Instant Access CompTIA.N10-009.v2026-04-15.q384 Actual Practice Test Engine for Free (Page 44)

Question 211

A network technician needs to resolve some issues with a customer's SOHO network. The customer reports that some of the PCs are not connecting to the network, while others appear to be working as intended.
INSTRUCTIONS
Troubleshoot all the network components.
Review the cable test results first, then diagnose by clicking on the appropriate PC, server, and Layer 2 switch.
Identify any components with a problem and recommend a solution to correct each problem.
If at any time you would like to bring back
the initial state of the simulation, please
click the Reset All button.

Question 212

A company recently rearranged some users' workspaces and moved several users to previously used workspaces. The network administrator receives a report that all of the users who were moved are having connectivity issues. Which of the following is the MOST likely reason?

A.Ports are error-disabled.
B.Ports have an incorrect native VLAN.
C.Ports are having an MDIX issue.
D.Ports are trunk ports.

Question 213

A customer needs six usable IP addresses. Which of the following best meets this requirement?

A.255.255.255.128
B.255.255.255.192
C.255.255.255.224
D.255.255.255.240

Question 214

Which of the following is used to describe the average duration of an outage for a specific service?

A.RTO
B.MTBF
C.RPO
D.MTTR

Question 215

Which of the following steps of the troubleshooting methodology would most likely include checking through each level of the OSI model after the problem has been identified?

A.Establish a theory.
B.Implement the solution.
C.Create a plan of action.
D.Verify functionality.

Correct Answer: D

* Introduction to Troubleshooting Methodology:
* Network troubleshooting involves a systematic approach to identifying and resolving network
* issues. The CompTIA Network+ certification emphasizes a structured troubleshooting methodology.
* Troubleshooting Steps:
* Identify the problem: Gather information, identify symptoms, and question users.
* Establish a theory of probable cause: Consider possible reasons for the issue.
* Test the theory to determine cause: Validate the theory with tests.
* Establish a plan of action to resolve the problem and implement the solution: Create and execute a resolution plan.
* Verify functionality and implement preventive measures: Ensure the solution works and prevent recurrence.
* Verifying Functionality:
* After implementing a solution, verifying functionality ensures that the problem is fully resolved.
This involves testing the network to confirm that it operates correctly.
* Checking through each level of the OSI model helps to ensure that all potential issues at different layers (physical, data link, network, transport, session, presentation, and application) are addressed.
* Explanation of the Options:
* A. Establish a theory: This step involves hypothesizing possible causes, not verifying functionality.
* B. Implement the solution: This step involves executing the resolution plan.
* C. Create a plan of action: This step involves planning the resolution, not verification.
* D. Verify functionality: This step involves comprehensive checks, including OSI model layers, to ensure the issue is fully resolved.
* Conclusion:
* Verifying functionality is a critical step in the troubleshooting process, ensuring that the network operates correctly after a solution is implemented. It involves thorough testing across all OSI model layers.
References:
* CompTIA Network+ guide explaining the troubleshooting methodology and the importance of verifying functionality (see page Ref 9†Basic Configuration Commands).

Question 211

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Question 213

Question 214

Question 215

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