N10-009 practice questions 261–270

1. Question 261 · 610 in bank

   After running a Cat 8 cable using passthrough plugs, an electrician notices that connected cables are experiencing a lot of cross talk. Which of the following troubleshooting steps should the electrician take first?

   • AInspect the connectors for any wires that are touching or exposed.
   • BRestore default settings on the connected devices.
   • CTerminate the connections again.
   • DCheck for radio frequency interference in the area.

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   Answer: A

   Explanation

   The correct answer is: A. Inspect the connectors for any wires that are touching or exposed. Explanation: When experiencing cross-talk with a Cat 8 cable, one of the most common causes is improper termination, especially when using passthrough plugs. Improperly aligned or exposed wires can lead to signal interference and cross-talk. By visually inspecting the connectors, the electrician can identify if wires are incorrectly aligned, exposed, or not fully inserted into the connector.

   Source: Adapted from community discussion — SuntzuLegacy

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2. Question 262 · 610 in bank

   A technician is troubleshooting a user's laptop that is unable to connect to a corporate server. The technician thinks the issue pertains to routing. Which of the following commands should the technician use to identify the issue?

   • Atcpdump
   • Bdig
   • Ctracert
   • Darp

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   Answer: C

   Explanation

   The correct answer is: C. tracert Explanation: The tracert (on Windows) or traceroute (on Linux/Unix) command is used to trace the path packets take to reach a destination server. It identifies all the hops (routers) along the route and displays the time taken for each hop. This helps pinpoint where the routing issue might be occurring, such as a misconfigured router or a dead route.

   Source: Adapted from community discussion — SuntzuLegacy

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3. Question 263 · 610 in bank

   After installing a series of Cat 8 keystones, a data center architect notices higher than normal interference during tests. Which of the following steps should the architect take to troubleshoot the issue?

   • ACheck to see if the end connections were wrapped in copper tape before terminating.
   • BUse passthrough modular crimping plugs instead of traditional crimping plugs.
   • CConnect the RX/TX wires to different pins.
   • DRun a speed test on a device that can only achieve 100Mbps speeds.

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   Answer: A

   Explanation

   The correct answer is: A. Check to see if the end connections were wrapped in copper tape before terminating. Explanation: Cat 8 cables are designed for high-speed data transmission in data centers and have stringent requirements to minimize interference and maintain shielding integrity. One critical aspect of Cat 8 installation is ensuring that the shielding (often foil or braided) remains continuous and properly grounded, especially at termination points. Wrapping the end connections in copper tape before termination ensures proper contact with the keystone jack, maintaining the shield's effectiveness and minimizing interference.

   Source: Adapted from community discussion — SuntzuLegacy

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4. Question 264 · 610 in bank

   A small business is deploying new phones, and some of the phones have full HD videoconferencing features. The Chief Information Officer is concerned that the network might not be able to handle the traffic if the traffic reaches a certain threshold. Which of the following can the network engineer configure to help ease these concerns?

   • AA VLAN with 100Mbps speed limits
   • BAn IP helper to direct VoIP traffic
   • CA smaller subnet mask
   • DFull duplex on all user ports

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   Answer: A

   Explanation

   A. A VLAN with 100Mbps speed limits. Explanation: Creating a VLAN specifically for the phones and configuring speed limits (such as 100Mbps) can help manage traffic and ensure that the network remains stable under high load conditions. VLANs segment traffic, which improves performance and reduces congestion by isolating specific types of traffic, such as VoIP and videoconferencing

   Source: Adapted from community discussion — HeatSquad77

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5. Question 265 · 610 in bank

   A network administrator needs to set up a file server to allow user access. The organization uses DHCP to assign IP addresses. Which of the following is the best solution for the administrator to set up?

   • AA separate scope for the file server using a /32 subnet
   • BA reservation for the server based on the MAC address
   • CA static IP address within the DHCP IP range
   • DA SLAAC for the server

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   Answer: B

   Explanation

   DHCP Reservation: A DHCP reservation allows the administrator to assign a specific IP address to the file server based on its MAC address. This means that the file server will always receive the same IP address from the DHCP server, ensuring stable and predictable access for users while still utilizing DHCP for address management.

   Source: Adapted from community discussion — BobbyCruz111

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6. Question 266 · 610 in bank

   A virtual machine has the following configuration: IPv4 address: 169.254.10.10 - Subnet mask: 255.255.0.0 - The virtual machine can reach collocated systems but cannot reach external addresses on the internet. Which of the following is most likely the root cause?

   • AThe subnet mask is incorrect.
   • BThe DHCP server is offline.
   • CThe IP address is an RFC1918 private address.
   • DThe DNS server is unreachable.

   Show answer

   Answer: B

   Explanation

   The correct answer is: B. The DHCP server is offline. Explanation: The IP address 169.254.10.10 is a Link-Local Address, which is automatically assigned when a device cannot obtain an IP address from a DHCP server. These addresses (ranging from 169.254.0.0 to 169.254.255.255) are part of the Automatic Private IP Addressing (APIPA) scheme and are only valid for communication within the same local subnet. Devices with APIPA addresses cannot communicate with external networks, including the internet.

   Source: Adapted from community discussion — SuntzuLegacy

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7. Question 267 · 610 in bank

   Which of the following is used to estimate the average life span of a device?

   • ARPO
   • BRTO
   • CMTTR
   • DMTBF

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   Answer: D

   Explanation

   D. MTBF (Mean Time Between Failures). Explanation: MTBF is a metric used to estimate the average time a device operates before experiencing a failure. It is commonly used to predict the reliability and expected lifespan of a device or system.

   Source: Adapted from community discussion — HeatSquad77

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8. Question 268 · 610 in bank

   Which of the following is the most secure way to provide site-to-site connectivity?

   • AVXLAN
   • BIKE
   • CGRE
   • DIPSec

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   Answer: D

   Explanation

   D. IPSec (Internet Protocol Security). Explanation: IPSec is the most secure option for providing site-to-site connectivity. It offers strong encryption and authentication, ensuring that data transmitted between sites is protected against eavesdropping and tampering. It is widely used in VPNs to secure communication over untrusted networks like the Internet

   Source: Adapted from community discussion — HeatSquad77

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9. Question 269 · 610 in bank

   A network technician is terminating a cable to a fiber patch panel in the MDF. Which of the following connector types is most likely in use?

   • AF-type
   • BRJ11
   • CBNC
   • DSC

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   Answer: D

   Explanation

   D. SC (Subscriber Connector). Explanation: SC connectors are commonly used for terminating fiber optic cables in data centers, MDFs (Main Distribution Frames), and other networking setups. They are push-pull connectors that provide secure connections and are widely used in fiber patch panels.

   Source: Adapted from community discussion — HeatSquad77

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10. Question 270 · 610 in bank

    A network administrator is connecting two Layer 2 switches in a network. These switches must transfer data in multiple networks. Which of the following would fulfill this requirement?

    • AJumbo frames
    • B802.1Q tagging
    • CNative VLAN
    • DLink aggregation

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    Answer: B

    Explanation

    The correct answer is: B. 802.1Q tagging Explanation: 802.1Q tagging is a standard for VLAN tagging on Ethernet frames, which allows Layer 2 switches to transfer data for multiple VLANs across a single trunk link. When switches are connected using 802.1Q tagging, they can handle traffic from different VLANs by adding a VLAN tag to each Ethernet frame. This ensures that data for multiple networks (VLANs) is properly identified and routed across the trunk connection.

    Source: Adapted from community discussion — SuntzuLegacy

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N10-009 practice, question 261. 610 questions available.