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2025 CompTIA N10-009–High-quality Examcollection Questions Answers

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CompTIA N10-009 Exam Syllabus Topics:

Topic
Details

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 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 3

Networking Concepts: For network administrators and IT support professionals, this domain covers

Topic 4

Selection and configuration of wireless devices.

Topic 5

Cloud concepts and connectivity options, and Common networking ports.

Topic 6

Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and

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CompTIA Network+ Certification Exam Sample Questions (Q259-Q264):

NEW QUESTION # 259
A systems administrator is investigating why users cannot reach a Linux web server with a browser but can ping the server IP. The server is online, the web server process is running, and the link to the switch is up.
Which of the following commands should the administrator run on the server first?

A. traceroute
B. arp
C. netstat
D. tcpdump

Answer: C

Explanation:
Thenetstatcommand provides information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. Runningnetstaton the server can help the administrator verify that the web server process is listening on the expected port (e.g., port 80 for HTTP or port 443 for HTTPS) and that there are no issues with network connections. This is a crucial first step in diagnosing why the web server is not accessible via a browser.References:CompTIA Network+ study materials.

NEW QUESTION # 260
Which of the following facilities is the best example of a warm site in the event of information system disruption?

A. A combination of public and private cloud services to restore data
B. A partial infrastructure, software, and data on site
C. A full infrastructure in place, but no current data on site
D. A full electrical infrastructure in place, but no customer devices on site

Answer: C

Explanation:
A warm site typically has a full infrastructure ready, but it lacks the most up-to-date data or is not immediately operational. It requires some configuration or data restoration to become fully functional.

NEW QUESTION # 261
A wireless technician wants to implement a technology that will allow user devices to automatically navigate to the best available frequency standard. Which of the following technologies should the technician use?

A. Band steering
B. Directional antenna
C. Autonomous access point
D. Wireless LAN controller

Answer: A

Explanation:
Band Steering: This technology enables wireless devices to connect to the most optimal frequency band (2.4 GHz or 5 GHz) by encouraging capable devices to switch to the less congested 5 GHz band. This improves overall network performance and prevents overcrowding on the 2.4 GHz band.
Wireless LAN controller (B): This manages multiple access points in a network but does not handle frequency optimization.
Directional antenna (C): This focuses the signal in a specific direction but does not affect frequency selection.
Autonomous access point (D): This operates independently but lacks advanced features like band steering.
Reference: CompTIA Network+ Official Study Guide, Domain 1.6 (Wireless Standards and Technologies).

NEW QUESTION # 262
A network administrator notices uncommon communication between VMs on ephemeral ports on the same subnet. The administrator is concerned about that traffic moving laterally within the network. Which of the following describes the type of traffic flow the administrator is analyzing?

A. East-west
B. Horizontal-scaling
C. Point-to-point
D. Hub-and-spoke

Answer: A

Explanation:
When traffic moves laterally between VMs within the same network or subnet, it is known as east-west traffic. This contrasts with north-south traffic, which refers to communication between internal and external networks.
Breakdown of Options:
A: East-west - Correct answer. This refers to traffic between internal servers or VMs, which is a common security concern.
B: Point-to-point - Point-to-point describes a direct connection between two devices, but does not specifically define lateral movement.
C: Horizontal-scaling - This refers to adding more instances or nodes in cloud computing, unrelated to traffic flow.
D: Hub-and-spoke - This network topology describes a centralized design, not lateral traffic.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.4: Analyze traffic patterns and behavior.
NIST SP 800-207: Zero Trust Architecture (ZTA) - East-West traffic monitoring

NEW QUESTION # 263
Which of the following connectors allows a singular QSFP transceiver to have several physical connections?

A. RJ45
B. MPO
C. ST
D. LC

Answer: B

Explanation:
The MPO (Multi-fiber Push On) connector is designed to handle multiple fiber strands in a single connector, and it is commonly used with high-density transceivers like QSFP (Quad Small Form-factor Pluggable).
QSFP can support up to four channels (hence "quad"), and MPO connectors can interface multiple fibers (e.g.,
8, 12, 24), making them ideal for 40Gbps or 100Gbps deployments.
RJ45 (A) is used for Ethernet over copper.
ST (B) and LC (C) are single-fiber connectors - they don't support the multi-fiber needs of QSFP setups.
# Therefore, MPO is the correct connector type for this use case.
Reference:CompTIA Network+ N10-009 Official Study Guide - Objective 3.1: "Compare and contrast different types of connectors and transceivers."

NEW QUESTION # 264
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