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CompTIA N10-009 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
Topic 2
  • Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
Topic 3
  • Network Security: This section of the exam for cybersecurity specialists and network security administrators covers the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.
Topic 4
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions
Topic 5
  • Networking Concepts: For network administrators and IT support professionals, this domain covers

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CompTIA Network+ Certification Exam Sample Questions (Q449-Q454):

NEW QUESTION # 449
Users are experiencing significant lag while connecting to a cloud-based application during peak hours. An examination of the network reveals that the bandwidth is being heavily utilized. Further analysis shows that only a few users are using the application at any given time. Which of the following is the most cost-effective solution for this issue?

Answer: B

Explanation:
Quality of Service (QoS)is the best cost-effective solution. It prioritizes traffic based on application criticality. If the bandwidth is limited and only a few users are affected, prioritizing that application traffic can improve performance without needing costly bandwidth upgrades or direct connections.
Reference:


NEW QUESTION # 450
A network administrator upgraded the wireless access points and wants to implement a configuration that will give users higher speed and less channel overlap based on device compatibility. Which of the following will accomplish this goal?

Answer: A

Explanation:
Band steering allows wireless access points to automatically direct capable devices to the 5GHz band, which typically has higher throughput and less interference than the 2.4GHz band, improving performance. The document confirms:
"Band steering helps balance wireless client loads by steering dual-band capable devices to the 5GHz band, which offers higher speeds and less channel congestion than 2.4GHz."


NEW QUESTION # 451
What method should be used for enforcing authentication before allowing access to the network, ensuring only authorized users or devices can connect?

Answer: C

Explanation:
802.1X is a port-based Network Access Control (NAC) method that enforces authentication before allowing access to the network. It uses a RADIUS server for identity verification and policy enforcement, ensuring only authorized users/devices gain access.
* A. Standard ACL filters traffic by IP, not identity.
* B. MAC filtering controls devices by hardware address but can be spoofed.
* D. SSO (Single Sign-On) provides user convenience across services, not network-level access control.
References (CompTIA Network+ N10-009):
* Domain: Network Security - NAC, 802.1X authentication, identity-based access.


NEW QUESTION # 452
Which of the following should a network technician do to maintain remote administrative redundancy if a switch becomes unresponsive through SSH?

Answer: A

Explanation:
An out-of-band management solution is the best answer because it provides an alternate administrative path to network equipment when the normal production network path is unavailable. If a switch becomes unresponsive through SSH, the technician needs a separate management method that does not depend on the same in-band network connectivity. Out-of-band management can use a dedicated management network, console server, cellular connection, modem, or management interface to reach devices during outages or configuration failures.
The CompTIA Network+ N10-009 objectives include network operations, device management, availability, and remote access methods. SSH is an in-band management method when accessed over the production network. If routing, VLANs, ACLs, management services, or switch control-plane functions are affected, SSH may fail. Out-of-band access improves administrative redundancy and supports recovery.
A jump host can centralize administrative access, but it still depends on network connectivity to the switch.
An administrative GUI may also fail if management access is unavailable. A physical console cable can work locally, but the question specifically asks for remote administrative redundancy. Therefore, an out-of-band management solution is the best answer.


NEW QUESTION # 453
A network technician is troubleshooting network latency and has determined the issue to be occuring two network switches( Switch10 and Switch11). Symptoms reported included poor video performance and slow file copying. Given the following informtion:

Which of the following should the technician most likely do to resolve the issue?

Answer: A


NEW QUESTION # 454
......

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