not able to ping
- D.
Loose cable connections
- E.
Device driver configuration
Correct Answer(s)
A. Hardware failure
D. Loose cable connectionsExplanation
The two physical-layer network problems are hardware failure and loose cable connections. Hardware failure refers to any malfunction or breakdown of network devices or components, such as routers, switches, or network interface cards. This can lead to network disruptions or complete failure. Loose cable connections can cause intermittent or complete loss of network connectivity. If cables are not securely plugged in or if there are damaged or frayed cables, data transmission can be affected, resulting in network issues.Rate this question:
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- 6.
Which ipconfig command requests IP configuration from a DHCP server?
- A.
Ipconfig
- B.
Ipconfig /all
- C.
Ipconfig /renew
- D.
Ipconfig /release
Correct Answer
C. Ipconfig /renewExplanation
The ipconfig /renew command is used to request IP configuration from a DHCP server. This command is used to renew the IP address lease obtained from the DHCP server. By running this command, the computer sends a request to the DHCP server to extend the lease of the current IP address or obtain a new IP address if the lease has expired.Rate this question:
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- 7.
What command is used to determine the location of delay for a packet traversing the Internet?
- A.
Ipconfig
- B.
Netstat
- C.
Nslookup
- D.
Ping
- E.
Tracert
Correct Answer
E. TracertExplanation
The correct answer is tracert. Tracert is a command used to determine the location of delay for a packet traversing the Internet. It provides a detailed report of the path that a packet takes from the source to the destination, showing the IP addresses of each hop along the way and the time it takes for the packet to reach each hop. By analyzing the output of tracert, network administrators can identify any bottlenecks or points of delay in the network.Rate this question:
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- 8.
What command is used to determine if a DNS server is providing name resolution?
- A.
Ipconfig
- B.
Netstat
- C.
Nslookup
- D.
Tracert
Correct Answer
C. NslookupExplanation
The command "nslookup" is used to determine if a DNS server is providing name resolution. Nslookup stands for "name server lookup" and it is a command-line tool that allows users to query DNS servers for information about domain names. By using nslookup, users can check if a DNS server is correctly resolving domain names to IP addresses, helping to troubleshoot any DNS issues.Rate this question:
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- 9.
Which troubleshooting method begins by examining cable connections and wiring issues?
- A.
Top down
- B.
Bottom up
- C.
Substitution
- D.
Divide and conquer
Correct Answer
B. Bottom upExplanation
The bottom-up troubleshooting method begins by examining cable connections and wiring issues. This approach involves starting from the physical layer and working upwards, checking for any faults or problems with the cables and connections. By addressing these issues first, it helps to eliminate any potential problems at the foundational level before moving on to higher layers of the troubleshooting process.Rate this question:
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- 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?
- A.
Self-diagnostics have not completed
- B.
The power supply is the source of the problem
- C.
The ports are operational and are receiving traffic
- D.
The ports are operational, but no traffic is flowing
- E.
There are no cables plugged into those ISR ports.
- F.
The ports have cables plugged in, but they are not functional.
Correct Answer
C. The ports are operational and are receiving trafficExplanation
The blinking green activity LED on the ports indicates that they are operational and receiving traffic. This means that the Linksys integrated router is functioning properly and there is activity happening on the network.Rate this question:
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- 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.
A straight-through cable is being used
- B.
The connectors at both ends of the cable are RJ-45.
- C.
The RJ-45 connectors are crimped onto the cable jacket.
- D.
A crossover cable is being used.
Correct Answer
D. A crossover cable is being used.Explanation
The problem could be that a crossover cable is being used. A crossover cable is used to directly connect two devices of the same type, such as two PCs or two switches. In this scenario, a PC is connected to a switch, so a straight-through cable should be used instead. A straight-through cable is used to connect different types of devices, such as a PC and a switch. Therefore, using a crossover cable in this situation would prevent the PC from connecting to the network.Rate this question:
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- 12.
Which three settings must match on the client and access point for a wireless connection to occur? (Choose three.)
- A.
SSID SSID ssid
- B.
Authentication
- C.
MD5 Checksum
- D.
Antennae Type
- E.
Encryption Key
- F.
MAC address Filters
Correct Answer(s)
A. SSID SSID ssid
B. Authentication
E. Encryption KeyExplanation
To establish a wireless connection, three settings that must match on the client and access point are SSID, authentication, and encryption key. The SSID is the network name that both the client and access point must have the same to connect. Authentication refers to the method used to verify the client's identity, such as a password or certificate, which must be identical on both devices. The encryption key is used to secure the wireless connection and must match on both the client and access point for successful communication.Rate this question:
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- 13.
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.)
- A.
Configuring NAT
- B.
Broadcasting the SSID
- C.
Using open authentication
- D.
Enabling MAC address filters
- E.
Using the default internal IP address
- F.
Using DHCP to provide IP addresses
Correct Answer(s)
B. Broadcasting the SSID
C. Using open authentication
E. Using the default internal IP address -
- 14.
Refer to the graphic. The wireless host cannot access the Internet but the wired host can. What is the problem?
- A.
The host WEP key is incorrect.
- B.
The host IP address is incorrect
- C.
The host subnet mask is incorrect
- D.
The host default gateway is incorrect
- E.
The integrated router internal IP address is incorrect.
- F.
The integrated router Internet IP address is incorrect.
Correct Answer
A. The host WEP key is incorrect.Explanation
The correct answer is that the host WEP key is incorrect. The WEP key is used for wireless security and encryption. If the key is incorrect, the wireless host will not be able to establish a secure connection with the wireless router, thereby preventing access to the Internet. The other options, such as incorrect IP address, subnet mask, default gateway, or router IP address, would not specifically affect the wireless host's ability to access the Internet.Rate this question:
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- 15.
