N10-008 practice questions 851–860

1. Question 851 · 871 in bank

   A branch office is experiencing frequent power-related issues that are taking the network down dally. Which of the following would best address this network uptime issue?

   • AMPLS
   • BIPS
   • CPDU
   • DUPS
   • EHA firewalls

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   Answer: D

   Explanation

   D. UPS A UPS (Uninterruptible Power Supply) would best address the network uptime issue related to frequent power-related problems. A UPS provides backup power during outages and can protect against power fluctuations, ensuring that the network remains operational during such events. The other options—MPLS, IPS, PDU, and HA firewalls—do not specifically address power-related issues.

   Source: Adapted from community discussion — a87d6a4

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2. Question 852 · 871 in bank

   A network technician is working to deploy a new subnet to support 500 hosts. The technician needs to limit the number of unused IP addresses. Which of the following subnets should the technician choose?

   • A255.255.224.0
   • B255.255.248.0
   • C255.255.252.0
   • D255.255.254.0

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   Answer: D

   Explanation

   255.255.254.0 (or /23). This subnet provides exactly 512 IP addresses, with 510 usable addresses for hosts. This minimizes the number of unused addresses while meeting the requirement to support 500 hosts. The other subnets, while providing more addresses, would result in a higher number of unused IP addresses: 255.255.224.0 (or /19) provides 8192 IP addresses, with many more unused. 255.255.248.0 (or /21) provides 2048 IP addresses. 255.255.252.0 (or /22) provides 1024 IP addresses. A /23 subnet is the most efficient choice for limiting unused IP addresses while meeting the requirement.

   Source: Adapted from community discussion — a87d6a4

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3. Question 853 · 871 in bank

   Users are connected to a switch on an Ethernet interface of a campus router. The service provider is connected to the serial 1 interface on the router. The output of the interfaces is: E1/0: 192.168.8.1/24 - S1: 192.168.7.252/30 - After router and device configurations are applied, internet access is not possible. Which of the following is the most likely cause?

   • AThe Ethernet interface was configured with an incorrect IP address.
   • BThe router was configured with an incorrect loopback address.
   • CThe router was configured with an incorrect default gateway.
   • DThe serial interface was configured with the incorrect subnet mask.

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   Answer: D

   Explanation

   Keep a lookout Y'all when using chatGPT. When I asked ChatGPT, it gave me the answer C ! When I asked it a second time with different prompts, it gave the answer as D. Understand WHY it is wrong & not always using the GPT. It's D because the first network address in a /30 is .252, so this is a un-usable address that is assigned to the Serial interface.

   Source: Adapted from community discussion — stinkle

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4. Question 854 · 871 in bank

   A network engineer is installing APs for a SOHO where every staff member uses a cordless phone. Which of the following standards would work best to reduce interference?

   • A802.11a
   • B802.11b
   • C802.11g
   • D802.1X

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   Answer: A

   Explanation

   802.11a operates in the 5 GHz band, which is less crowded and less likely to experience interference from cordless phones that typically operate in the 2.4 GHz band. The other options—802.11b and 802.11g—operate in the 2.4 GHz band and are more susceptible to interference from cordless phones. 802.1X is a standard for network access control and does not address interference issues.

   Source: Adapted from community discussion — a87d6a4

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5. Question 855 · 871 in bank

   A packet has a destination address that is located outside of the local network. Which of the following should be used to route this packet out of the local network?

   • ADNS server
   • BLoad balancer
   • CDHCP server
   • DDefault gateway

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   Answer: D

   Explanation

   The default gateway is used to route packets that are destined for addresses outside the local network. It serves as the next-hop router that handles traffic leaving the local network. The other options—DNS server, load balancer, and DHCP server—serve different functions and are not responsible for routing packets to external networks.

   Source: Adapted from community discussion — a87d6a4

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6. Question 856 · 871 in bank

   A network administrator wants all outgoing traffic to the internet to flow through a single device for web content inspection. Which of the following devices is the most appropriate?

   • AVPN headend
   • BRouter
   • CProxy server
   • DLoad balancer

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   Answer: C

   Explanation

   A proxy server is the most appropriate device for inspecting web content as it can handle all outgoing traffic to the internet, allowing for content filtering, monitoring, and inspection. The other options—VPN headend, router, and load balancer—serve different purposes: VPN headend manages VPN connections, router handles routing between networks, and load balancer distributes traffic across multiple servers.

   Source: Adapted from community discussion — a87d6a4

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7. Question 857 · 871 in bank

   An attack is redirecting traffic from network hosts by changing their assigned DNS server. None of the hosts have static IP addresses, and the rogue DNS server was assigned automatically during the hosts' lease renewal for the network configuration. Which of the following should be implemented to prevent this type of attack from occurring again?

   • ADHCP snooping
   • BPort security
   • C802.1X authentication
   • DMAC filtering

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   Answer: A

   Explanation

   DHCP snooping is used to prevent unauthorized DHCP servers from assigning IP addresses and other configuration settings, such as DNS servers, to network hosts. By implementing DHCP snooping, you can protect against attacks where a rogue DHCP server provides malicious configuration information, such as a fake DNS server. The other options—port security, 802.1X authentication, and MAC filtering—address different types of security issues and do not specifically prevent unauthorized DHCP servers from affecting network configurations.

   Source: Adapted from community discussion — a87d6a4

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8. Question 858 · 871 in bank

   The cybersecurity department needs to monitor historical IP network traffic on the WAN interface of the outside router without installing network sensors. Which of the following would be best to allow the department to complete this task?

   • AEnabling NetFlow on the interface
   • BEnabling SSH on the interface
   • CEnabling SNMP on the interface
   • DEnabling 802.1Q on the interface

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   Answer: A

   Explanation

   A. Enabling NetFlow on the interface NetFlow is a network protocol developed by Cisco for collecting IP traffic information. By enabling NetFlow on the WAN interface of the router, the cybersecurity department can monitor and analyze historical IP network traffic without needing additional sensors. The other options—SSH, SNMP, and 802.1Q—serve different purposes: SSH is for secure remote access, SNMP is for network management and monitoring, and 802.1Q is used for VLAN tagging.

   Source: Adapted from community discussion — a87d6a4

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9. Question 859 · 871 in bank

   A technician is installing multiple UPS units in a major retail store. The technician is required to keep track of all changes to new and old equipment. Which of the following will allow the technician to record these changes?

   • AAsset tags
   • BA smart locker
   • CAn access control vestibule
   • DA camera

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   Answer: A

   Explanation

   Asset tagging is the process of affixing tags or labels to assets to identify each one individually and track data from real-time location to maintenance history. These tags can be assigned to both fixed and moveable assets that are spread across multiple sites and warehouses.

   Source: Adapted from community discussion — Lu5ck

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10. Question 860 · 871 in bank

    Which of the following attacks encrypts user data and requires a proper backup implementation to recover?

    • ADDoS
    • BPhishing
    • CRansomware
    • DMAC spoofing

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    Answer: C

    Explanation

    The crypto-malware class of ransomware attempts to encrypt data files on any fixed, removable, and network drives. If the attack is successful, the user will be unable to access the files without obtaining the private encryption key, which is held by the attacker. If successful, this sort of attack is extremely difficult to mitigate, unless the user has up to date backups of the encrypted files.

    Source: Adapted from community discussion — phoenix98

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N10-008 practice, question 851. 871 questions available.