CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 91:

  A user is having difficulty with video conferencing and is looking for assistance.

  Which of the following would BEST improve performance?

  A. Packet shaping
  B. Quality of service
  C. Port mirroring
  D. Load balancing
  B. Quality of service

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  Explanation/Reference:

  Quality of service (QoS) is a mechanism that prioritizes network traffic based on different criteria, such as application type, source and destination address, port number, etc., and allocates bandwidth and resources accordingly. QoS would best improve performance for video conferencing, as it would ensure that video traffic gets higher priority and lower latency than other types of traffic on the network. Packet shaping is a technique that controls the rate or volume of network traffic by delaying or dropping packets that exceed certain thresholds or violate certain policies, which may not improve performance for video conferencing if it causes packet loss or jitter. Port mirroring is a technique that copies traffic from one port to another port on a switch for monitoring or analysis purposes, which does not improve performance for video conferencing at all. Load balancing is a technique that distributes network traffic across multiple servers or devices for improved availability and scalability, which does not

• Question 92:

  A customer has asked a technician to upgrade the wireless router to the fastest speed possible. The technician performs a site survey and notices several older devices will not be able to connect to router that operates In the 5GHz range. Which of the following options should the technician suggest to the customer?

  A. 802. 11a
  B. 802. 11ac
  C. 802. 11b
  D. 802. 11n
  B. 802. 11ac

• Question 93:

  An IT administrator needs to connect older smart-plug devices to the network. The administrator wants to prevent future issues from occurring by using an 802.11 standard that only operates on the 2.4GHz frequency. Which of the following standards should the administrator choose?

  A. 802.11a
  B. 802.11ac
  C. 802.11ax
  D. 802.11b
  D. 802.11b

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  Explanation/Reference:

  802.11b is a wireless networking standard that operates on the 2.4 GHz frequency band. It supports a maximum data rate of 11 Mbps and has a range of about 35 meters indoors and 140 meters outdoors. 802.11b is compatible with older smart-plug devices that use the same frequency band, but it may suffer from interference from other devices that also use the 2.4 GHz band, such as microwave ovens, Bluetooth devices, and cordless phones.

• Question 94:

  An administrator would like to allow Windows clients from outside me office to access workstations without using third-party software. Which or the following access methods would meet this requirement?

  A. Remote desktop gateway
  B. Spit tunnel
  C. Site-to-site VPN
  D. VNC
  A. Remote desktop gateway

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  Explanation/Reference:

  To allow Windows clients from outside the office to access workstations without using third-party software, the administrator can use the Remote Desktop Protocol (RDP). RDP is a built-in feature of the Windows operating system that allows users to remotely connect to and control other Windows computers over a network connection.

  To use RDP, the administrator will need to enable the Remote Desktop feature on the workstations that need to be accessed, and ensure that the appropriate firewall rules are in place to allow RDP traffic to pass through. The administrator will also need to provide the remote users with the necessary credentials to access the workstations.

  Once RDP is set up and configured, the remote users can use the Remote Desktop client on their own computers to connect to the workstations and access them as if they were physically present in the office. This allows the administrator to provide remote access to the workstations without the need for any additional software or third-party tools.

• Question 95:

  A new computer that was connected to the network reported an error of an Identical IP address with another computer. Both computers were configured for SLAAC. Which of the following is causing the error?

  A. Rogue DHCP server
  B. Duplicate MAC addresses
  C. Incorrect router advertisement
  D. Wrong VLAN assignment
  B. Duplicate MAC addresses

• Question 96:

  Which of the following redundant devices creates broadcast storms when connected together on a high-availability network?

  A. Switches
  B. Routers
  C. Access points
  D. Servers
  A. Switches

• Question 97:

  Which of the following ports should be used to securely receive mail that is synchronized across multiple devices?

  A. 25
  B. 110
  C. 443
  D. 993
  D. 993

• Question 98:

  Which of the following would be used to expedite MX record updates to authoritative NSs?

  A. UDP forwarding
  B. DNS caching
  C. Recursive lookup
  D. Time to live
  D. Time to live

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  Explanation/Reference:

  Time to live (TTL) is a value that indicates how long a DNS record can be cached by authoritative NSs (name servers) or other DNS servers before it expires and needs to be updated. A lower TTL value would expedite MX record updates to authoritative NSs, as they would refresh the record more frequently. UDP forwarding is not a DNS term, but a technique of sending UDP packets from one host to another. DNS caching is the process of storing DNS records locally for faster resolution, which does not expedite MX record updates. Recursive lookup is a type of DNS query where a DNS server queries other DNS servers on behalf of a client until it finds the answer, which does not expedite MX record updates.

• Question 99:

  A network administrator needs to add access points to the network because coverage in some areas is improper. Which of the following should the administrator do first?

  A. Interference analysis
  B. Wireless survey
  C. Traffic analysis
  D. Packet capture
  B. Wireless survey

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  Explanation/Reference:

  A wireless survey is the first step that a network administrator should do before adding access points to the network. A wireless survey is a process of collecting data about the wireless environment, such as signal strength, channel usage, interference, and coverage. A wireless survey can help the network administrator to determine the optimal locations and configurations for the access points to provide the best possible coverage and performance for the wireless network. A wireless survey can also help to identify and troubleshoot any issues that may cause improper coverage in some areas. https://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless- controllers/116057-site-survey-guidelines-wlan-00.html

• Question 100:

  A company built a new building at its headquarters location. The new building is connected to the company's LAN via fiber-optic cable. Multiple users in the new building are unable to access the company's intranet site via their web browser,

  but they are able to access internet sites. Which of the following describes how the network administrator can resolve this issue?

  A. Correct the DNS server entries in the DHCP scope
  B. Correct the external firewall gateway address
  C. Correct the NTP server settings on the clients
  D. Correct a TFTP Issue on the company's server
  A. Correct the DNS server entries in the DHCP scope

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  Explanation/Reference:

  Different building means different subnet. This means DHCP is being used which gives out DNS. You usually have multiple DNS servers in your lease. Regular internet means the external DNS works, and internal failing means the DNS server for inside the network was not given out correctly.