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CompTIA N10-009 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Selection and configuration of wireless devices.
Topic 2
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions
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
  • 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 5
  • Networking Concepts: For network administrators and IT support professionals, this domain covers

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CompTIA Network+ Certification Exam Sample Questions (Q485-Q490):

NEW QUESTION # 485
Which of the following is used to store and deliver content to clients in a geographically distributed manner using edge servers?

Answer: D

Explanation:
A Content Delivery Network (CDN) stores cached versions of content in edge locations to deliver data faster and more reliably to users based on geographical proximity.
From Andrew Ramdayal's guide:
"CDNs distribute content to multiple, geographically dispersed servers. This enhances performance and reliability for end-users by reducing latency and load times."


NEW QUESTION # 486
A network administrator is creating a subnet that will include 45 separate hosts on a small private network within a large network architecture. Which of the following options is the most efficient use of network addresses when assigning this network?

Answer: D

Explanation:
For 45 hosts, the minimum subnet size must allow at least 46 usable addresses (1 each for network and broadcast addresses).
* A /26 subnet provides 64 addresses, 62 usable - suitable.
* A /27 subnet gives only 30 usable - insufficient.
* A /25 offers 126 usable - more than needed.
* A /28 provides just 14 - too small.
So, the most efficient subnet with minimal wastage is /26.
From Andrew Ramdayal's guide:
"When designing subnets, always choose the smallest subnet mask that still accommodates all hosts. A /26 provides 62 usable host addresses, suitable for networks with about 50 hosts."


NEW QUESTION # 487
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: B

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 # 488
A network technician sets up a computer on the accounting department floor for a user from the marketing department. The user reports that they cannot access the marketing department's shared drives but can access the internet. Which of the following is the most likely cause of this issue?

Answer: D

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The user's inability to access the marketing department's shared drives, despite having internet access, suggests a network segmentation issue. The most likely cause is an incorrect VLAN assignment. The computer is physically located on the accounting department floor, and the switchport is likely configured for the accounting VLAN, not the marketing VLAN. VLANs segment network traffic, and if the computer is in the wrong VLAN, it cannot communicate with the marketing department's resources.
Why not Mismatched switchport duplex? Duplex mismatches cause performance issues (e.g., packet loss) but not specific access denials to shared drives.
Why not Misconfigured gateway settings? Incorrect gateway settings would prevent internet access, which the user has.
Why not SVI is assigned to the wrong IP address? A Switch Virtual Interface (SVI) with an incorrect IP address affects inter-VLAN routing, but this would likely impact multiple users, not just one.
Reference:CompTIA Network+ N10-009 Objective 2.2: Explain the purpose of network segmentation and VLAN configuration. The CompTIA Network+ Study Guide (e.g., Chapter 6: Switching) explains that VLANs isolate traffic, and incorrect VLAN assignments prevent access to resources on other VLANs.


NEW QUESTION # 489
A network analyst is installing a wireless network in a corporate environment. Employees are required to use their domain identities and credentials to authenticate and connect to the WLAN. Which of the following actions should the analyst perform on the AP to fulfill the requirements?

Answer: A

Explanation:
WPA3-Enterprise provides strong security and supports authentication using domain identities through a RADIUS server and 802.1X authentication. This is the best choice for a corporate environment requiring user- based authentication.
WPA3-Enterprise Benefits:
Uses 802.1X with EAP (Extensible Authentication Protocol) to authenticate users via a directory service (e.g., Active Directory).
Eliminates shared passwords (PSK) for authentication.
Provides strong encryption and resistance to brute-force attacks.
Incorrect Options:
A: Enable MAC Security:
MAC filtering is not secure because MAC addresses can be spoofed.
B: Generate a PSK for Each User:
Pre-shared keys (PSK) are used in WPA-Personal, not in an enterprise setting.
Does not scale well in corporate environments.
C: Implement WPS:
Wi-Fi Protected Setup (WPS) is a vulnerable security method meant for home users.
Not suitable for enterprise authentication.
Reference:
CompTIA Network+ N10-009 Official Study Guide - Chapter on Wireless Security and Authentication


NEW QUESTION # 490
......

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