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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. In a split-MAC architecture, which functions are handled by the Wireless LAN Controller (WLC) rather than the AP?

    Answer: Client authentication and association management

    In split-MAC architecture, the WLC handles management functions like client authentication and association, while the AP handles real-time functions like RF transmission.

  2. What is the purpose of the CAPWAP data tunnel between an AP and a WLC?

    Answer: To encapsulate and forward client data traffic to the WLC

    The CAPWAP data tunnel encapsulates 802.11 client frames and forwards them to the WLC for centralized processing and routing.

  3. Which 802.11 amendment introduced the concept of high-throughput (HT) with MIMO and channel bonding up to 40 MHz?

    Answer: 802.11n

    802.11n introduced MIMO (Multiple Input Multiple Output) and optional 40 MHz channel bonding, significantly increasing throughput.

  4. An organization wants APs to continue serving clients even if the WLC becomes unreachable. Which feature enables this?

    Answer: FlexConnect (HREAP) local switching mode

    FlexConnect (formerly HREAP) allows APs to locally switch client traffic and maintain client associations even when the WLC connection is lost.

  5. What differentiates an SSID from a BSSID in WLAN terminology?

    Answer: SSID is the human-readable network name; BSSID is the MAC address of the AP radio

    The SSID is the logical network name clients see, while the BSSID is the Layer 2 MAC address of the specific AP radio forming that BSS.

  6. Which statement correctly describes a Mesh AP in a Cisco WLAN deployment?

    Answer: It uses a wireless backhaul link to reach the wired network through a Root AP

    Mesh APs use a wireless backhaul (often on a separate radio) to connect back to a Root AP that has a wired uplink, extending coverage without cabling.

  7. Which 802.11 service set type allows two wireless clients to communicate directly without an AP?

    Answer: IBSS (Independent Basic Service Set)

    An IBSS (Independent BSS), also called an ad-hoc network, allows devices to communicate peer-to-peer without requiring an access point.