Assume that your network operates in a regulatory domain that allows use of UNII-1, UNII-2, UNII- 2e,
UNII-3, and the 5.8 GHz ISM band for indoor Wi-Fi. In your upcoming 802.11n deployment, you would like
to take advantage of the performance improvements that result from channel bonding. However, after
extensive testing, you have determined that your mission-critical WLAN should not use channels requiring
DFS support.
Given those two criteria (enable channel bonding and disable DFS channels), in the 5 GHz spectrum, how
many non-overlapping channels will your system be able to use?

What is a valid 40 MHz channel configuration in the 2.4 GHz ISM band where channels 1-11 are permitted?
(Choose 2)

You told your customer that multipath fading may be mitigated simply by moving one or both of the
receiver’s antennas a little bit, usually by one to four wavelengths away from its original position. Your
customer is prepared to make the change, but does not know the wavelength for 802.11a.
What is the approximate wavelength of an 802.11a radio wave?

Use the exhibit as a reference.

Given:
– In your regulatory domain, a Tx Power Level of “1” is equivalent to 17 dBm.
– For every integer increment (e.g. from 1 to 2) to the Tx Power Level, the AP’s transmit power is halved.
In units of mW, what is the actual transmit power for an AP configured at a Tx Power Level of “4”?

Given: You are evaluating the theoretical and real-world RF gain benefits of transmit and receive features
introduced by 802.11n with MIMO. This exercise allows you to quantify the feature’s value in a real-world
environment.
What is the maximum theoretical signal gain of chip-based TxBF and MRC (as features) when compared tothe same AP using only a single antenna for transmit and receive (effectively simulating a 1×1 chip)?

What RF math formula should be used to convert an RF value in units of dBm into a value of mW?
*NotE. “dBm” in the formulas represents the known dBm value

Why does a frame transmitted at 1 Mbps have a greater usable range than the same frame transmitted at
54 Mbps?

What is the purpose of Friis transmission equation [(LdB) = 20 log(d) + 20 log (f) – 27.55 ]?

What type of pattern matches the 12 dBi antenna displayed in the exhibit?

What antenna connector type is displayed in the exhibit?