2026 Actual CompTIA N10-009 Dumps, Updated Exam Questions for Guaranteed Pass

N10-009 free sample questions and answers

CompTIA N10-009 practice quiz with correct answers for search indexing.

1. Question 1

   Which of the following cloud service models most likely requires the greatest up-front expense by the customer when migrating a data center to the cloud?

   AInfrastructure as a service
   

   BSoftware as a service
   

   CPlatform as a service
   

   DNetwork as a service
   

   Correct answer: A

   
   

2. Question 2

   A network administrator wants to restrict inbound traffic to allow only HTTPS to the company website, denying all other inbound traffic from the internet. Which of the following would best accomplish this goal?

   AACL on the edge firewall
   

   BPort security on an access switch
   

   CContent filtering on a web gateway
   

   DURL filtering on an outbound proxy
   

   Correct answer: A

   AnAccess Control List (ACL)configured on theedge firewallis the correct and most effective solution tofilter inbound traffic. The administrator can allow TCP port 443 (HTTPS) and deny all other traffic. This is a classic firewall configuration for securing public-facing servers.

   
   

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3. Question 3

   A user reports issues connecting to the wireless network. A network technician notices the following:

   * Several wireless networks are available externally from other businesses

   * APs configured in the building are set to use the maximum amount of power

   * Signal strength:

   First floor lobby: -55 dBm

   Break room: -78 dBm

   Conference room: -67 dBm

   Office area: -61 dBm

   Walking path around the building: -80 dBm* Channels in use: 1, 5, 44, 32

   Which of the following is causing the user's wireless issues?

   AAP power settings
   

   BChannel overlap
   

   CRogue devices
   

   DInterference outside the lobby
   

   Correct answer: B

   Channel overlap is the most likely cause of the wireless issues. In the 2.4 GHz band, the commonly recommended non-overlapping channels are 1, 6, and 11. The listed channels include 1 and 5, which overlap. When nearby access points use overlapping channels, their transmissions can interfere with each other, causing retransmissions, reduced throughput, connection instability, and poor roaming behavior.

   The CompTIA Network+ N10-009 objectives include wireless standards, frequency bands, channel planning, signal strength, interference, and troubleshooting wireless connectivity. Proper channel planning is essential in environments where multiple APs and neighboring wireless networks are present. Since the question specifically lists external wireless networks and internal channel usage, channel overlap is the strongest answer.

   Maximum AP power can contribute to excessive coverage and co-channel interference, but the clearest technical issue shown in the data is the use of overlapping channels. Rogue devices are not identified in the scenario. Interference outside the lobby is not supported by the signal readings, and the lobby signal is actually strong at -55 dBm. Therefore, channel overlap is the best answer.

   
   

4. Question 4

   Users report latency with a SaaS application. Which of the following should a technician adjust to fix the issue?

   AServer hardware specifications
   

   BData-at-rest encryption settings
   

   CNetwork bandwidth and utilization
   

   DVirtual machine configurations
   

   Correct answer: C

   The correct answer is Network bandwidth and utilization because latency issues with a SaaS (Software as a Service) application are most commonly related to network performance constraints, not local server hardware or virtualization settings. According to CompTIA Network+ (N10-009) troubleshooting objectives, technicians should evaluate bandwidth capacity, throughput, congestion, packet loss, and overall utilization when diagnosing performance issues affecting cloud-based applications.

   Since SaaS applications are hosted externally by a service provider, the organization typically does not control the underlying server hardware or virtual machine configurations (Options A and D). Therefore, adjusting internal server specifications would not resolve user-side latency.

   Option B, data-at-rest encryption, applies to stored data security and does not impact real-time application responsiveness.

   High network utilization, insufficient bandwidth, QoS misconfiguration, or WAN congestion can significantly increase latency. Technicians should review network monitoring tools, check interface statistics, analyze traffic patterns, and verify Quality of Service (QoS) policies to ensure SaaS traffic is prioritized appropriately.

   Thus, optimizing bandwidth and reducing network congestion is the most appropriate corrective action.

   
   

5. Question 5

   Which of the following steps of the troubleshooting methodology comes after testing the theory to determine cause?

   AVerify full system functionality.
   

   BDocument the findings and outcomes.
   

   CEstablish a plan of action.
   

   DIdentify the problem.
   

   Correct answer: C

   The CompTIA Troubleshooting Methodology states that after testing the theory, the next step is to establish a plan of action to resolve the issue.

   Troubleshooting Steps:

   Identify the problem.

   Establish a theory of probable cause.

   Test the theory to determine the cause.

   Establish a plan of action and implement the solution. (Correct step)

   Verify full system functionality.

   Document findings, actions, and outcomes.

   Breakdown of Options:

   A . Verify full system functionality -- Happens after implementing the solution.

   B . Document the findings and outcomes -- Final step, happens after resolving the issue.

   C . Establish a plan of action -- Correct answer. Comes immediately after confirming the cause.

   D . Identify the problem -- First step, already completed.

   
   

   CompTIA Network+ (N10-009) Official Study Guide -- Domain 5.1: Explain network troubleshooting methodology.