CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 631:

  Which of the following protocols will a security appliance that is correlating network events from multiple devices MOST likely rely on to receive event messages?

  A. Syslog
  B. Session Initiation Protocol
  C. Secure File Transfer Protocol
  D. Server Message Block
  A. Syslog

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  Explanation/Reference:

  Syslog is a protocol that provides a standard way for network devices and applications to send event messages to a logging server or a security appliance. Syslog messages can contain information about security incidents, errors, warnings, system status, configuration changes, and other events. A security appliance that is correlating network events from multiple devices can rely on Syslog to receive event messages from different sources and formats. References: https:// www.comptia.org/blog/what-is-syslog

• Question 632:

  A network administrator is implementing process changes based on recommendations following a recent penetration test. The testers used a method to gain access to the network that involved exploiting a publicly available and fixed remote code execution vulnerability in the VPN appliance. Which of the following should the administrator do to BEST prevent this from happening again?

  A. Change default passwords on internet-facing hardware.
  B. Implement robust ACLs with explicit deny-all entries.
  C. Create private VLANs for management plane traffic.
  D. Routinely upgrade all network equipment firmware.
  D. Routinely upgrade all network equipment firmware.

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  Explanation/Reference:

  Firmware is the software that runs on network equipment such as routers, switches, and VPN appliances. Firmware updates often contain bug fixes, security patches, and performance improvements that can prevent or mitigate vulnerabilities and attacks. By routinely upgrading all network equipment firmware, a network administrator can ensure that the network devices are running the latest and most secure versions of firmware and avoid exploiting known and fixed remote code execution vulnerabilities in the VPN appliance.

  References: https://www.comptia.org/training/books/network-n10-008-study-guide (page 462)

• Question 633:

  Which of the following protocols should be used when Layer 3 availability is of the highest concern?

  A. LACP
  B. LDAP
  C. FHRP
  D. DHCP
  C. FHRP

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  Explanation/Reference:

  FHRP stands for First Hop Redundancy Protocol, which is a group of protocols that allow routers or switches to provide backup or failover for the default gateway in a network. FHRP ensures that the network traffic can reach its destination even if the primary gateway fails or becomes unavailable. Some examples of FHRP protocols are HSRP, VRRP, and GLBP.

• Question 634:

  Newly crimped 26ft (8m) STP Cat 6 patch cables were recently installed in one room to replace cables that were damaged by a vacuum cleaner. Now, users in that room are unable to connect to the network. A network technician tests the existing cables first. The 177ft (54m) cable that runs from the core switch to the access switch on the floor is working, as is the 115ft (35m) cable run from the access switch to the wall jack in the office. Which of the following is the MOST likely reason the users cannot connect to the network?

  A. Mixed UTP and STP cables are being used.
  B. The patch cables are not plenum rated.
  C. The cable distance is exceeded.
  D. An incorrect pinout on the patch cable is being used.
  D. An incorrect pinout on the patch cable is being used.

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  Explanation/Reference:

  When patch cables are crimped incorrectly, using an incorrect pinout, it can lead to connectivity issues or complete network communication failures. The fact that the existing cable runs (177ft and 115ft) are working, while the newly crimped patch cables in the room are causing connection problems for users, suggests that there may be a problem with the pinout configuration on the newly crimped cables.

  The total cable distance of 150ft (54m + 35m) is well within the Ethernet distance limitations, so the cable distance itself is not the likely cause of the issue. Plenum rating and cable type (UTP vs. STP) are also less likely to be the primary reasons for the network connectivity problem in this scenario.

• Question 635:

  A new global ISP needs to connect from central offices in North America to the United Kingdom. Which of the following would be the BEST cabling solution for this project?

  A. Single-mode
  B. Coaxial
  C. Cat 6a
  D. Twinaxial
  A. Single-mode

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  Explanation/Reference:

  Single-mode fiber would be the best cabling solution for this project as it provides higher bandwidth and longer distances than other cabling types, such as coaxial and Cat 6a. Single-mode fiber uses a small core that allows only one mode of light to propagate, which minimizes signal degradation and attenuation, making it ideal for long-distance communications. Twinaxial cable is typically used for short-distance, high-speed connections between devices, and coaxial cable is commonly used for cable television and other applications that require high-frequency signals.

• Question 636:

  A company's network is set up so all Internet-bound traffic from all remote offices exits through a main datacenter. Which of the following network topologies would BEST describe this setup?

  A. Bus
  B. Spine-and-leaf
  C. Hub-and-spoke
  D. Mesh
  C. Hub-and-spoke

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  Explanation/Reference:

  A hub-and-spoke network topology is a type of network design in which all remote offices (spokes) connect to a central point (hub), typically a datacenter, where all Internet-bound traffic exits. In this setup, the hub acts as the centralized point of control and management for the entire network.

• Question 637:

  A network technician is deploying multiple switches for a new office. The switches are separately managed and need to be cabled in to support dual firewalls in a HA setup. Which of the following should the technician enable to support proper stability of the network switches?

  A. NTP
  B. CDMA
  C. STP
  D. LACP
  E. 802.1Q
  C. STP

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  Explanation/Reference:

  Spanning Tree Protocol (STP) is used to prevent loops in Ethernet networks, especially in situations where redundant links are present. In this case, where there are multiple switches and dual firewalls in a high availability (HA) setup, enabling STP would help prevent any potential loops that could disrupt network stability.

• Question 638:

  A network technician is troubleshooting VoIP calls that have jumbled and distorted audio. The network technician analyzes the voice VLAN traffic and determines packets on the voice VLAN are being received out of order. Which of the following network metrics are causing the VoIP issues?

  A. Jitter
  B. Bandwidth
  C. Latency
  D. Delay
  A. Jitter

• Question 639:

  A user is tricked into providing log-in credentials to an attacker over the telephone. Which of the following attacks is this an example of?

  A. Shoulder surfing
  B. Tailgating
  C. Phishing
  D. Dumpster diving
  C. Phishing

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  Explanation/Reference:

  Phishing is a type of social engineering attack that uses email, phone, SMS, or other forms of personal communication to trick users into revealing sensitive information, such as log-in credentials, to an attacker. In this case, the user was deceived by a phone call that pretended to be from a legitimate source and asked for their log-in details.

• Question 640:

  A network administrator needs to create an SVI on a Layer 3-capable device to separate voice and data traffic. Which of the following best explains this use case?

  A. A physical interface used for trunking logical ports
  B. A physical interface used for management access
  C. A logical interface used for the routing of VLANs
  D. A logical interface used when the number of physical ports is insufficient
  C. A logical interface used for the routing of VLANs

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  Explanation/Reference:

  An SVI, or switched virtual interface, is a logical interface that is created on a Layer 3- capable device, such as a multilayer switch or a router. An SVI is associated with a VLAN and can be used to route traffic between different VLANs on the same device or across multiple devices. An SVI can also provide management access, security features, and quality of service (QoS) for the VLAN. An SVI is different from a physical interface, which is a port that connects to a physical device or network. A physical interface can be used for trunking, which is a method of carrying multiple VLANs over a single link, or for connecting to a single VLAN. An SVI is also different from a subinterface, which is a logical division of a physical interface that can be assigned to different VLANs.