CompTIA N10-008 Practice Test - Questions Answers, Page 67

Port mirroring is a method of monitoring network traffic by copying the data packets from one port to another port on the same switch or router. This allows the network security administrator to analyze the contents of the data sent between different networks without affecting the performance or security of the original traffic. Port mirroring can be configured to capture all traffic or only specific types of traffic, such as VLANs, protocols, or IP addresses.

Port Mirroring - CompTIA Network+ N10-008 Domain 3.1 - YouTube1

CompTIA Network+ Certification Exam Objectives, page 142

Changing the default password is a hardening technique that best mitigates the use of publicly available information, such as vendor documentation, online forums, or hacking tools, that may reveal the default credentials of a commercial switch. By changing the default password to a strong and unique one, the network technician can prevent unauthorized access to the switch configuration and management.

Network Hardening - N10-008 CompTIA Network+ : 4.3 - YouTube1

CompTIA Network+ Certification Exam Objectives, page 151

A split-tunnel VPN is a configuration where only specific traffic is routed through a VPN, while the remaining data is sent directly over the internet. This can reduce the bandwidth consumption and cost of the company's internet connection, as cloud-based traffic does not need to pass through the VPN tunnel. A web filter, monitoring, and security are not advantages of a split-tunnel VPN, as they may require all traffic to go through the VPN.

https://www.auvik.com/franklyit/blog/vpn-split-tunneling/

The most likely frequency range that the network consultant will have to support is2.4GHz.This is because the most common legacy wireless standards, 802.11b and 802.11g, use the 2.4GHz range1. IEEE 802.11a uses 5GHz exclusively, and 5.9GHz and 6GHz are not widely used by legacy equipment. Therefore,

A) 2.4GHz is the correct answer.

https://www.networkcomputing.com/networking/wireless-beginners-part-1-rf-and-waves

Multimode fiber optic cables use multiple paths of light that bounce off the cladding, which is a layer of glass or plastic that surrounds the core of the cable.

https://www.explainthatstuff.com/fiberoptics.html

This subnet mask will allow you to have six usable IP addresses in each subnet, with a minimum of wasted addresses. You can use the following formula to calculate the number of subnets and the subnet ID for each subnet:

Number of subnets = 2^network bits Subnet ID = (subnet number - 1) x number of host addresses + network address

The network bits are the number of 1s in the binary representation of the subnet mask, and the network address is the first address in the range. For example, if your range is 192.168.1.0/27, then the network bits are 27, the network address is 192.168.1.0, and the number of host addresses is 30. Therefore, the number of subnets is 2^27, and the subnet ID for the first subnet is (1 - 1) x 30 + 192.168.1.0 = 192.168.1.0. The subnet ID for the second subnet is (2 - 1) x 30 + 192.168.1.0 = 192.168.1.32, and so on.

Subnet masks are covered in Objective 1.4 of the CompTIA Network+ N10-008 certification exam1.

Subnet masks can be calculated based on binary and CIDR-block notations2.

Subnet masks can be used to determine the number of host bits and host addresses3.

1: CompTIA Network+ Certification Exam Objectives, page 42: IPv4 Subnet Masks -- N10-008 CompTIA Network+ : 1.413: Calculating IPv4 Subnets and Hosts -- N10-008 CompTIA Network+ : 1.44

If the port is shut down, it means that the switch has disabled the port and is not sending or receiving any traffic on it. This would explain why the network interface's indicator lights are not blinking on either the computer or the switch, and why the user cannot access resources on the network. The port could be shut down manually by the network administrator, or automatically by the switch due to security or error conditions.

Reference

Port shutdown is one of the common switch configuration options covered in Objective 2.3 of the CompTIA Network+ N10-008 certification exam1.

Port shutdown can cause the network interface's indicator lights to stop blinking2.

Port shutdown can prevent the user from accessing resources on the network3.

1: CompTIA Network+ Certification Exam Objectives, page 52: CompTIA Network+ N10-008: Switch not forwarding frames on trunked port33: Cable Management -- N10-008 CompTIA Network+ : 1.3