CWDP Channel Planning and RF Design 2

Question 1

What channel width is recommended for high-density enterprise WLAN deployments to maximize the number of available non-overlapping channels in the 5 GHz band?

Accepted Answer

20 MHz

Answer

80 MHz

Answer

40 MHz

Answer

160 MHz

Question 2

When using 40 MHz channel bonding in the 5 GHz band, what is the effect on the number of available non-overlapping channels compared to 20 MHz channels?

Accepted Answer

It roughly halves the number of available channels

Answer

It doubles the number of available channels

Answer

It has no impact on channel count

Answer

It increases channels by one-third

Question 3

What is the purpose of DFS (Dynamic Frequency Selection) in the 5 GHz band?

Accepted Answer

To detect radar systems and move 802.11 devices off channels that interfere with them

Answer

To boost throughput for latency-sensitive applications like VoIP

Answer

To automatically switch devices between 2.4 GHz and 5 GHz bands

Answer

To enable simultaneous dual-band operation on a single radio

Question 4

Which hexagonal cell channel reuse pattern is standard for 2.4 GHz WLAN deployments?

Accepted Answer

Channels 1, 6, and 11 in a honeycomb pattern

Answer

Channels 1, 4, and 8 in a triangular pattern

Answer

Channels 1, 5, and 9 in a linear pattern

Answer

Channels 1, 7, and 13 in a grid pattern

Question 5

In RF design, what is the 'cell edge' and why does it matter?

Accepted Answer

The outer boundary of an AP's coverage area where signal strength approaches the minimum usable threshold

Answer

The physical wall boundary of the building envelope

Answer

The geometric center of an AP's radiation pattern

Answer

The area of peak signal strength directly below the AP

Question 6

What is the recommended minimum RSSI at the cell edge for enterprise voice (VoWLAN) applications according to CWDP design guidelines?

Accepted Answer

-67 dBm

Answer

-50 dBm

Answer

-80 dBm

Answer

-90 dBm

Question 7

Which channel planning approach is preferred in high-density venues such as conference centers or stadiums?

Accepted Answer

5 GHz-only deployment with 20 MHz channels to maximize non-overlapping channel count

Answer

2.4 GHz-only deployment for maximum range

Answer

All APs set to the same channel for seamless roaming

Answer

Mixed 2.4/5 GHz with 80 MHz channel bonding throughout