CWT WLAN Installation & Configuration 3

Question 1

What is the function of the 802.11r amendment in a WLAN?

Accepted Answer

Enables fast BSS transition (fast roaming) between APs

Answer

802.11r defines Fast BSS Transition, reducing roaming latency by pre-authenticating clients before they fully move to a new AP.

Question 2

A WLC is being configured to use FlexConnect (H-REAP) mode. What happens to client traffic when the WAN link to the WLC goes down?

Accepted Answer

The AP locally switches traffic and maintains existing client sessions

Answer

In FlexConnect mode, APs can locally switch traffic and maintain client sessions even when connectivity to the WLC is lost.

Question 3

Which value represents the minimum acceptable SNR for a voice-grade WLAN deployment?

Accepted Answer

25 dB

Answer

A minimum SNR of 25 dB is generally recommended for voice applications to ensure low latency and packet loss.

Question 4

When configuring band steering on a dual-band AP, what is the intended outcome?

Accepted Answer

Encourage capable clients to connect on the 5 GHz band

Answer

Band steering nudges dual-band capable clients toward the 5 GHz band to reduce congestion on the 2.4 GHz band.

Question 5

A technician is installing an outdoor AP on a building rooftop. Which grounding method is required to protect against lightning damage?

Accepted Answer

Connect the AP to a proper earth ground via a grounding wire and rod

Answer

Outdoor APs must be bonded to an earth ground via a grounding wire connected to a grounding rod to provide lightning protection.

(CWT) Certified Wireless Technician Practice Test