CompTIA CompTIA Network+ N10-008 Questions & Answers

• Question 21:

  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 22:

  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 23:

  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 24:

  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 25:

  Which of the following routing protocols has routes that are classified with an administrative distance of 110?

  A. BGP

  B. OSPF

  C. EIGRP

  D. RIP

  Correct Answer: B

• Question 26:

  A user stores large graphic files. The time required to transfer the files to the server is excessive due to network congestion. The user's budget does not allow for the current switches to be replaced. Which of the following can be used to provide FASTER transfer times?

  A. Half duplex

  B. Jumbo frames

  C. LACP

  D. 802.1Q

  Correct Answer: B

• Question 27:

  Which of the following would be used to indicate when unauthorized access to physical internal hardware has occurred?

  A. Motion detectors

  B. Radio frequency identification tags

  C. Tamper evident seal

  D. Locking racks

  Correct Answer: C

  A tamper-evident seal is used to indicate when unauthorized access to physical internal hardware has occurred. These seals are designed to break or show visible signs of tampering if someone tries to open or access a piece of equipment or hardware. This provides a visual indication that unauthorized access or tampering has taken place, alerting security personnel to investigate further.

• Question 28:

  A sales team at a company uses a SaaS solution primarily for videoconferencing and a CRM application that connects to a database server in the corporate data center. Which of the following VPN solutions would allow secure, remote access for sales staff to the CRM application without impacting videoconferencing traffic?

  A. Clientless

  B. Site-to-site

  C. Split tunnel

  D. Full tunnel

  Correct Answer: C

  The best VPN solution for the sales team would be a split tunneling VPN. This type of VPN allows you to route specific traffic through the VPN tunnel, while sending other traffic directly over the internet.

  In this case, the sales team would route the CRM traffic through the VPN tunnel to ensure that it is secure. However, they would not route the videoconferencing traffic through the VPN tunnel, as this could impact the performance of their video calls.

  Here are some of the benefits of using a split tunneling VPN:

  Security: Split tunneling VPNs can help to improve the security of your network by routing sensitive traffic through the VPN tunnel.

  Performance: Split tunneling VPNs can help to improve the performance of your network by sending non-sensitive traffic directly over the internet.

  Flexibility: Split tunneling VPNs give you more flexibility in how you route your traffic.

• Question 29:

  Which of the following routing protocols should be implemented to create a route between a local area network and an ISP?

  A. BGP

  B. EIGRP

  C. RIP

  D. OSPF

  Correct Answer: A

  BGP (Border Gateway Protocol): BGP is designed for routing between different autonomous systems (ASes) on the internet. It is used to exchange routing and reachability information between ISPs, enterprises, and other networks. BGP is well-suited for handling large-scale networks and providing policy-based routing control.

• Question 30:

  Which of the following layers of the OSI model lies between the transport layer and the network layer?

  A. Application

  B. Data link

  C. Session

  D. Presentation

  Correct Answer: D