N10-008 practice questions 241–250

1. Question 241 · 871 in bank

   An employee reports to a network administrator that internet access is not working. Which of the following should the administrator do FIRST?

   • AEstablish a theory of probable cause.
   • BIdentify symptoms.
   • CDetermine if anything has changed.
   • DAsk the user to restart the computer.

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   Answer: C

   Explanation

   BROTHERS..... HEAR THEEEE. ITS LITERALLY on comptia website. Comptia.ORG. HERE https://www.comptia.org/blog/troubleshooting-methodology Specific steps here may include: Gathering information from log files and error messages Questioning users Identifying symptoms Determining recent changes Duplicating the problem Approaching multiple problems one at a time Narrowing the scope of the problem ITS RIGHT THERE. U ask the users first before identify symptoms. HOW ARE PEOPLE PUTTING B. the correct answer is C

   Source: Adapted from community discussion — StellarSteve

   References

   • comptia.org documentation

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2. Question 242 · 871 in bank

   A security engineer is installing a new IDS on the network. The engineer has asked a network administrator to ensure all traffic entering and leaving the router interface is available for the IDS. Which of the following should the network administrator do?

   • AInstall a network tap for the IDS.
   • BConfigure ACLs to route traffic to the IDS.
   • CInstall an additional NIC into the IDS.
   • DInstall a loopback adapter for the IDS.
   • EAdd an additional route on the router for the IDS.

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   Answer: A

   Explanation

   I do think A is the best out of the options...feel free to correct me if I'm wrong. Mike Meyers "EXAM TIP Port mirroring isn’t the only way to duplicate network traffic for monitoring and troubleshooting. You can also use a standalone network tap. (Some sources use TAP as an acronym for Traffic Access Port or Test Access Port.) These multi-port hardware devices literally copy 100% of the bits that they see—even errors—and send them out separate ports for monitoring. You’ll see them in scenarios that require non-obtrusive data collection." Some advantages of a tap over a mirrored port are that the tap will perform better under high load and won’t require you to give up scarce switch ports. Plus, they’re invisible to detection, because they have no MAC address or IP address." "An IDS is out-of-band and simply gets copies of network traffic. It can be as simple as a system getting copies of traffic to inspect, through a switch configured to send all traffic to the IDS. Since the IDS is out-of-band, it doesn’t add latency."

   Source: Adapted from community discussion — LeonardSnart

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3. Question 243 · 871 in bank

   An employee working in a warehouse facility is experiencing interruptions in mobile applications while walking around the facility. According to a recent site survey, the WLAN comprises autonomous APs that are directly connected to the internet, providing adequate signal coverage. Which of the following is the BEST solution to improve network stability?

   • AImplement client roaming using an extended service deployment employing a wireless controller.
   • BRemove omnidirectional antennas and adopt a directional bridge.
   • CEnsure all APs of the warehouse support MIMO and Wi-Fi 4.
   • DVerify that the level of EIRP power settings is set to the maximum permitted by regulations.

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   Answer: A

   Explanation

   A The best solution to improve network stability in this scenario would be to implement client roaming using an extended service deployment employing a wireless controller (option A). Client roaming refers to the ability of a wireless device to seamlessly connect to a different access point (AP) as the user moves around the facility. This can help to improve network stability and reduce interruptions in mobile applications. An extended service deployment is a type of wireless network configuration that uses multiple APs to cover a large area, such as a warehouse facility. By using a wireless controller to manage the APs, the network can be better optimized for client roaming, which can improve network stability.

   Source: Adapted from community discussion — JakeCharles

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4. Question 244 · 871 in bank

   Which of the following will reduce routing table lookups by performing packet forwarding decisions independently of the network layer header?

   • AMPLS
   • BmGRE
   • CEIGRP
   • DVRRP

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   Answer: A

   Explanation

   A MPLS is a networking technology that allows data packets to be forwarded based on short path labels rather than long network addresses. This reduces the need for routing table lookups, as the packet forwarding decisions can be made independently of the network layer header. mGRE (Multipoint Generic Routing Encapsulation) is a tunneling protocol that allows multiple remote devices to be connected to a single virtual private network (VPN). It does not reduce routing table lookups. EIGRP (Enhanced Interior Gateway Routing Protocol) is a routing protocol used to exchange routing information between devices within a single autonomous system (AS). It does not reduce routing table lookups. VRRP (Virtual Router Redundancy Protocol) is a protocol used to provide network failover and redundancy. It does not reduce routing table lookups.

