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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
  • Selection and configuration of wireless devices.
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.

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CompTIA Network+ Certification Exam Sample Questions (Q151-Q156):

NEW QUESTION # 151
A network administrator is configuring a new switch and wants to ensure that only assigned devices can connect to the switch. Which of the following should the administrator do?

Answer: C

Explanation:
Reference: CompTIA Network+ Certification Exam Objectives - Network Security section.


NEW QUESTION # 152
A network administrator is troubleshooting issues with aDHCP serverat a university. More students have recently arrived on campus, and the users areunable to obtain an IP address. Which of the following should the administrator do to address the issue?

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
The issue is thatmore students have arrived on campus, meaningthe available IP addresses are exhausted
. To fix this, the administrator shouldincrease the DHCP scope sizeto allow more devices to obtain IP addresses.
Breakdown of Options:
* A. Enable IP helper- IP helper is used to forward DHCP requests across different subnets. However, the problem here is thatthe DHCP scope is full, not that requests are not reaching the server.
* B. Change the subnet mask- The subnet mask determines the number of available hosts, butchanging it without increasing the IP pool does not help.
* C. Increase the scope size-Correct answer.Expanding the DHCP scope provides more IP addresses for assignment.
* D. Add address exclusions- ExclusionsreserveIP addresses, which would further reduce available addresses instead of solving the issue.


NEW QUESTION # 153
A network administrator needs a solution to isolate and potentially identify any threat actors that are attempting to breach the network. Which of the following should the administrator implement to determine the type of attack used?

Answer: C

Explanation:
A honeypot is specifically designed to attract, isolate, and observe malicious activity so defenders can learn how an attacker is operating and determine attack techniques. In the context of Network+ (N10-009) security objectives, honeypots (and broader deception technologies) are defensive controls used to detect reconnaissance and exploitation attempts by presenting a decoy system or service that appears legitimate.
Because a honeypot should not receive normal production traffic, any interaction is suspicious, making it valuable for identifying threat actors, collecting indicators of compromise, and analyzing the attacker's tools, commands, and behavior patterns. This supports the goal of understanding the type of attack used (for example, credential stuffing, exploitation attempts, lateral movement probes) while keeping the attacker away from real assets.
MFA strengthens authentication but does not provide a controlled environment to observe attacker techniques. A screened subnet (DMZ) is for segmentation of public-facing services and reducing exposure of internal systems, but it is not primarily used to "bait" and analyze attackers. A captive portal enforces user acknowledgement/authentication for network access; it is not a deception/analysis system. Therefore, honeypot is the best match.


NEW QUESTION # 154
Which of the following are environmental factors that should be considered when installing equipment in a building? (Select two).

Answer: A

Explanation:
When installing equipment in a building, environmental factors are critical to ensure the safety and longevity of the equipment. A fire suppression system is essential to protect the equipment from fire hazards. Humidity control is crucial to prevent moisture-related damage, such as corrosion and short circuits, which can adversely affect electronic components. Both factors are vital for maintaining an optimal environment for networking equipment.
Reference: CompTIA Network+ study materials.


NEW QUESTION # 155
A group of users cannot connect to network resources. The technician runs ipconfig from one user's device and is able to ping the gateway shown from the command. Which of the following is most likely preventing the users from accessing network resources?

Answer: B

Explanation:
A rogue DHCP server occurs when an unauthorized or misconfigured DHCP server assigns incorrect IP addresses, default gateways, or DNS settings to clients.
*In this scenario:
*The user can ping the gateway, meaning local network communication is working.
*However, they cannot access network resources, which suggests incorrect IP configuration (likely due to a rogue DHCP server assigning the wrong gateway or DNS).
*Why not the other options?
*VLAN hopping (A): This is an attack that exploits VLAN configurations to gain access to unauthorized VLANs. It would not typically cause multiple users to lose network access.
*Distributed DoS (C): A DDoS attack floods a network or service with traffic, but this issue is more likely misconfigured IP settings than an actual attack.
*Evil twin (D): This refers to a fraudulent Wi-Fi network mimicking a legitimate one. Since the users are on a wired network (ipconfig output checked), this is not applicable.
Reference:
CompTIA Network+ (N10-009) Official Guide - Chapter 11: Network Security Threats


NEW QUESTION # 156
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