CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 501:

  Several end users viewing a training video report seeing pixelated images while watching. A network administrator reviews the core switch and is unable to find an immediate cause.

  Which of the following BEST explains what is occurring?

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

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  Explanation/Reference:

  Pixelated images while watching a video often indicate that the available bandwidth for transmitting the video stream is insufficient to maintain a high-quality, smooth playback. Bandwidth refers to the amount of data that can be transmitted over a network in a given time period. When there is not enough bandwidth available, the video stream may be compressed or downgraded, resulting in pixelation and reduced visual quality for the viewers. Jitter refers to the variation in the delay of received packets in a network. While jitter can impact the quality of real-time applications like video streaming, it typically causes issues such as audio or video synchronization problems rather than pixelation. Jitter could lead to audio and video being out of sync, but it's less likely to directly cause pixelated images in a video stream.

• Question 502:

  A network technician is having issues connecting an loT sensor to the internet The WLAN settings were enabled via a custom command line, and a proper IP address assignment was received on the wireless interlace. However, when trying to connect to the internet, only HTTP redirections are being received when data Is requested. Which of the following will point to the root cause of the Issue?

  A. Verifying if an encryption protocol mismatch exists.
  B. Verifying If a captive portal is active for the WLAN.
  C. Verifying the minimum RSSI for operation in the device's documentation
  D. Verifying EIRP power settings on the access point.
  B. Verifying If a captive portal is active for the WLAN.

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  Explanation/Reference:

  The root cause of the issue could be a captive portal being active for the WLAN. When a device connects to a WLAN that has a captive portal, the device is typically redirected to a login page in order to gain access to the internet. This is done by the device receiving HTTP redirections when it tries to access the internet. Therefore, verifying if a captive portal is active for the WLAN would be the most likely solution to this issue.

• Question 503:

  A user reports that a new VoIP phone works properly but the computer that is connected to the phone cannot access any network resources. Which of the following MOST Likely needs to be configured correctly to provide network connectivity to the computer?

  A. Port duplex settings
  B. Port aggregation
  C. ARP settings
  D. VLAN tags
  E. MDIX settings
  A. Port duplex settings

• Question 504:

  Which of the following describes a network in which users and devices need to mutually authenticate before any network resource can be accessed?

  A. Least privilege
  B. Local authentication
  C. Zero trust
  D. Need to know
  C. Zero trust

• Question 505:

  Due to a surge in business, a company is onboarding an unusually high number of salespeople. The salespeople are assigned desktops that are wired to the network. The last few salespeople to be onboarded are able to access corporate materials on the network but not sales-specific resources. Which of the following is MOST likely the cause?

  A. The switch was configured with port security.
  B. Newly added machines are running into DHCP conflicts.
  C. The IPS was not configured to recognize the new users.
  D. Recently added users were assigned to the wrong VLAN
  D. Recently added users were assigned to the wrong VLAN

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  Explanation/Reference:

  In this scenario, the salespeople are assigned desktops that are wired to the network. The fact that the salespeople can access corporate materials on the network suggests that their desktops are able to communicate with the network. However, they cannot access sales-specific resources, which could be an indication that they have been assigned to the wrong VLAN.

  VLANs are used to segment a network into smaller logical pieces, which helps to improve security and network performance. VLANs are often used to group devices by function, department, or location. When a new group of users, such as the salespeople in this scenario, is added to a network, they need to be assigned to the appropriate VLAN to access resources that are specific to their role.

  If the recently added users were assigned to the wrong VLAN, they would not be able to access resources that are specific to their role. In this case, it is likely that the desktops were configured to use the wrong VLAN, which is preventing the salespeople from accessing sales-specific resources.

• Question 506:

  A network technician has been deployed to a remote office where WiFi functionality was lost after some recent remodeling. Upon arrival the technician finds the sole access point In the office is powered on via a Cat6 port, which is PoE+ enabled. All necessary SSIDs are broadcasting property However after connecting, authentication falls. Rebooting the WAP does not remediate the situation, nor does replacing the paten cable between the switch and the patch panel. Which of the following is MOST likely the root cause of this issue?

  A. The WAP is causing a packet storm on the network.
  B. Some of the leads on the male end going into the WAP were damaged
  C. The switchport In question Is using 802. 3at instead of 802. 3at.
  D. The Cat6 uplink to the WAP was plugged into the AUX pot instead of the Gigabit PoE port.
  D. The Cat6 uplink to the WAP was plugged into the AUX pot instead of the Gigabit PoE port.

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  Explanation/Reference:

• Question 507:

  A network administrator needs to implement an HDMI over IP solution. Which of the following will the network administrator MOST likely use to ensure smooth video delivery?

  A. Link aggregation control
  B. Port tagging
  C. Jumbo frames
  D. Media access control
  C. Jumbo frames

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  Explanation/Reference:

  Giants are packets that exceed the configured MTU (Maximum Transmission Unit) of a switchport or interface, which causes them to be dropped or fragmented by the switch or router. The MTU is the maximum size of a packet that can be transmitted without fragmentation on a given medium or protocol. Giants can indicate misconfiguration or mismatch of MTU values between devices or interfaces on a network, which can cause performance issues or errors. CRC errors are errors that occur when the cyclic redundancy check (CRC) value of a packet does not match the calculated CRC value at the destination, which indicates corruption or alteration of data during transmission due to noise, interference, faulty cabling, etc., but not necessarily exceeding MTU values. Runts are packets that are smaller than the minimum size allowed by the medium or protocol, which causes them to be dropped or ignored by the switch or router. Flooding is a technique where a switch sends packets to all ports except the source port when it does not have an entry for the destination MAC address in its MAC address table, which can cause congestion or broadcast storms on a network.

• Question 508:

  Which of the following documents would be used to define uptime commitments from a provider, along with details on measurement and enforcement?

  A. NDA
  B. SLA
  C. MOU
  D. AUP
  B. SLA

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  Explanation/Reference:

  SLA (Service Level Agreement) is a document that outlines the agreed-upon level of service that a provider will deliver to a customer. It includes details on uptime commitments, performance metrics, measurement and enforcement procedures, and remedies for breaches of the agreement.

• Question 509:

  A network administrator is in the process of installing 35 PoE security cameras. After the administrator installed and tested the new cables, the administrator installed the cameras. However, a small number of the cameras do not work. Which of the following is the most likely reason?

  A. Incorrect wiring standard
  B. Power budget exceeded
  C. Signal attenuation
  D. Wrong voltage
  B. Power budget exceeded

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  Explanation/Reference:

  The power budget is the total amount of power that a PoE switch or injector can provide to the connected PoE devices. If the power budget is exceeded, some of the PoE devices may not receive enough power to function properly. To troubleshoot this issue, the network administrator should check the power consumption of each PoE device and the power capacity of the PoE switch or injector.

• Question 510:

  A company has just installed a new cloud VoIP solution, however, users occasionally report poor call quality or dead air being present. Which of the following describes the NEXT troubleshooting step the technician should take?

  A. The technician should check the internal diagnostics on all the phones to look for a common thread.
  B. The technician should reset all the phones and deprovision information from the provider
  C. The technician should use a packet tracer to see if the traffic is getting out of the network
  D. The technician should run ping tests on the Internet line to monitor for packet loss and latency
  D. The technician should run ping tests on the Internet line to monitor for packet loss and latency