   Source: Adapted from community discussion — JakeCharles

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5. Question 245 · 871 in bank

   While walking from the parking lot to an access-controlled door, an employee sees an authorized user open the door. Then the employee notices that another person catches the door before it closes and goes inside. Which of the following attacks is taking place?

   • ATailgating
   • BPiggybacking
   • CShoulder surfing
   • DPhishing

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   Answer: A

   Explanation

   The difference between piggybacking and tailgaiting is that with piggybacking, the person is willfully and intentionally letting you in. In this particular case, the person caught the door before it closed, so it is tailgating.

   Source: Adapted from community discussion — AustinKelleyNet

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6. Question 246 · 871 in bank

   Which of the following is the physical topology for an Ethernet LAN?

   • ABus
   • BRing
   • CMesh
   • DStar

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   Answer: D

   Explanation

   This is a bad question. Star is the answer just because its the most common. All the others are valid, but star is the BEST answer. The question should be reworded to provide clarity with that they are asking,

   Source: Adapted from community discussion — TheFivePips

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7. Question 247 · 871 in bank

   Given the following information:

   

   Which of the following would cause performance degradation between PC A and PC B?

   • AAttenuation
   • BInterference
   • CDecibel loss
   • DIncorrect pinout

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   Answer: A

   Explanation

   Correct me if I am wrong. But from my understanding, since majority of Cat cables, especially a Cat 5 cable only has a max length of 100m, since this cable in PC A to switch 1 exceeds that length, wouldn't attenuation be the cause of performance degradation? dB loss or gain shouldn't CAUSE a problem, that's more of a metric than an actual problem.

   Source: Adapted from community discussion — Xigema

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8. Question 248 · 871 in bank

   An engineer recently decided to upgrade the firmware on a router. During the upgrade, the help desk received calls about a network outage, and a critical ticket was opened. The network manager would like to create a policy to prevent this from happening in the future. Which of the following documents should the manager create?

   • AChange management
   • BIncident response
   • CStandard operating procedure
   • DSystem life cycle

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   Answer: A

   Explanation

   ChatGPT: The network manager would like to prevent a similar network outage from occurring in the future, which indicates a need for preventive measures. The incident has already occurred, so an incident response plan may not be sufficient on its own to prevent future incidents. A system life cycle document outlines the various stages of a system's development, and while it may include a section on upgrades, it may not provide specific guidance on how to prevent network outages during upgrades. Therefore, the best answer is A. Change management. Change management policies outline procedures for making changes to IT infrastructure, such as upgrades, to minimize disruptions and ensure that changes are implemented in a controlled and consistent manner. By creating a change management policy, the network manager can establish procedures for upgrading firmware and other changes, which can help prevent network outages and minimize their impact on users.

   Source: Adapted from community discussion — Dg04463

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9. Question 249 · 871 in bank

   A technician is deploying a new SSID for an industrial control system. The control devices require the network to use encryption that employs TKIP and a symmetrical password to connect. Which of the following should the technician configure to ensure compatibility with the control devices?

   • AWPA2-Enterprise
   • BWPA-Enterprise
   • CWPA-PSK
   • DWPA2-PSK

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   Answer: C

   Explanation

   WPA uses TKIP, WPA2 uses AES for encryption Anthony Sequeira "WPA uses Temporal Key Integrity Protocol (TKIP) for enhanced encryption. TKIP uses RC4 for the encryption algorithm, and the CompTIA Network+ exam may reference TKIP-RC4 in a discussion of wireless." " WPA2 uses Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP) for integrity checking and Advanced Encryption Standard (AES) for encryption. On the Network+ exam, you might find this referenced as simply CCMP-AES"

   Source: Adapted from community discussion — LeonardSnart

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10. Question 250 · 871 in bank

    Which of the following ports should be used to securely receive mail that is synchronized across multiple devices?

    • A25
    • B110
    • C443
    • D993

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    Answer: D

    Explanation

    Yes, and mail is transported via SMTP, but downloaded to a client device via POP or IMAP. From this list, only IMAPS is encrypted.

    Source: Adapted from community discussion — Jakub2023

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N10-008 practice, question 241. 871 questions available.