N10-008 practice questions 181–190

1. Question 181 · 871 in bank

   A technician removes an old PC from the network and replaces it with a new PC that is unable to connect to the LAN. Which of the following is MOST likely the cause of the issue?

   • APort security
   • BPort tagging
   • CPort aggregation
   • DPort mirroring

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   Answer: A

   Explanation

   The most likely cause of the issue is port security. When a new device is connected to a network, port security can prevent the device from connecting if it is not authorized. The old PC might have been authorized to connect, but the new PC is not. To resolve the issue, the technician will need to configure port security to allow the new PC to connect.

   Source: Adapted from community discussion — StellarSteve

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2. Question 182 · 871 in bank

   A medical building offers patients Wi-Fi in the waiting room. Which of the following security features would be the BEST solution to provide secure connections and keep the medical data protected?

   • AIsolating the guest network
   • BSecuring SNMP
   • CMAC filtering
   • DDisabling unneeded switchports

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   Answer: A

   Explanation

   The best solution for providing secure connections and protecting medical data in a medical building's waiting room would be to isolate the guest network. This means that the guest Wi-Fi network would be separate from the internal network, and there would be no communication between the two networks. This would help to prevent unauthorized access to the internal network and protect medical data. Other options, such as securing SNMP, MAC filtering, and disabling unneeded switchports, may also help to improve security, but they would not provide the same level of protection as isolating the guest network.

   Source: Adapted from community discussion — JakeCharles

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3. Question 183 · 871 in bank

   An administrator notices that after contact with several switches in an MDF they failed due to electrostatic discharge. Which of the following sensors should the administrator deploy to BEST monitor static electricity conditions in the MDF?

   • ATemperature
   • BHumidity
   • CSmoke
   • DElectrical

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   Answer: B

   Explanation

   I worked in a large data center for 8 years. Our electrical sensors were on the PDUs and concerned with monitoring power levels, not ESD. Our humidity sensors would alarm when overall humidity was too high (cause condensation which could cause water damage to equipment) or too low (cause electrostatic discharge). The only answer that makes sense is B.

   Source: Adapted from community discussion — Cyali

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4. Question 184 · 871 in bank

   A network administrator is reviewing the network device logs on a syslog server. The messages are normal, but the time stamps on the messages are incorrect. Which of the following actions should the administrator take to ensure the log message time stamps are correct?

   • AChange the NTP settings on the network device.
   • BChange the time on the syslog server.
   • CUpdate the network device firmware.
   • DAdjust the timeout settings on the syslog server.
   • EAdjust the SSH settings on the network device.

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   Answer: A

   Explanation

   A. Change the NTP settings on the network device. NTP (Network Time Protocol) is used to synchronize the time on network devices. If the time stamps on the syslog server are incorrect, it is likely that the NTP settings on the network device are incorrect. By updating the NTP settings on the network device, the time stamps on the syslog server will be corrected.

   Source: Adapted from community discussion — StellarSteve

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5. Question 185 · 871 in bank

   Select 2

   Two network technicians are installing a fiber-optic link between routers. The technicians used a light meter to verify the correct fibers. However, when they connect the fibers to the router interface, the link does not connect. Which of the following would explain the issue? (Choose two.)

   • AThey used the wrong type of fiber transceiver.
   • BIncorrect TX/RX polarity exists on the link.
   • CThe connection has duplexing configuration issues.
   • DHalogen light fixtures are causing interference.
   • EOne of the technicians installed a loopback adapter.
   • FThe RSSI was not strong enough on the link.

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   Answer: AB

   Explanation

   I am here to shed some light, chatGPT's response: A. They used the wrong type of fiber transceiver. B. Incorrect TX/RX polarity exists on the link. These are the two possibilities that can explain the issue. If the technicians used the wrong type of fiber transceiver, the signal may not be transmitted and received properly, which could prevent the link from connecting. Additionally, if the TX/RX polarity is incorrect, the signal may not be transmitted and received properly, causing the link to fail.

   Source: Adapted from community discussion — FreePrivacy

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6. Question 186 · 871 in bank

   Which of the following protocols would enable a company to upgrade its internet connection by acquiring its own public IP prefixes and autonomous system number?

   • AEIGRP
   • BBGP
   • CIPv6
   • DMPLS

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   Answer: B

   Explanation

   Public BGP routing prefixes must be registered. There is no requirement anywhere to register EIGRP AS numbers, since it is an Interior Gateway Protocol (IGP) like RIP and OSPF.

   Source: Adapted from community discussion — A_CCSI

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7. Question 187 · 871 in bank

   A network technician is performing tests on a potentially faulty network card that is installed in a server. Which of the following addresses will MOST likely be used during traffic diagnostic tests?

   • A10.10.10.10
   • B127.0.0.1
   • C192.168.0.1
   • D255.255.255.0

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   Answer: B

   Explanation

   The address that will MOST likely be used during traffic diagnostic tests is B. 127.0.0.1. This is the loopback address, which is used to test the network interface of a device. When a device sends a packet to the loopback address, it will receive the packet back, allowing the technician to test whether the network interface is functioning properly. Answer C, 192.168.0.1, is the default IP address for many home routers. While it is possible that this address could be used for diagnostic testing, it is not the most likely choice. The loopback address, B. 127.0.0.1, is a more common choice for testing the network interface of a device because it allows the device to send and receive packets without the need for any external networking equipment.

   Source: Adapted from community discussion — JakeCharles

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8. Question 188 · 871 in bank

   An administrator would like to create a fault-tolerant ring between three switches within a Layer 2 network. Which of the following Ethernet features should the administrator employ?

   • ASpanning Tree Protocol
   • BOpen Shortest Path First
   • CPort mirroring
   • DAn interior gateway protocol

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   Answer: A

   Explanation

   In a network with redundant paths (which are common for fault tolerance and redundancy purposes), STP determines which paths should be active and which should be in a blocking state to prevent loops. If a link or switch fails, STP recalculates the topology to activate a previously blocked path, thus maintaining network connectivity even in the presence of failures. Open Shortest Path First (B) and An interior gateway protocol (D) are routing protocols used in Layer 3 networks, and they are not typically used to create fault-tolerant rings in Layer 2 networks. Port mirroring (C) is used for network monitoring and analysis, not for creating fault-tolerant rings.

   Source: Adapted from community discussion — TheFivePips

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9. Question 189 · 871 in bank

   During a risk assessment, which of the following should be considered when planning to mitigate high CPU utilization of a firewall?

   • ARecovery time objective
   • BUninterruptible power supply
   • CNIC teaming
   • DLoad balancing

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   Answer: D

   Explanation

   This has to be D. The recovery time objective (RTO) is the maximum tolerable length of time that a computer, system, network or application can be down after a failure or disaster occurs. This does nothing to help with CPU utilization. Load balancing does this.

   Source: Adapted from community discussion — chael88

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10. Question 190 · 871 in bank

    Given the following information:

    

    Which of the following command-line tools would generate this output?

    • Anetstat
    • Barp
    • Cdig
    • Dtracert

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    Answer: A

    Explanation

    - The "netstat" command displays network connections, routing tables, and network interface statistics. - The "dig" (Domain Information Groper) command is used for querying the Domain Name System (DNS) to obtain domain name or IP address mapping. -The "arp" (Address Resolution Protocol) command is used to view and manage the ARP cache, which contains mapping information between IP addresses and their corresponding physical (MAC) addresses on a network. - The "tracert" (or traceroute) command is used to determine the path that packets take from the source device to the destination device on an IP network

    Source: Adapted from community discussion — StevenElev11n

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N10-008 practice, question 181. 871 questions available.