Which two statements about WiMAX technology are true? (Choose two.)
A.
WiMAX is defined by 802.11i.
B.
Typically, fixed WiMAX networks have a higher-gain directional antenna installed near the
client.
C.
WiMAX is capable of working as a long-range system over several miles.
D.
WiMAX works only for licensed frequencies.
WiMAX is defined by 802.16, that is intended for wireless “metropolitan area networks”. WiMAX can provide broadband wireless access (BWA) up to 30 miles (50 km) for fixed stations, and 3 – 10 miles (5 – 15 km) for mobile stations. In contrast, the WiFi/802.11 wireless local area network standard is limited in most cases to only 100 – 300 feet (30 – 100m).
Fixed WiMAX networks typically have a higher-gain directional antenna installed near the client (customer) which results in greatly increased range and throughput. Using 802.11 with high-gain antenna can bridge last-mile gaps, but they require more power.
WiMAX operates on both licensed and non-licensed frequencies, providing a regulated environment and viable economic model for wireless carriers. In particular, WiMax operates on the 10- to 66-GHz frequency band, so it doesn’t interfere with 802.11 LAN
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Gain long
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Hi Long
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