N10-008 practice questions 321–330

1. Question 321 · 871 in bank

   A WAN technician reviews activity and identifies newly installed hardware that is causing outages over an eight-hour period. Which of the following should be considered FIRST?

   • ANetwork performance baselines
   • BVLAN assignments
   • CRouting table
   • DDevice configuration review

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   Answer: D

   Explanation

   If having outages after installing new hardware. If you have options for checking performance baselines, or the configuration review document first, it will be faster to check the configuration review first. Configuration review identifies the weaknesses, threats and vulnerabilities in the network devices and resources, by allocating the threat rating to each of the configuration so that appropriate controls may be applied to reach the higher level of security. https://www.linkedin.com/pulse/importance-configuration-review-graxoconsulting#:~:text=Configuration%20review%20identifies%20the%20weaknesses,the%20higher%20level%20of%20security.

   Source: Adapted from community discussion — Mehsotopes

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2. Question 322 · 871 in bank

   Which of the following would enable a network technician to implement dynamic routing?

   • AAn IPS
   • BA bridge
   • CA Layer 3 switch
   • DA hub

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   Answer: C

   Explanation

   Layer 3 switches are equipped with the necessary intelligence to run dynamic routing protocols such as OSPF (Open Shortest Path First), RIP (Routing Information Protocol), or EIGRP (Enhanced Interior Gateway Routing Protocol). They can make decisions on how to forward packets based on the information gathered from these dynamic routing protocols.

   Source: Adapted from community discussion — IckyNicky

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3. Question 323 · 871 in bank

   A branch of a company recently switched to a new ISP. The network engineer was given a new IP range to assign. The ISP assigned 196.26.4.0/26, and the branch gateway router now has the following configurations on the interface that peers to the ISP:

   

   The network engineer observes that all users have lost Internet connectivity. Which of the following describes the issue?

   • AThe incorrect subnet mask was configured
   • BThe incorrect gateway was configured
   • CThe incorrect IP address was configured
   • DThe incorrect interface was configured

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   Answer: B

   Explanation

   Gateway is the correct answer. XX.XX.4.1 and XX.XX.4.30 will still be in the subnet when the mask is set to 255.255.255.224 (/27)

   Source: Adapted from community discussion — Tyrial

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4. Question 324 · 871 in bank

   Which of the following would be BEST suited for a long cable run with a 40Gbps bandwidth?

   • ACat 5e
   • BCat 6a
   • CCat 7
   • DCat 8

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   Answer: D

   Explanation

   For a long cable run with a 40Gbps bandwidth, the BEST option would be Cat 8 cable. Cat 8 is designed to support up to 40Gbps over a distance of up to 30 meters, making it the most suitable option for long cable runs with high bandwidth requirements.

   Source: Adapted from community discussion — StellarSteve

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5. Question 325 · 871 in bank

   Which of the following is a valid and cost-effective solution to connect a fiber cable into a network switch without available SFP ports?

   • AUse a media converter and a UTP cable
   • BInstall an additional transceiver module and use GBICs
   • CChange the type of connector from SC to F-type
   • DUse a loopback adapter to make the connection

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   Answer: A

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6. Question 326 · 871 in bank

   A network device needs to discover a server that can provide it with an IPv4 address. Which of the following does the device need to send the request to?

   • ADefault gateway
   • BBroadcast address
   • CUnicast address
   • DLink local address

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   Answer: B

   Explanation

   So many wrong answers on here. The DHCP client sends broadcast request packets to the network; the DHCP servers respond with broadcast packets that offer IP parameters, such as an IP address for the client. After the client chooses the IP parameters, communication between the client and server is by unicast packets

   Source: Adapted from community discussion — [Removed]

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7. Question 327 · 871 in bank

   Which of the following is an example of on-demand scalable hardware that is typically housed in the vendor's data center?

   • ADaaS
   • BIaaS
   • CPaaS
   • DSaaS

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   Answer: B

   Explanation

   IaaS (Infrastructure as a Service) is an example of on-demand scalable hardware that is typically housed in the vendor's data center. IaaS provides virtualized computing resources over the internet, including virtual machines, storage, and networking infrastructure. The resources are typically hosted in the vendor's data center and can be quickly provisioned or de-provisioned to meet changing business needs.

   Source: Adapted from community discussion — StellarSteve

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8. Question 328 · 871 in bank

   A network security engineer locates an unapproved wireless bridge connected to the corporate LAN that is broadcasting a hidden SSID, providing unauthenticated access to internal resources. Which of the following types of attacks BEST describes this finding?

   • ARogue access point
   • BEvil twin
   • CARP spoofing
   • DVLAN hopping

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   Answer: A

   Explanation

   A rogue access point is an illegitimate access point plugged into a network to create a bypass from outside into the legitimate network. By contrast, an evil twin is a copy of a legitimate access point.

   Source: Adapted from community discussion — marmarhar1980

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9. Question 329 · 871 in bank

   While setting up a new workstation, a technician discovers that the network connection is only 100 full duplex (FD), although it is connected to a gigabit switch. While reviewing the interface information in the switch CLI, the technician notes the port is operating at 100FD but shows many RX and TX errors. The technician moves the computer to another switchport and experiences the same issues. Which of the following is MOST likely the cause of the low data rate and port errors?

   • ABad switchports
   • BFaulty drivers
   • CCable length
   • DIncorrect pin-out

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   Answer: D

   Explanation

   A. Bad switchports - unlikely that multiple switchports are bad. sure it's possible, but occam's razor - one of the other answers is more likely B. Faulty drivers - faulty drivers would likely create bigger issues than tx/rx errors C. Cable length - would cause CRC errors, not tx/rx D. Incorrect pin-out - the only answer that really makes sense here; if the pinout is incorrect on the cable, it doesn't matter where you plug it in, you're gonna get tx/rx errors

   Source: Adapted from community discussion — Cyali

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10. Question 330 · 871 in bank

    A technician is contracted to install a redundant cluster of devices from the ISP in case of hardware failure within the network. Which of the following would provide BEST redundant solution in Layer 2 devices?

    • AMultiple routers
    • BMultiple switches
    • CMultiple firewalls
    • DMultiple bridges

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    Answer: B

    Explanation

    Multiple switches are good to act as a cluster of redundant networking devices to connect other devices from MDF to IDFs & provide failover redundancy, routers work to connect different IDFs between each other & the MDF. Firewalls add port security between connected devices & a bridge would create a link between separate clusters.

    Source: Adapted from community discussion — Mehsotopes

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N10-008 practice, question 321. 871 questions available.