Explanation
A spectrum analyzer is a device that can measure the signal strength and frequency of wireless networks. It can help troubleshoot wireless NIC issues by identifying interference, channel overlap, or signal degradation.
A hotspot is a wireless access point that provides internet access to mobile devices. Near-field communication is a technology that allows two devices to communicate wirelessly when they are in close proximity. An Ethernet tap is a device that can monitor network traffic on an Ethernet cable by creating a copy of the data without affecting the original transmission. References: https://www.comptia.org/certifications/a#examdetails
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