A network engineer is designing a 1.2 km point-to-point wireless bridge using the 5 GHz band. A building under construction is located directly in the path, 0.5 km from one end. To ensure link reliability, 60% of the first Fresnel zone must remain clear of this obstruction. What is the minimum required height clearance above the building?
A WLAN deployed in a historic library with dense stone walls and ornate metal fixtures is experiencing inconsistent connectivity and low throughput, despite adequate signal strength readings. Which RF behaviors are the most likely primary contributors to this issue? (Select TWO)
A technician installs an access point using a 10-meter coaxial cable with a 75-ohm impedance rating instead of the specified 50-ohm cable. Which measurement at the AP's radio port would most directly indicate this installation error?
True or False: A vertical polarization mismatch of 90 degrees between a transmitter and receiver antenna can theoretically result in a signal loss of over 20 dB.
An administrator in an FCC regulatory domain deploys a Wi-Fi 6E network in an office building adjacent to a naval base. The APs operating on U-NII-6 and U-NII-8 channels are frequently and unpredictably changing channels, causing brief client disconnects. What is the most likely cause of this behavior?
A consultant is designing a very high-density Wi-Fi 6 network for a 500-seat auditorium. The goal is to maximize client capacity and spectral efficiency. How does an 802.11ax AP use Resource Units (RUs) to achieve this?
Which of the following 802.11 amendments were foundational in introducing MIMO, channel bonding, and 64-QAM to achieve higher data rates?
An engineer is analyzing a packet capture from a WLAN using a Wireless Distribution System (WDS) to bridge two buildings. The capture shows a data frame being transmitted from a client in one building to a server in the other. Which MAC addresses would be present in the four address fields of the 802.11 frame traversing the WDS link?
A battery-powered VoWiFi handset needs to conserve power but also requires low latency for voice calls. Which 802.11 power management mechanism is specifically designed to meet these conflicting requirements?
During a client connection attempt, a packet capture reveals that the client sends a series of Probe Request frames but never receives any Probe Response frames from the nearby APs. The client is able to see and connect to other networks in the area. What is a plausible cause for this specific behavior?