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많은 시간과 돈이 필요 없습니다. 30분이란 특별학습가이드로 여러분은CompTIA N10-009인증시험을 한번에 통과할 수 있습니다, Pass4Test에서CompTIA N10-009시험자료의 문제와 답이 실제시험의 문제와 답과 아주 비슷한 덤프만 제공합니다.
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>> CompTIA N10-009인증덤프샘플 다운 <<
인재도 많고 경쟁도 많은 이 사회에, 업계인재들은 인기가 아주 많습니다.하지만 팽팽한 경쟁률도 무시할 수 없습니다.많은 CompTIA인재들도 어려운 인증시험을 패스하여 자기만의 자리를 지키고 있습니다.우리Pass4Test에서는 마침 전문적으로 이러한 CompTIA인사들에게 편리하게 시험을 N10-009패스할수 있도록 유용한 자료들을 제공하고 있습니다.
질문 # 494
A laptop user gets an error when trying to access the company ' s intranet site. A technician runs ipconfig /all with the following results:
Autoconfiguration IPv4 Address: 169.254.0.5 (Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . :
Which of the following is most likely causing the issue?
정답：A
설명：
The giveaway here is the 169.254.x.x address. That is an APIPA address, which Windows assigns to itself when it asks for an IP address from DHCP and does not get one. Since there is also no default gateway and no DHCP server listed, the laptop clearly failed to obtain normal network settings.
Out of the choices, address pool exhaustion makes the most sense. If the DHCP scope has run out of available addresses, the client cannot lease one, so it falls back to an automatic private address. At that point, the device may still think its network adapter is working, but it will not be able to reach internal resources like the company intranet because it does not have valid Layer 3 settings for that network.
The other answers do not fit the output. A short lease duration could cause frequent renewals, but it would not normally explain an APIPA address by itself. An IIS problem would affect the web server, not the client's local IP configuration. An IDS issue also would not cause the workstation to self-assign 169.254.0.5. This is a DHCP addressing problem, and the best answer is C .
질문 # 495
Some newly installed wireless APs are not broadcasting. Which of the following is the most likely cause of the issue?
정답：D
설명：
Wireless APs commonly rely on Power over Ethernet for power. If the switch's PoE budget is exceeded, some APs may not power on fully or at all, preventing them from broadcasting wireless networks.
질문 # 496
A technician is troubleshooting wireless connectivity near a break room. Whenever a user turns on the microwave, connectivity to the user's laptop is lost. Which of the following frequency bands is the laptop most likely using?
정답：B
설명：
The laptop is most likely using the 2.4GHz frequency band. According to the CompTIA Network+ N10-009 objectives, the 2.4GHz band is particularly susceptible to electromagnetic interference (EMI) from common household and office devices, including microwave ovens, cordless phones, Bluetooth devices, and baby monitors. Microwave ovens operate at approximately 2.45GHz, which overlaps directly with the 2.4GHz Wi- Fi spectrum. When the microwave is powered on, it emits interference that can significantly degrade or completely disrupt nearby wireless communications operating in this band.
The 5GHz and 6GHz bands operate at much higher frequencies and do not overlap with microwave emissions, making them far less prone to this type of interference. While higher-frequency bands have shorter range and lower wall penetration, they provide cleaner channels and improved performance in dense environments. The 900MHz band is not used by standard Wi-Fi networks defined in the Network+ objectives and is more commonly associated with legacy cordless phones and certain IoT or proprietary wireless technologies.
Network+ troubleshooting guidance emphasizes identifying environmental interference sources when diagnosing intermittent wireless connectivity. A common mitigation strategy is to migrate affected devices to the 5GHz or 6GHz bands or reposition access points away from interference sources like break room appliances.
질문 # 497
A network engineer is configuring network ports in a public office. To increase security, the engineer wants the ports to allow network connections only after authentication. Which of the following security features should the engineer use?
정답：D
설명：
802.1X provides port-based Network Access Control (NAC). Ports remain in a blocked state until a device authenticates (usually with RADIUS). This is ideal for public or semi-public areas where ports should not be
"always on."
A). Port security restricts by MAC addresses but does not authenticate users.
C). MAC filtering is easily spoofed and weaker than 802.1X.
D). ACLs filter traffic but do not enforce port-based authentication.
References (CompTIA Network+ N10-009):
Domain: Network Security - NAC, 802.1X authentication, port-based security.
질문 # 498
A network administrator is conducting an assessment and finds network devices that do not meet standards. Which of the following configurations is considered a set of rules that devices should adhere to?
정답：B
설명：
The correct answer is golden configuration. This is a Reference: standard or baseline that defines the approved settings and rules devices should follow. Any deviation from the golden configuration indicates drift or misconfiguration that must be remediated.
A . Production refers to the live environment but doesn't define a standard.
B . Backup configurations are stored copies, not the standard rules.
C . Candidate configuration is a proposed change being tested, not the final baseline.
By enforcing golden configurations, administrators ensure compliance, maintain security standards, and improve consistency across the enterprise.
질문 # 499
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