Hubs operate in half-duplex mode and are limited to low speeds like 10Mbps, making them the most likely cause for the network card's performance issue.
Why Not A (DSL): DSL relates to internet connectivity, not local network hardware.
Why Not B (Unmanaged switch): Unmanaged switches typically support full-duplex and higher speeds than
10Mbps.
Why Not C (NIC teaming): NIC teaming increases bandwidth and redundancy, and is not relevant to this issue.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 2.2, networking hardware.

A Wi-Fi analyzer is a tool that can be used to scan the local area for available wireless networks and can provide information such as signal strength, interference, and available channels. It can also be used to locate the best channel to use for a given access point, which can help to reduce latency and improve performance.

The tool that the technician should use to see all drives is Diskmgmt. Diskmgmt is a Windows utility that allows you to manage disk drives and partitions on your computer. It can be used to view all drives, including USB drives, that are connected to the computer12.

A hotspot provides a redundant internet connection using cellular data. This ensures connectivity for the meeting even if the primary ISP connection fails.
* Why Not A (Wireless access point): A wireless access point expands Wi-Fi connectivity but does not provide internet redundancy.
* Why Not B (Near-field communication): NFC is used for short-range communication, not internet connectivity.
* Why Not D (Bluetooth): Bluetooth is for short-range device pairing and cannot serve as a backup internet connection.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 2.7, internet connection types and redundancy.