WLAN Hardware & Software Components Flashcards
7 cards from real CWS 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 Hardware & Software Components flashcards as text
Which of the following best describes a mesh access point in a WLAN deployment?
Answer: An AP that uses wireless backhaul to connect to the wired network
Mesh APs use one radio as a wireless backhaul to connect to a root AP or other mesh nodes, eliminating the need for a wired Ethernet connection at every AP location.
What is the purpose of an RF spectrum analyzer in WLAN troubleshooting?
Answer: To identify non-802.11 interference sources in the RF spectrum
An RF spectrum analyzer detects and classifies non-802.11 RF sources such as microwave ovens, Bluetooth devices, and cordless phones that can cause interference.
A dual-band access point has two radios. One is operating on the 2.4 GHz band. What band does the second radio typically operate on?
Answer: 5 GHz
Dual-band APs simultaneously operate on both the 2.4 GHz and 5 GHz bands, allowing clients to connect on either band based on capability and network conditions.
What hardware feature allows a tri-radio access point to dedicate one radio exclusively to monitoring the RF environment?
Answer: Dedicated scanning radio
A dedicated scanning radio (sometimes called a security radio) in a tri-radio AP continuously monitors all channels for rogue APs, interference, and security threats without impacting client service.
Which software tool is used by WLAN administrators to plan AP placement, predict coverage, and model RF propagation before deployment?
Answer: Wireless site survey / RF planning software
RF planning tools like Ekahau, AirMagnet, or iBwave use building floor plans and AP specs to predict signal coverage, capacity, and interference before physical deployment.
In a WLAN system, what is the function of the RADIUS server?
Answer: Provides centralized authentication and authorization for wireless users
A RADIUS server provides Authentication, Authorization, and Accounting (AAA) services, validating wireless user credentials during 802.1X/EAP authentication.
What type of antenna connector is most commonly found on consumer-grade access points and WLAN adapters for attaching external antennas?
Answer: RP-SMA connector
The Reverse Polarity SMA (RP-SMA) connector is the most common connector type on consumer Wi-Fi equipment for external antenna attachment, required by FCC regulations.