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WorksheetsENSA Module Quiz 12 – Network Troubleshooting
Total questions: 23
Worksheet time: 12mins
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.
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
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
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
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
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?
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
Which troubleshooting software is an example of a network management system tool?
LANsurveyor
CyberGauge
WhatsUp Gold
Wireshark
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
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
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
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
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.
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.
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
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.
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
Which troubleshooting method begins by examining cable connections and wiring issues?
Bottom-up troubleshooting
Divide-and-conquer troubleshooting
Substitution troubleshooting
Top-down troubleshooting
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 3
Layer 7
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
Transport
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
Which three pieces of information are typically recorded in a logical topology diagram? (Choose three.)
Cable specifications
Device locations
IP addresses and prefix lengths
Routing protocols
Static routes
Which number represents the most severe level of syslog logging?
Zero
1
6
7
