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WLAN Architectures and Concepts Flashcards

7 cards from real Cisco CCNA 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 Architectures and Concepts flashcards as text

  1. Which 802.11 frame type includes subtypes such as Beacon, Probe Request, Association Request, and Authentication?

    Answer: Management frames

    Management frames handle the setup and maintenance of wireless connections, including network discovery, authentication, and association.

  2. A client roams from AP1 to AP2, both managed by the same WLC. Which type of roaming occurs?

    Answer: Intra-controller roaming where the WLC updates client mapping internally

    When both APs are on the same WLC, intra-controller roaming occurs and the WLC simply updates its internal client-to-AP mapping without requiring full re-authentication.

  3. What does the term 'cell overlap' mean in wireless LAN design, and why is it recommended?

    Answer: A 15-20% overlap between AP coverage areas to ensure seamless client roaming

    A 15-20% coverage cell overlap between adjacent APs ensures clients can begin associating with the next AP before losing signal from the current one, enabling seamless roaming.

  4. Which statement about 802.11ac (Wi-Fi 5) is accurate?

    Answer: It operates exclusively in the 5 GHz band and supports channel widths up to 160 MHz

    802.11ac operates only in the 5 GHz band and supports channel bonding up to 160 MHz, along with MU-MIMO for improved multi-client performance.

  5. In Cisco WLC terminology, what is a 'dynamic interface' used for?

    Answer: Mapping a WLAN/SSID to a specific VLAN on the wired network

    Dynamic interfaces on a WLC map specific WLANs (SSIDs) to VLANs on the wired network, allowing traffic segmentation for different wireless networks.

  6. What is the maximum number of non-overlapping channels available in the 2.4 GHz band in the United States?

    Answer: 3

    In the US, only channels 1, 6, and 11 are non-overlapping in the 2.4 GHz band, giving a maximum of 3 non-overlapping channels.

  7. Which WLAN deployment mode should be used when an AP needs to detect rogue devices and monitor RF activity without serving any clients?

    Answer: Monitor mode

    In monitor mode, the AP dedicates all its resources to scanning channels for rogues, interference, and security threats without providing client access.