CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 721:

  Users are reporting poor wireless performance in some areas of an industrial plant The wireless controller is measuring a tow EIRP value compared to me recommendations noted on me most recent site survey. Which of the following should be verified or replaced for the EIRP value to meet the site survey's specifications? (Select TWO).

  A. AP transmit power

  B. Channel utilization

  C. Signal loss

  D. Update ARP tables

  E. Antenna gain

  F. AP association time

  Correct Answer: AE

  AP transmit power: You should check if your APs have sufficient power output and adjust them if needed. You should also make sure they are not exceeding regulatory limits for your region. Antenna gain: You should check if your antennas have adequate gain for your coverage area and replace them if needed. You should also make sure they are aligned properly and not obstructed by any objects.

  In the scenario described, the wireless controller is measuring a low EIRP value compared to the recommendations noted in the most recent site survey. EIRP is the combination of the power transmitted by the access point and the antenna gain. Therefore, to increase the EIRP value to meet the site survey's specifications, the administrator should verify or replace the AP transmit power (option A) and the antenna gain (option E). This can be achieved by adjusting the transmit power settings on the AP or by replacing the AP's antenna with one that has a higher gain

• Question 722:

  A technician is installing the Wi-Fi infrastructure for legacy industrial machinery at a warehouse. The equipment only supports 802.11a and 802.11b standards. Speed of transmission is the top business requirement. Which of the following is the correct maximum speed for this scenario?

  A. 11Mbps

  B. 54Mbps

  C. 128Mbps

  D. 144Mbps

  Correct Answer: B

  802.11b (Wi-Fi 1) 11 Mbps 100 meter maximum effective range

  802.11a (Wi-Fi 2) 54 Mbps 50 meter maximum effective range

• Question 723:

  Which of the following can have multiple VLAN interfaces?

  A. Hub

  B. Layer 3 switch

  C. Bridge

  D. Load balancer

  Correct Answer: B

  A Layer 3 switch can have multiple VLAN interfaces because it is a type of switch that can perform routing functions, including routing between VLANs. Each VLAN on the switch can be configured with a Layer 3 interface, allowing traffic to be routed between VLANs. In contrast, a hub is a Layer 1 device that simply repeats incoming data to all connected devices, and does not have the ability to create or manage VLANs. A bridge is a Layer 2 device that can connect multiple network segments, but does not perform routing functions or have the ability to create VLAN interfaces. A load balancer is typically used to distribute network traffic across multiple servers, and does not have the ability to create or manage VLANs.

• Question 724:

  All packets arriving at an interface need to be fully analyzed. Which of me following features should be used to enable monitoring of the packets?

  A. LACP

  B. Flow control

  C. Port mirroring

  D. NetFlow exporter

  Correct Answer: C

  Port mirroring is a feature that can be used to enable monitoring of all packets arriving at an interface. This feature is used to direct a copy of all traffic passing through the switch to a monitoring device, such as a network analyzer. This allows the switch to be monitored with the network analyzer in order to identify any malicious or suspicious activity. Additionally, port mirroring can be used to troubleshoot network issues, such as latency or poor performance.

• Question 725:

  Which of the following does the IP address 169.254.222.10 indicate?

  A. No DHCP server connectivity

  B. The DNS server is unavailable

  C. Firewall issue

  D. Duplicate IP addresses are found

  Correct Answer: A

• Question 726:

  Which of the following protocols is used to allow multiple hosts to share a common IP address?

  A. HTTPS

  B. ARP

  C. CARP

  D. NAT

  Correct Answer: D

• Question 727:

  Which of the following devices is used to distribute network traffic equally over multiple links?

  A. Content filter

  B. DNS server

  C. Load balancer

  D. Proxy server

  Correct Answer: C

• Question 728:

  A new user is reporting connectivity issues. Zach, the network technician, notices that there is no link light on the user's NIC. Which of the following would be used to verify the wiring back to the patch panel?

  A. Butt set

  B. Cable certifier

  C. Toner probe

  D. Snips

  Correct Answer: B

• Question 729:

  A network technician configures a firewall to block only certain IP addresses from accessing the Internet.

  All users are reporting that they are unable to access the Internet.

  Which of the following is the MOST likely reason?

  A. Incorrectly configured ACL

  B. Implicit allow statement

  C. SMTP requests are being denied

  D. All protocols are being allowed in

  Correct Answer: A

• Question 730:

  A network technician performs several switch commands to enable various advanced features on the switch in the accounting department. During the configuration changes, several users from this department report connectivity issues. Which of the following logs would the network technician need to analyze to troubleshoot the connectivity issues?

  A. Router logs

  B. History logs

  C. Startup/bootup config logs

  D. Event Viewer logs

  Correct Answer: B