CompTIA Network+ N10-008 Syllabus Exam Questions Answers

The termination that the technician should use when running a cable from the ISP’s port to the front desk is B. TIA/EIA-568-B. This is a standard pin-out for Cat 6 cables that is used for Ethernet and other network physical layers1. It specifies how to arrange the eight wires in an RJ45 connector, which is a common type of connector for network cables.

Port mirroring is a feature that allows a network switch to copy the traffic from one or more ports to another port for monitoring purposes. Port mirroring can be used to analyze the network traffic from a specific source, destination, or protocol without affecting the normal operation of the network. Port mirroring can also help to detect and troubleshoot network problems, such as performance issues, security breaches, or policy violations.

The other options are not correct because they do not meet the requirements of the question. They are:

• Turn on port security. Port security is a feature that restricts the number and type of devices that can connect to a switch port. Port security can help to prevent unauthorized access, MAC address spoofing, or MAC flooding attacks. However, port security does not allow the network security engineer to view the traffic from the user’s PC to the switch.
• Implement dynamic ARP inspection. Dynamic ARP inspection (DAI) is a feature that validates the ARP packets on a network and prevents ARP spoofing attacks. DAI can help to protect the network from man-in-the-middle, denial-of-service, or data interception attacks. However, DAI does not allow the network security engineer to view the traffic from the user’s PC to the switch.
• Configure 802.1Q. 802.1Q is a standard that defines how to create and manage virtual LANs (VLANs) on a network. VLANs can help to segment the network into logical groups based on function, security, or performance. However, 802.1Q does not allow the network security engineer to view the traffic from the user’s PC to the switch.

References1: Port Mirroring - an overview | ScienceDirect Topics2: Network+ (Plus) Certification | CompTIA IT Certifications3: Port Security - an overview | ScienceDirect Topics4: Dynamic ARP Inspection - an overview | ScienceDirect Topics5: 802.1Q - an overview | ScienceDirect Topics

When a user reports that internet access is not working, it is important to first determine if there have been any recent changes to the network or the user's computer that could have caused the issue. This could include changes to the network configuration, the installation of new software or hardware, or other events that could have impacted the user's ability to access the internet. By determining if anything has changed, the administrator can narrow down the possible causes of the issue and focus on addressing the most likely cause.

Port mirroring is a feature that allows a switch to copy the traffic from one or more ports to another port for monitoring or analysis purposes. Port mirroring can help a network administrator to troubleshoot network problems, detect security threats, or optimize network performance. Port mirroring can be configured on most switches using the command-line interface (CLI) or a graphical user interface (GUI).

References:

• CompTIA Network+ N10-008 Certification Exam Objectives, page 51
• CompTIA Network+ N10-008 Cert Guide, Chapter 11: Switching Technologies
• Port Mirroring - CompTIA Network+ Certification (N10-008): The Total Course [Video]1
• CompTIA Network+ N10-005: 2.1 – Port Mirroring - Professor Messer IT Certification Training Courses2
• CompTIA Network+ N10-005: 1.4 – Port Mirroring3