Cisco CCNA WLAN Architectures and Concepts 2

Question 1

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

Accepted Answer

Client authentication and association management

Answer

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

Question 2

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

Accepted Answer

To encapsulate and forward client data traffic to the WLC

Answer

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

Question 3

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

Accepted Answer

802.11n

Answer

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

Question 4

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

Accepted Answer

FlexConnect (HREAP) local switching mode

Answer

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

Question 5

What differentiates an SSID from a BSSID in WLAN terminology?

Accepted Answer

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

Answer

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.

Cisco CCNA Practice Test

Cisco CCNA Practice Test

Cisco CCNA WLAN Architectures and Concepts 2