CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 391:

  A technician is troubleshooting a network switch that seems to stop responding to requests intermittently whenever the logging level is set for debugging. Which of the following metrics should the technician check to begin troubleshooting the issue?

  A. Audit logs
  B. CPU utilization
  C. CRC errors
  D. Jitter
  B. CPU utilization

  ---

  Explanation/Reference:

  CPU utilisation is more of a metric. Additionally it has stated that it is only happening when the logging level is set for debugging. Given this will heavily utilise the CPU then that seems the logical thing to check

• Question 392:

  A network technician needs to select an AP that will support at least 1.3Gbps and 5GHz only. Which of the following wireless standards must the AP support to meet the requirements?

  A. B
  B. AC
  C. AX
  D. N
  E. G
  B. AC

  ---

  Explanation/Reference:

  Wireless AC is a wireless standard that supports up to 1.3Gbps data rate and operates in the 5GHz frequency band only. Wireless AC is also backward compatible with wireless A and N devices that use the 5GHz band. Wireless AC is suitable for high-performance applications such as HD video streaming and online gaming. References: Network+ Study Guide Objective 2.2: Explain the purposes and properties of routing and switching. Subobjective: Wireless standards and their characteristics.

• Question 393:

  A network technician is hired to review all the devices within a network and make recommendations to improve network efficiency. Which of the following should the technician do FIRST before reviewing and making any recommendations?

  A. Capture a network baseline
  B. Perform an environmental review.
  C. Read the network logs
  D. Run a bandwidth test
  A. Capture a network baseline

  ---

  Explanation/Reference:

  Before making any recommendations, a network technician should first capture a network baseline, which is a snapshot of the current performance of the network. This will give the technician a baseline to compare against after any changes are made. According to the CompTIA Network+ Study Manual, the technician should "capture the state of the network before making any changes and then compare the performance after the changes have been made. This will provide an accurate baseline to compare the performance of the network before and after the changes have been made."

• Question 394:

  Network connectivity in an extensive forest reserve was achieved using fiber optics. A network fault was detected, and now the repair team needs to check the integrity of the fiber cable. Which of me following actions can reduce repair time?

  A. Using a tone generator and wire map to determine the fault location
  B. Using a multimeter to locate the fault point
  C. Using an OTDR In one end of the optic cable to get the liber length information
  D. Using a spectrum analyzer and comparing the current wavelength with a working baseline
  C. Using an OTDR In one end of the optic cable to get the liber length information

  ---

  Explanation/Reference:

  Using an OTDR (Optical Time Domain Reflectometer) is the most effective way to reduce repair time when trying to locate a fault in a fiber optic cable. The OTDR sends a pulse of light down the fiber optic cable and measures the time it takes for the light to be reflected back. By analyzing the reflections, the OTDR can determine the location of any faults or breaks in the cable. This allows the repair team to quickly and accurately locate the fault point, which can significantly reduce the time needed for repairs.

• Question 395:

  Which of the following network cables involves bouncing light off of protective cladding?

  A. Twinaxial
  B. Coaxial
  C. Single-mode
  D. Multimode
  D. Multimode

  ---

  Explanation/Reference:

  Multimode fiber optic cables use multiple paths of light that bounce off the cladding, which is a layer of glass or plastic that surrounds the core of the cable. https://www.explainthatstuff.com/fiberoptics.html

• Question 396:

  A security team needs to restrict access to a wireless network in a certain area. Which of the following would be used to enforce this restriction?

  A. Geofencing
  B. WPA2-PSK
  C. EAP-TLS
  D. VLAN tagging
  A. Geofencing

• Question 397:

  A network technician is investigating an IP phone that does not register in the VoIP system Although it received an IP address, it did not receive the necessary DHCP options The information that is needed for the registration is distributes by the OHCP scope All other IP phones are working properly. Which of the following does the technician need to verify?

  A. VLAN mismatch
  B. Transceiver mismatch
  C. Latency
  D. DHCP exhaustion
  A. VLAN mismatch

  ---

  Explanation/Reference:

  A VLAN mismatch is the most likely reason why an IP phone does not receive the necessary DHCP options for registration. A VLAN mismatch occurs when a device is connected to a switch port that belongs to a different VLAN than the device's intended VLAN. This can cause communication problems or prevent access to network resources. For example, if an IP phone is connected to a switch port that belongs to the data VLAN instead of the voice VLAN, it may not receive the DHCP options that contain information such as the TFTP server address, the NTP server address, or the default gateway address for the voice VLAN. These DHCP options are essential for the IP phone to register with the VoIP system and function properly.

  References: https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/13979-dhcp-option-150-00.html

• Question 398:

  A network technician receives a support ticket concerning multiple users who are unable to access the company's shared drive. The switch interface that the shared drive is connected to is displaying the following:

  

  Which of the following is MOST likely the issue?

  A. The switchport is shut down.
  B. The cable is not plugged in.
  C. The loopback is not set.
  D. The bandwidth configuration is incorrect.
  B. The cable is not plugged in.

• Question 399:

  Greater bandwidth and availability are required between two switches. Each switch has multiple 100Mb Ethernet ports available. Which of the following should a technician implement to help achieve these requirements?

  A. Spanning tree
  B. Clustering
  C. Power management
  D. Port aggregation
  D. Port aggregation

• Question 400:

  A technician is connecting a Cat 6 Ethernet cable to a device mat only has LC poos. Which of the following win the technician MOST likely use to accomplish this task?

  A. A bridge
  B. A media converter
  C. A repeater
  D. A router
  B. A media converter

  ---

  Explanation/Reference:

  The technician would MOST likely use a media converter to connect the Cat 6 Ethernet cable to a device that only has LC ports.

  Media converters are devices that convert one type of network media to another, such as converting fiber optic signals to copper Ethernet signals. In this case, the media converter would convert the Cat 6 Ethernet cable signals to the fiber

  optic signals required by the device's LC ports.