WIRELESS NETWORKS AND MOBILE IP
INTRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
2.4 GHz
|
|
|
3.4 GHz
|
|
|
4.4 GHz
|
|
|
5.4 GHz
|
Detailed explanation-1: -2.4 GHz WLAN/Wi-Fi Technology (802.11 b/g/n) uses the frequency band from 2401 to 2484 MHz.
Detailed explanation-2: -IEEE 802.11b and 802.11g standards use the unprotected 2.4 GHz frequency band. The 802.11a standard uses the 5 GHz frequency band. Operating in an unregulated frequency band, 802.11b and 802.11g equipment suffer interference from microwave ovens, cordless phones, and other appliances using the same 2.4 GHz ISM band.
Detailed explanation-3: -Like 802.11b, 802.11g operates in the 2.4GHz range and therefore is compatible with it. IEEE 802.11n: The newest of the wireless standards listed in the Network+ objectives is 802.11n.
Detailed explanation-4: -802.11g is the third modulation standard for wireless LANs. It works in the 2.4 GHz band (like 802.11b) but operates at a maximum raw data rate of 54 Mbit/s.