Which two parameters must be considered when conducting an outdoor mesh site survey? (Choose two.)

Weather conditions including wind load, rain-induced attenuation, ice accumulation, and temperature extremes directly affect antenna alignment stability, signal propagation, and equipment enclosure integrity, making weather assessment a mandatory component of any outdoor mesh site survey.

Traffic lights are not a meaningful source of RF interference or physical obstruction relevant to outdoor Wi-Fi mesh deployments and are not a standard outdoor mesh site survey parameter.

Throughput is a performance requirement or design target, not a physical site condition - it is a metric validated after deployment rather than a parameter assessed during the pre-deployment site survey.

The Fresnel zone is the elliptical RF propagation region between two antennas that must maintain at least 60% clearance from physical obstructions - outdoor mesh surveys must verify that buildings, trees, and terrain do not encroach on this zone, as violations cause significant diffraction loss and link degradation.

The near-far effect is primarily a concern in CDMA cellular systems where a nearby transmitter overpowers a distant one at a shared receiver, and is not a primary parameter evaluated during outdoor Wi-Fi mesh site surveys.