Explanation:
The requirements for a WLAN to support unidirectional delays of less than 150 ms and a minimum signal strength of -67 dBm at all receivers are standard for Voice over Internet Protocol (VoIP) applications.
Explanation:
The 2.4 GHz band in IEEE 802.11 WLAN systems is divided into 14 channels, each with a center frequency spaced 5 MHz apart. Channel 1 has a center frequency of 2.412 GHz; channel 2 has a center frequency of 2.417 GHz, and so on.
Therefore, to find the center frequency of channel 4, we need to add 15 times 5 MHz (since channel 4 is 15 channels away from channel 1):
Center frequency of channel 4 = 2.412 GHz + (15 x 5 MHz) = 2.427 GHz
So, the center frequency of channel 4 is 2.427 GHz (2427 MHz).
Explanation:
In general, a class 4 PoE device should be able to receive at least 25.5 watts of power, which is the minimum power output for this class.
Explanation:
When an AP powers on and connects to the network, it requests an IP address from the DHCP server. If the DHCP server is configured with Option 43 for the wireless controller vendor, it will send the controller's IP address to the AP as part of the DHCP response. The AP can then use this information to connect with the controller.
Explanation:
Fast Transition (FT), or 802.11r, is an IEEE 802.11 standard method for fast roaming in a multi-AP WLAN.
Explanation:
A deployment of a WLAN with access points configured for ten mW of output power on the 2.4 GHz radios and 20 mW of output power on the 5 GHz radios, along with semi-directional antennas, is likely a Small Office/Home Office (SOHO) deployment.
