12.6.4 Module Quiz – Network Troubleshooting Answers
1. Which statement describes the physical topology for a LAN?
- It depicts the addressing scheme that is employed in the LAN.
- It describes whether the LAN is a broadcast or token-passing network.
- It defines how hosts and network devices connect to the LAN.
- It shows the order in which hosts access the network.
2. A network engineer is troubleshooting a network problem where users cannot access the FTP server at the same IP address where a website can be successfully accessed. Which troubleshooting method would be the best to apply in this case?
- comparing IP settings on user workstations
- top-down
- bottom-up
- divide-and-conquer
3. A computer technician performed a number of actions to correct a problem. Some actions did not solve the problem, but eventually a solution was found. What should be documented?
- everything that was done to try to solve the problem
- only the solution, because this solved the problem
- a description of the problem and solution
- only the failed attempts, so that future technicians will know what not to try
4. A network engineer is troubleshooting a network problem and can successfully ping between two devices. However, Telnet between the same two devices does not work. Which OSI layers should the administrator investigate next?
- all of the layers
- from the network layer to the application layer
- from the network layer to the physical layer
- only the network layer
5. While designing changes to a data center because of a new IoE implementation, a network administrator has the job of diagramming the new physical topology of the area. What should be included in the physical topology diagram?
- technical specifications of firewalls
- the service level agreement from the ISP
- cable locations and lengths between servers and switches
- the IP addressing scheme for all workstations in the company
6. A network technician is troubleshooting an email connection problem. Which question to the end-user will provide clear information to better define the problem?
- What kind of equipment are you using to send emails?
- How big are the emails you tried to send?
- Is your email working now?
- When did you first notice your email problem?
7. Which troubleshooting tool can be used to pinpoint the distance to a break in a network cable?
- network analyzer
- network analysis module
- cable tester
- digital multimeter
8. Which troubleshooting software is an example of a network management system tool?
- LANsurveyor
- CyberGauge
- WhatsUp Gold
- Wireshark
9. What is the purpose of establishing a network baseline?
- to document and analyze the network traffic
- to help monitor and troubleshoot network performance
- to provide an inventory of network devices
- to verify the configuration of routers and switches on the network
10. After which step in the network troubleshooting process would one of the layered troubleshooting methods be used?
- determining ownership
- narrowing the scope
- documenting symptoms
- gathering symptoms from suspect devices
11. A company is setting up a website with SSL technology to protect the authentication credentials required to access the website. A network engineer needs to verify that the setup is correct and that the authentication is indeed encrypted. Which tool should be used?
- fault-management tool
- baselining tool
- protocol analyzer
- cable analyzer
12. When should a network performance baseline be measured?
- immediately after the main network devices restarted
- during normal work hours of an organization
- after normal work hours to reduce possible interruptions
- when a denial of service attack to the network is detected and blocked
13. A networked PC is having trouble accessing the Internet, but can print to a local printer and ping other computers in the area. Other computers on the same network are not having any issues. What is the problem?
- The default gateway router does not have a default route.
- The switch port to which the PC connects has an incorrect VLAN configured.
- The PC has a missing or incorrect default gateway.
- The link between the switch to which the PC connects and the default gateway router is down.
14. 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 operating system is not compatible with the remote sites.
- The TCP/IP protocol stack is not loaded.
- The default gateway is incorrect.
- The NIC driver is out of date.
15. What network troubleshooting capability is provided by a cable analyzer?
- testing and certifying of copper and fiber cables
- generating reports on traffic that is consuming critical network resources
- measuring electrical values of voltage, current, and resistance
- discovering VLAN configuration and viewing switch interface details
16. In which step of gathering symptoms does a network engineer determine whether the problem is at the core, distribution, or access layer of the network?
- Determine ownership.
- Determine the symptoms.
- Document the symptoms.
- Gather information.
- Narrow the scope.
17. A team of engineers has identified a solution to a significant network problem. The proposed solution is likely to affect critical network infrastructure components. What should the team follow while implementing the solution to avoid interfering with other processes and infrastructure?
- Change-control procedures
- Knowledge base guidelines
- One of the layered troubleshooting approaches
- Syslog messages and reports
18. Which troubleshooting method begins by examining cable connections and wiring issues?
- Bottom-up troubleshooting
- Divide-and-conquer troubleshooting
- Substitution troubleshooting
- Top-down troubleshooting
19. An administrator is troubleshooting an Internet connectivity problem on a router. The output of the show interfaces gigabitethernet 0/0 command reveals higher-than-normal framing errors on the interface that connects to the Internet. At what layer of the OSI model is the problem likely occurring?
- Layer 1
- Layer 2
- Layer 3
- Layer 4
- Layer 7
20. Users report that the new website http://www.company1.biz cannot be accessed. The help desk technician checks and verifies that the website can be accessed with http://www.company1.biz:90. Which layer in the TCP/IP model is involved in troubleshooting this issue?
- Application
- Internet
- Network access
- Transport
21. A user reports that after an OS patch of the networking subsystem has been applied to a workstation, the workstation performs very slowly when connecting to network resources. A network technician tests the link with a cable analyzer and notices that the workstation sends an excessive number of frames smaller than 64 bytes and also other meaningless frames. What is the possible cause of the problem?
- Cabling faults
- Corrupted application installation
- Corrupted NIC driver
- Ethernet signal attenuation
22. Which three pieces of information are typically recorded in a logical topology diagram? (Choose three.)
- Cable specifications
- Device locations
- Device models and manufacturers
- IP addresses and prefix lengths
- Routing protocols
- Static routes
23. Which number represents the most severe level of syslog logging?
- 0
- 1
- 6
- 7