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CompTIA N10-009 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Cloud concepts and connectivity options, and Common networking ports.
Topic 2
  • Selection and configuration of wireless devices.
Topic 3
  • 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 4
  • 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 5
  • Networking Concepts: For network administrators and IT support professionals, this domain covers

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CompTIA Network+ Certification Exam Sample Questions (Q540-Q545):

NEW QUESTION # 540
A company experiences an incident involving a user who connects an unmanaged switch to the network.
Which of the following technologies should the company implement to help avoid similar incidents without conducting an asset inventory?

Answer: B

Explanation:
Port security is a Layer 2 security feature that restricts the number of devices connecting to a network switch port. It helps prevent unauthorized devices, such as an unmanaged switch, from being connected to the network.
How Port Security Works:
Limits the number of MAC addresses that can connect to a port.
Can shut down or restrict the port if an unauthorized device is detected.
Prevents users from plugging in unauthorized networking equipment (e.g., unmanaged switches, hubs).
Incorrect Options:
A:Screened Subnet: A screened subnet (DMZ) is used for isolating external-facing servers, not for controlling unauthorized network connections.
B:802.1X: Provides authentication for devices but requires a RADIUS server, which is a more complex solution than port security.
C:MAC Filtering: Controls which MAC addresses can connect but is difficult to manage and can be spoofed.


NEW QUESTION # 541
A user reports having intermittent connectivity issues to the company network. The network configuration for the user reveals the following:
IP address: 192.168.1.10
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.254
The network switch shows the following ARP table:

Which of the following is the most likely cause of the user ' s connection issues?

Answer: A

Explanation:
This scenario describes a duplicate IP address. The ARP table shows two different MAC addresses (0c00.
1134.0001 and 0c00.1298.d239) associated with the same IP address (192.168.1.10), which leads to ARP table conflicts and intermittent connectivity.
From Andrew Ramdayal's guide:
"Duplicate IP addresses occur when two devices on the same network are assigned the same IP address, causing network conflicts. Common issues include manual configuration errors or DHCP lease issues.
Resolution includes using IP management tools and avoiding overlaps in DHCP and static IP assignments."


NEW QUESTION # 542
A network technician is requesting a fiber patch cord with a connector that is round and twists to install. Which of the following is the proper name of this connector type?

Answer: B

Explanation:
The ST (Straight Tip) connector uses a round, bayonet-style twist lock mechanism for installation.


NEW QUESTION # 543
A network administrator is trying to locate the switch interface a PC is connected to. The administrator accesses the local switch, pings the PC IP address, and then uses the command show arp. Which of the following commands should the administrator use next?

Answer: A


NEW QUESTION # 544
Which of the following network cables involves bouncing light off of protective cladding?

Answer: A

Explanation:
Comprehensive and Detailed Explanation (aligned to N10-009):
Multimode fiber uses multiple paths (modes) of light that bounce off the cladding to travel through the fiber.
This is effective for shorter distances but more prone to dispersion.
A). Twinaxial is copper, not fiber.
B). Coaxial carries electrical signals, not light.
C). Single-mode fiber uses a single light path directly through the core without bouncing.
References (CompTIA Network+ N10-009):
Domain: Networking Concepts - Fiber optics: single-mode vs. multimode.


NEW QUESTION # 545
......

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