CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 1081:

  Which of the following can IoT devices most likely be connected to?

  A. Router
  B. Firewall
  C. Proxy server
  D. Access point
  A. Router

• Question 1082:

  A network administrator needs to extend an organization's network to a nearby building that has unused SMF already installed. The network administrator has decided to create a switch-to-switch uplink. Which of the following standards would be the BEST to use?

  A. 10BASE-T
  B. 100BASE-T
  C. 1000BASE-LX
  D. 1000BASE-SX
  C. 1000BASE-LX

• Question 1083:

  A network deployment engineer is deploying a new single-channel 10G optical connection. Which of the following optics should the engineer MOST likely use to satisfy this requirement?

  A. QSFP
  B. QSFP+
  C. SFP
  D. SFP+
  D. SFP+

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  Explanation/Reference:

  SFP+ is a type of optical transceiver that supports 10G single-channel transmission over fiber optic cables. SFP+ stands for small form-factor pluggable plus, and it is compatible with SFP slots on switches and routers.

• Question 1084:

  A technician is documenting an application that is installed on a server and needs to verify all existing web and database connections to the server. Which of the following tools should the technician use to accomplish this task?

  A. tracert
  B. ipconfig
  C. netstat
  D. nslookup
  C. netstat

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  Explanation/Reference:

  Netstat is a command-line utility that allows the technician to view active TCP/IP connections and their status. The technician can use the command "netstat -an" to check all existing connections, including web and database connections to the server. This will show the status of the connections, the local and remote IP addresses, and the port numbers being used.

• Question 1085:

  A technician discovered that some information on the local database server was changed during a tile transfer to a remote server. Which of the following should concern the technician the MOST?

  A. Confidentiality
  B. Integrity
  C. DDoS
  D. On-path attack
  B. Integrity

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  Explanation/Reference:

  The technician should be concerned the MOST about integrity1. Integrity is the property of data that ensures it is accurate, complete, and consistent. When information on the local database server is changed during a file transfer to a remote server, it means that the integrity of the data has been compromised. This could be due to a malicious attack, a network error, a software bug, or a human mistake. The technician should investigate the cause of the data change and take appropriate measures to restore the integrity of the data and prevent future incidents.

• Question 1086:

  A SQL server connects over port:

  A. 445.
  B. 995
  C. 1433.
  D. 1521.
  C. 1433.

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  Explanation/Reference:

  A SQL server connects over port 1433. Port numbers are used to identify specific applications or services on a network device. Port 1433 is the default port for Microsoft SQL Server, which is a relational database management system that uses SQL (Structured Query Language) to store and manipulate data. References: CompTIA Network+ N10-008 Certification Study Guide, page 147; The Official CompTIA Network+ Student Guide (Exam N10-008), page 6-4.

• Question 1087:

  Which of the following is used to create a secure connection between a client and a host?

  A. VLAN
  B. Proxy server
  C. IIS server
  D. VPN
  D. VPN

• Question 1088:

  A customer is adding fiber connectivity between adjacent buildings. A technician terminates the multimode cable to the fiber patch panel. After the technician connects the fiber patch cable, the indicator light does not come on. Which of the following should a technician try first to troubleshoot this issue?

  A. Reverse the fibers.
  B. Reterminate the fibers.
  C. Verify the fiber size.
  D. Examine the cable runs for visual faults.
  A. Reverse the fibers.

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  Explanation/Reference:

  One of the most common causes of fiber connectivity issues is the reversal of the fibers. This means that the transmit (TX) and receive (RX) ports on one end of the fiber link are not matched with the corresponding ports on the other end. For example, if the TX port on one device is connected to the TX port on another device, and the same for the RX ports, then the devices will not be able to communicate with each other. This can result in no indicator light, no link, or no data transmission12. To troubleshoot this issue, the technician should first try to reverse the fibers. This can be done by swapping the connectors at one end of the fiber patch cable, or by using a crossover adapter or cable that reverses the polarity of the fibers. The technician should then check if the indicator light comes on and if the devices can communicate properly12. The other options are not the first steps to troubleshoot this issue. Reterminating the fibers is a time-consuming and costly process that should be done only if there is evidence of physical damage or poor quality of the termination. Verifying the fiber size is not relevant in this scenario, as multimode fiber is compatible with multimode fiber, and any mismatch in core diameter or bandwidth would result in high attenuation, not complete loss of signal. Examining the cable runs for visual faults is a useful technique, but it requires a special tool called a visual fault locator (VFL) that emits a visible red light through the fiber and shows any breaks or bends along the cable. However, a VFL cannot detect polarity issues or connector problems, so it is not sufficient to troubleshoot this issue

• Question 1089:

  Which of the following is required when connecting an endpoint device with an RJ45 port to a network device with an ST port?

  A. A media converter
  B. A bridge
  C. An MDIX
  D. A load balancer
  A. A media converter

• Question 1090:

  A network administrator redesigned the positioning of the APs to create adjacent areas of wireless coverage. After project validation, some users still report poor connectivity when their devices maintain an association to a distanced AP. Which of the following should the network administrator check FIRST?

  A. Validate the roaming settings on the APs and WLAN clients
  B. Verify that the AP antenna type is correct for the new layout
  C. Check to see if MU-MIMO was properly activated on the APs
  D. Deactivate the 2.4GHz band on the APS
  A. Validate the roaming settings on the APs and WLAN clients

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  Explanation/Reference:

  Roaming is the process of switching from one AP to another as the user moves around the network. If the roaming settings are not configured correctly, the user may experience poor connectivity when the device maintains an association with a distant AP. Improper roaming settings can result in slow speeds, dropped connections, and low signal strength.

  Therefore, validating the roaming settings is the first step the network administrator should take when addressing the issue of poor connectivity. The roaming settings need to be configured in a way that allows the device to seamlessly switch from one AP to another as the user moves around the network. If the roaming settings are not configured properly, the network administrator should adjust them to ensure the best possible user experience.

  By validating the roaming settings first, the network administrator can eliminate the possibility of this being the root cause of the issue, and move on to other potential causes if necessary.