N10-009 practice questions 241–250

1. Question 241 · 610 in bank

   A network administrator is troubleshooting an application issue after a firewall change. The administrator has confirmed that the port and protocol are accessible to the user, but the application is still having issues. Which of the following tools allows the administrator to look at traffic on the application layer of the OSI model?

   • Aifconfig
   • Btcpdump
   • Cnslookup
   • Dtraceroute

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   Answer: B

   Explanation

   B is correct. For example, you could see the contents of a DNS query and response, which are both at the Application Layer

   Source: Adapted from community discussion — chrys

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2. Question 242 · 610 in bank

   Which of the following steps of the troubleshooting methodology would most likely include checking through each level of the OSI model after the problem has been identified?

   • AEstablish a theory.
   • BImplement the solution.
   • CCreate a plan of action.
   • DVerify functionality.

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   Answer: A

   Explanation

   I just passed N10-009 this past weekend, 11.9.24 using these questions. I studied the 159 questions and they were a lifesaver. I also got all 6 scenario questions, the first one was very complicated and I gave up and moved on. I saved the scenarios for last and they took 50 min to go through. Study all 159 questions the answers given. It's worth it. I got a 836 for my score even not doing well with a couple of the scenario questions!!

   Source: Adapted from community discussion — a484b2b

   References

   • comptia.org documentation

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3. Question 243 · 610 in bank

   Which of the following ports should a network administrator enable for encrypted log-in to a network switch?

   • A22
   • B23
   • C80
   • D123

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   Answer: A

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4. Question 244 · 610 in bank

   Which of the following is used to stage copies of a website closer to geographically dispersed users?

   • AVPN
   • BCDN
   • CSAN
   • DSDN

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   Answer: B

   Explanation

   The correct answer is: B. CDN (Content Delivery Network) Explanation: A Content Delivery Network (CDN) is used to stage copies of a website or its content closer to geographically dispersed users. It works by caching website resources (e.g., images, videos, scripts, and HTML pages) on servers located in various geographical locations. This reduces latency, improves load times, and enhances the user experience by delivering content from a server that is physically closer to the user.

   Source: Adapted from community discussion — SuntzuLegacy

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5. Question 245 · 610 in bank

   Which of the following appliances provides users with an extended footprint that allows connections from multiple devices within a designated WLAN?

   • ARouter
   • BSwitch
   • CAccess point
   • DFirewall

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   Answer: C

   Explanation

   The correct answer is: C. Access point Explanation: An access point (AP) is a networking device that allows multiple devices to connect to a wireless local area network (WLAN). It extends the network footprint by broadcasting a Wi-Fi signal, enabling devices like laptops, smartphones, and IoT devices to connect wirelessly within its coverage area.

   Source: Adapted from community discussion — SuntzuLegacy

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6. Question 246 · 610 in bank

   An administrator is configuring a switch that will be placed in an area of the office that is accessible to customers. Which of the following is the best way for the administrator to mitigate unknown devices from connecting to the network?

   • ASSE
   • BACL
   • CPerimeter network
   • D802.1X

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   Answer: D

   Explanation

   The correct answer is: D. 802.1X Explanation: 802.1X is a network access control protocol that provides port-based authentication for devices attempting to connect to a network. It ensures that only authorized devices and users can access the network by requiring authentication before granting access. This is particularly useful for mitigating the risk of unknown devices connecting to a switch in a public or semi-public area.

   Source: Adapted from community discussion — SuntzuLegacy

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7. Question 247 · 610 in bank

   Which of the following diagrams would most likely include specifications about fiber connector types?

   • ALogical
   • BPhysical
   • CRack
   • DRouting

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   Answer: B

   Explanation

   The correct answer is: B. Physical Explanation: A physical diagram represents the actual physical layout of a network, including the types of cables, connectors, and devices used. This type of diagram would most likely include details about fiber connector types (e.g., LC, SC, ST) because it specifies how network components are physically connected.

   Source: Adapted from community discussion — SuntzuLegacy

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8. Question 248 · 610 in bank

   Which of the following is the most likely reason an insurance brokerage would enforce VPN usage?

   • ATo encrypt sensitive data in transit
   • BTo secure the endpoints
   • CTo maintain contractual agreements
   • DTo comply with data retention requirements

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   Answer: A

   Explanation

   The correct answer is: A. To encrypt sensitive data in transit Explanation: An insurance brokerage is likely to handle a significant amount of sensitive data, such as personal identifiable information (PII), financial records, and health-related information. Using a VPN (Virtual Private Network) ensures that all data transmitted between endpoints (e.g., employee devices and company systems) is encrypted, protecting it from interception by unauthorized parties during transit, especially over untrusted networks like public Wi-Fi.

   Source: Adapted from community discussion — SuntzuLegacy

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9. Question 249 · 610 in bank

   An organization moved its DNS servers to new IP addresses. After this move, customers are no longer able to access the organization's website. Which of the following DNS entries should be updated?

   • AAAA
   • BCNAME
   • CMX
   • DNS

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   Answer: D

   Explanation

   The correct answer is: D. NS (Name Server) Explanation: The NS (Name Server) record specifies which DNS servers are authoritative for a domain. If the organization has moved its DNS servers to new IP addresses, the NS records need to be updated to point to the new name servers. This ensures that DNS queries for the domain are directed to the correct authoritative servers.

   Source: Adapted from community discussion — SuntzuLegacy

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10. Question 250 · 610 in bank

    Select 2

    Which of the following are environmental factors that should be considered when installing equipment in a building? (Choose two.)

    • AFire suppression system
    • BUPS location
    • CHumidity control
    • DPower load
    • EFloor construction type
    • FProximity to nearest MDF

    Show answer

    Answer: AC

    Explanation

    A. Fire suppression system C. Humidity control Explanation: A. Fire suppression system: This is crucial for ensuring the safety of the equipment and personnel. A proper fire suppression system can help protect against potential fire hazards that could damage the equipment. C. Humidity control: Maintaining appropriate humidity levels is essential for preventing damage to electronic equipment. Excess humidity can lead to corrosion, while low humidity can cause static electricity issues.

    Source: Adapted from community discussion — ojones888

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N10-009 practice, question 241. 610 questions available.