Refer to the graphic. What configuration is incorrect in the network shown
- A.
The host IP address is incorrect.
- B.
The host subnet mask is incorrect
- C.
The host default gateway is incorrect
- D.
The wired connection is the wrong type of cable
- E.
The Linksys integrated router does not support wireless.
Correct Answer
A. The host IP address is incorrect.Explanation
The incorrect configuration in the network shown is the host IP address.Rate this question:
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- 16.
When acting as a DHCP server, what three types of information can an ISR provide to a client? (Choose three.)
- A.
Physical address
- B.
MAC address
- C.
Default gateway
- D.
Static IP address
- E.
Dynamic IP address
- F.
DNS server address
Correct Answer(s)
C. Default gateway
E. Dynamic IP address
F. DNS server addressExplanation
When acting as a DHCP server, an ISR can provide three types of information to a client: default gateway, dynamic IP address, and DNS server address. The default gateway is the IP address of the router that allows the client to communicate with devices on other networks. The dynamic IP address is assigned to the client temporarily and can change each time the client connects to the network. The DNS server address is the IP address of the server that translates domain names into IP addresses, allowing the client to access websites and other network resources.Rate this question:
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- 17.
What two items could be checked to verify connectivity between the router and the ISP? (Choose two.)
- A.
Router status page
- B.
Wireless card settings
- C.
router operating system version
- D.
Local host operating system version
- E.
Connectivity status as indicated by LEDs
Correct Answer(s)
A. Router status page
E. Connectivity status as indicated by LEDsExplanation
To verify connectivity between the router and the ISP, two items that can be checked are the router status page and the connectivity status as indicated by LEDs. The router status page provides information about the router's connection to the ISP, including the IP address, DNS settings, and connection status. The connectivity status as indicated by LEDs can show if there is a physical connection between the router and the ISP, as the LEDs will typically indicate if there is a successful connection or any issues with the connection.Rate this question:
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- 18.
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.)
- A.
Ensure the correct cable is used
- B.
Ensure the SSID is the same on both devices.
- C.
Ensure both devices have the same IP address.
- D.
Ensure both devices have different subnet masks
- E.
Ensure the encryption type on both devices match.
- F.
Ensure the link status LED on the integrated router is lit.
Correct Answer(s)
A. Ensure the correct cable is used
F. Ensure the link status LED on the integrated router is lit.Explanation
The first step to diagnose the problem would be to ensure the correct cable is used. If the wrong cable is used, it may not establish a proper connection between the PC and the router. The second step would be to check if the link status LED on the integrated router is lit. If the LED is not lit, it indicates that there may be an issue with the router or the connection between the router and the PC. These two troubleshooting steps can help identify and resolve the issue with establishing a console session between the PC and the Linksys integrated router.Rate this question:
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- 19.
Network baselines should be performed in which two situations? (Choose two.)
- A.
After the network is installed and running optimally
- B.
After a virus outbreak is discovered on the network
- C.
After major changes are implemented on the network
- D.
After several computers are added to the network
- E.
At the end of the work week
Correct Answer(s)
A. After the network is installed and running optimally
C. After major changes are implemented on the networkExplanation
Network baselines should be performed after the network is installed and running optimally to establish a reference point for future performance evaluations. They should also be performed after major changes are implemented on the network to ensure that the changes have not negatively impacted the network's performance or security.Rate this question:
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- 20.
Typically, help desk personnel assist end users in which two tasks? (Choose two.)
- A.
Identifying when the problem occored
- B.
determining if other users are currently logged into the computer
- C.
Updating network diagrams and documentation
- D.
Implementing the solution to the problem
- E.
Running a network baseline test
- F.
determining the cost of fixing the problem
Correct Answer(s)
A. Identifying when the problem occored
D. Implementing the solution to the problemExplanation
Help desk personnel typically assist end users in identifying when the problem occurred and implementing the solution to the problem. They help users troubleshoot and diagnose issues by gathering information about when the problem started and what actions were taken before it occurred. They also provide step-by-step guidance on how to resolve the problem and may remotely access the user's computer to fix the issue.Rate this question:
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- 21.
How does remote-access software help in the troubleshooting process?
- A.
Remote access uses a live chat feature.
- B.
Users have to be present so that they can view LEDs and change cables if necessary.
- C.
Diagnostics can be run without a technician being present at the site.
- D.
FAQs can be consulted more easily.
Correct Answer
C. Diagnostics can be run without a technician being present at the site.Explanation
Remote-access software allows technicians to access and control a computer or device from a remote location. This means that they can troubleshoot and diagnose issues without physically being present at the site. By remotely accessing the device, technicians can run diagnostics, perform troubleshooting steps, and make necessary changes or adjustments without the need for a technician to be physically present. This saves time and resources, as technicians can resolve issues more quickly and efficiently.Rate this question:
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- 22.
Which two items should be added to the documentation following a troubleshooting event? (Choose two.)
- A.
Final resolution
- B.
repetitive measures
- C.
Number of people involved in the problem
- D.
Accurate current network infrastructure diagrams
- E.
Results of successful and unsuccessful troubleshooting steps
Correct Answer(s)
A. Final resolution
E. Results of successful and unsuccessful troubleshooting stepsExplanation
Following a troubleshooting event, it is important to add the final resolution to the documentation as it provides a clear and concise summary of how the problem was resolved. Additionally, including the results of successful and unsuccessful troubleshooting steps helps to provide a comprehensive record of the actions taken during the troubleshooting process, aiding in future reference and analysis.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Jul 25, 2012Quiz Created by
Billl3
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