Practice Test Geeks(CWT) Certified Wireless Technician Practice Test
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CWT Wireless Client Management & QoS Flashcards

6 cards from real CWT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 CWT Wireless Client Management & QoS flashcards as text

  1. What is DSCP marking and how is it used to preserve QoS across a wireless and wired network?

    Answer: A per-packet tagging mechanism in the IP header that indicates traffic priority for QoS treatment across network devices

    DSCP (Differentiated Services Code Point) marks IP packets with a priority value that routers, switches, and wireless controllers use to apply consistent QoS treatment end-to-end.

  2. What is the purpose of band steering in a dual-band wireless network?

    Answer: Encouraging capable clients to connect on the less congested 5 GHz band instead of the 2.4 GHz band

    Band steering uses RSSI thresholds and probe response manipulation to guide dual-band capable clients to the typically faster and less congested 5 GHz band.

  3. A VoIP call over Wi-Fi requires low latency and low jitter. Which WMM access category should voice traffic be mapped to?

    Answer: AC_VO (Voice)

    VoIP traffic should be mapped to the AC_VO (Voice) WMM access category, which has the highest priority and shortest contention windows for minimum latency.

  4. What is the 802.11k standard and how does it assist with client roaming?

    Answer: It provides clients with a neighbor report of nearby APs so they can make faster, more informed roaming decisions

    802.11k (Radio Resource Management) allows APs to provide clients with neighbor reports listing nearby APs, reducing the scan time needed before a roaming decision.

  5. What is the role of a wireless LAN controller (WLC) in managing client associations in a centralized deployment?

    Answer: The WLC centralizes AP configuration, enforces policies, and can manage load balancing and roaming decisions across all APs

    A WLC centralizes management of lightweight APs, enabling consistent policy enforcement, coordinated roaming, and load balancing across the entire wireless infrastructure.

  6. What is airtime fairness and how does it improve the performance of mixed-speed wireless networks?

    Answer: Allocating equal transmission time to each client so that slow legacy clients don't monopolize the wireless medium

    Airtime fairness gives each client an equal share of transmission time rather than equal data throughput, preventing slower legacy clients from disproportionately occupying the channel.