Practice Test GeeksCisco CCNA Practice Test
← All Cisco CCNA Flashcard Decks

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. What distinguishes WPA3-Personal from WPA2-Personal in terms of key exchange?

    Answer: WPA3 uses Simultaneous Authentication of Equals (SAE) instead of PSK

    WPA3-Personal uses SAE (Simultaneous Authentication of Equals), also known as Dragonfly, which provides forward secrecy and resistance to offline dictionary attacks.

  2. A Cisco AP is configured in 'sniffer mode.' What is the primary function of this mode?

    Answer: Capturing all 802.11 traffic on a channel and forwarding it to a packet analyzer like Wireshark

    Sniffer mode causes the AP to capture raw 802.11 frames on a specified channel and forward them to a remote packet capture tool such as Wireshark for analysis.

  3. Which mechanism does 802.11 use to avoid collisions in the wireless medium since CSMA/CD cannot be used?

    Answer: CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)

    Wi-Fi uses CSMA/CA where devices sense the medium and use random backoff timers to avoid collisions, since collisions cannot be detected in wireless environments.

  4. In a Cisco WLC high availability (HA) pair, what is the role of the 'secondary' WLC when the primary is active?

    Answer: The secondary maintains a warm standby, ready to take over all APs if the primary fails

    In Cisco WLC HA, the secondary controller stays in a warm standby state, synchronizing state with the primary and ready to assume all AP connections upon primary failure.

  5. What is a 'hidden node problem' in wireless networking, and what mechanism addresses it?

    Answer: Two clients that cannot hear each other but both transmit to the same AP causing collisions; addressed by RTS/CTS

    The hidden node problem occurs when two clients can't detect each other's transmissions but share the same AP; RTS/CTS handshaking reserves the medium to prevent collisions.

  6. Which statement about the 802.11ax (Wi-Fi 6) standard is correct?

    Answer: It introduces OFDMA to improve efficiency in dense, multi-client environments

    802.11ax (Wi-Fi 6) introduces OFDMA (Orthogonal Frequency Division Multiple Access) allowing simultaneous transmission to multiple clients, greatly improving efficiency in dense deployments.

  7. When deploying a Cisco WLC, which port type connects the WLC to the switched network and carries multiple VLANs for different WLANs?

    Answer: Trunk port carrying all required VLANs for management and dynamic interfaces

    The WLC distribution system port is connected to a switch trunk port that carries all required VLANs, allowing each WLAN/SSID to map to its respective VLAN.