WLAN Design Flashcards
7 cards from real ACMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 WLAN Design flashcards as text
A hospital needs wireless coverage in areas with thick concrete walls and metal equipment. Which AP placement strategy is most appropriate?
Answer: Use a higher-density AP deployment with lower transmit power
Higher AP density with lower transmit power improves coverage in RF-challenging environments like hospitals by reducing the impact of obstacles.
Which antenna type is best suited for providing coverage in a long, narrow hallway?
Answer: Yagi directional antenna
A Yagi directional antenna focuses RF energy in a narrow beam, making it ideal for long hallway deployments.
In a multi-floor office building, what is the primary concern when designing WLAN coverage to avoid co-channel interference between floors?
Answer: Selecting non-overlapping channels and controlling vertical signal bleed
Vertical co-channel interference between floors is managed by using non-overlapping channels and adjusting AP power/tilt to limit signal propagation between floors.
What is the purpose of a pre-deployment RF site survey?
Answer: To identify existing RF interference, coverage gaps, and optimal AP placement
A pre-deployment site survey identifies interference sources, obstacles, and ideal AP locations before physical installation begins.
Which 5 GHz channels in the US are considered UNII-2 and may require DFS?
Answer: Channels 52–144
UNII-2 and UNII-2e channels (52–144) require Dynamic Frequency Selection (DFS) because they overlap with weather radar frequencies.
A retail store wants to track customer movement patterns using WLAN infrastructure. Which Aruba feature supports this use case?
Answer: Aruba Meridian location services
Aruba Meridian provides indoor location services, including customer movement analytics, using the WLAN infrastructure.
When deploying APs in an outdoor environment, what is the main RF design consideration compared to indoor deployments?
Answer: Fresnel zone clearance and longer propagation distances must be considered
Outdoor WLAN design must account for Fresnel zone obstruction and much longer signal propagation distances compared to indoor scenarios.