CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 641:

  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?

  A. Jumbo frames
  B. 802. IQ tagging
  C. Native VLAN
  D. Link aggregation
  B. 802. IQ tagging

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  Explanation/Reference:

  The technique that would fulfill the requirement of transferring data in multiple networks is 802.1Q tagging. 802.1Q tagging is a method of adding a tag or identifier to Ethernet frames that indicate which VLAN (Virtual Local Area Network) they belong to. VLANs are logical subdivisions of a network that allow devices in different physical locations or segments to communicate as if they were in the same network. VLANs improve network performance, security, and management by reducing broadcast traffic, isolating sensitive data, and grouping devices by function or department. By using 802.1Q tagging, two Layer 2 switches can exchange data from multiple VLANs over a single trunk link, without mixing or losing the VLAN information. References: CompTIA Network+ N10-008 Certification Study Guide, page 64; The Official CompTIA Network+ Student Guide (Exam N10-008), page 2-12.

• Question 642:

  A network technician needs to extend a Cat 6a connection. A device is being moved to another building that is too far away for the existing cable to reach. There is dark fiber between the buildings, and the devices must be directly connected to each other using RJ45 terminations. Which of the following is needed to ensure the connection?

  A. A media converter
  B. A crossover cable
  C. A patch panel
  D. A switch
  A. A media converter

• Question 643:

  Which of me following security controls indicates unauthorized hardware modifications?

  A. Biometric authentication
  B. Media device sanitization
  C. Change management policy
  D. Tamper-evident seals
  D. Tamper-evident seals

• Question 644:

  A network field technician is installing and configuring a secure wireless network. The technician performs a site survey. Which of the following documents would MOST likely be created as a result of the site survey?

  A. Physical diagram
  B. Heat map
  C. Asset list
  D. Device map
  B. Heat map

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  Explanation/Reference:

  A heat map would most likely be created as a result of the site survey. A heat map is a graphical representation of the wireless signal strength and coverage in a given area. It can show the location of APs, antennas, walls, obstacles, interference sources, and dead zones. It can help with planning, optimizing, and troubleshooting wireless networks.

  References: https://www.netspotapp.com/what-is-a-wifi-heatmap.html

• Question 645:

  Given the following Information:

  

  Which of the following would cause performance degradation between PC A and PC B'?

  A. Attenuation
  B. Interference
  C. Decibel loss
  D. Incorrect pinout
  A. Attenuation

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  Explanation/Reference:

  "Attenuation is the weakening of a signal as it travels long distances and is caused when wave signals travel too far without help. As a cable run gets longer, the attenuation increases, and the signal becomes weaker."

• Question 646:

  A technician would like to implement a low-latency Wi-Fi network. Which of the following standards should the technician deploy for the network if the expected user bandwidth is 450Mbps?

  A. 802.11a
  B. 802.11b
  C. 802.11g
  D. 802.11n
  D. 802.11n

• Question 647:

  A network administrator wants to know which systems on the network are at risk of a known vulnerability. Which of the following should the administrator reference?

  A. SLA
  B. Patch management policy
  C. NDA
  D. Site survey report
  E. CVE
  E. CVE

• Question 648:

  A network administrator decided to use SLAAC in an extensive IPv6 deployment to alleviate IP address management. The devices were properly connected into the LAN but autoconfiguration of the IP address did not occur as expected. Which of the following should the network administrator verify?

  A. The network gateway is configured to send router advertisements.
  B. A DHCP server is present on the same broadcast domain as the clients.
  C. The devices support dual stack on the network layer.
  D. The local gateway supports anycast routing.
  A. The network gateway is configured to send router advertisements.

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  Explanation/Reference:

  SLAAC (Stateless Address Autoconfiguration) is a method for IPv6 devices to automatically configure their IP addresses based on the network prefix advertised by a router. The router sends periodic router advertisements (RAs) that contain the network prefix and other parameters for the devices to use. If the network gateway is not configured to send RAs, then SLAAC will not work. A DHCP server is not needed for SLAAC, as the devices generate their own addresses without relying on a server. Dual stack and anycast routing are not related to SLAAC.

• Question 649:

  Which of the following default ports is MOST likely used to send availability and environmental messages about specific devices across the network?

  A. 23
  B. 53
  C. 389
  D. 514
  E. 3306
  D. 514

• Question 650:

  Which of the following OSI model layers contains IP headers?

  A. Presentation
  B. Application
  C. Data link
  D. Network
  E. Transport
  D. Network

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  Explanation/Reference:

  The OSI model is a conceptual framework that helps to understand how different protocols and technologies work together to enable communication between devices. In this model, the Network layer is responsible for routing and addressing, which includes the use of IP (Internet Protocol) headers. IP headers contain information about the source and destination of a packet, as well as other parameters used for routing and fragmentation.