CWS WLAN Hardware & Software Components 4

Question 1

Which component in a WLAN infrastructure stores and distributes 802.11 security policies, such as WPA3 configuration and SSID profiles?

Accepted Answer

Wireless LAN controller or cloud management platform

Answer

The WLC or cloud management platform (e.g., Cisco Meraki, Aruba Central) is the centralized point for defining, storing, and distributing security policies to all managed APs.

Question 2

What is the key difference between a WLAN bridge and a WLAN repeater?

Accepted Answer

A bridge connects two separate network segments; a repeater extends a single network's coverage area

Answer

A wireless bridge connects two distinct network segments (e.g., two buildings), while a repeater extends the coverage of an existing wireless network without creating a separate segment.

Question 3

An enterprise AP supports 4x4:4 MIMO. What does the last digit (4 after the colon) represent?

Accepted Answer

The number of spatial streams

Answer

In MIMO notation TxR:S, S represents the number of independent spatial streams that can be transmitted or received simultaneously, directly impacting throughput.

Question 4

What is the purpose of a wireless LAN probe (or passive site survey tool) used during a post-deployment validation?

Accepted Answer

To passively listen to 802.11 frames and measure RSSI, SNR, and channel utilization at various locations

Answer

A passive survey tool (e.g., a laptop with site survey software) moves through the coverage area collecting RSSI, SNR, and protocol metrics to validate that coverage meets design requirements.

Question 5

Which 802.11 frame type is used by an AP to periodically announce its presence, SSID, and supported rates to nearby clients?

Accepted Answer

Beacon frame

Answer

Beacon frames are management frames broadcast by APs at regular intervals (typically every 100 ms) to advertise network parameters including SSID, supported rates, and security capabilities.

(CWS) Certified Wireless Specialist Practice Test

(CWS) Certified Wireless Specialist Practice Test

CWS WLAN Hardware & Software Components 4