WIRELESS NETWORKS AND MOBILE IP
WIRELESS NETWORKS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Class 1
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Class 2
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Class 3
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NFC
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Detailed explanation-1: -Class 1: maximum output power 100 mW (20 dBm). Used for extended range up to about 100 m; Class 2: maximum output power 2, 5 mW (4 dBm). Normal usage, range up to about 10 m; Class 3: maximum output power 1 mW (0 dBm). Short range communications from 10 cm up to 1 m.
Detailed explanation-2: -The 802.11ac standard functions exclusively on the 5-GHz band, while 802.11g functions on 2.4 GHz, 802.11n functions on both, and 802.11i is a security standard called WPA2.
Detailed explanation-3: -The 802.11ac Wave 2 is a superset of 802.11ac Wave 1. As such, it supports all the data rates and features of 802.11ac Wave 1, and it comes with the addition of support for the features like downstream MU-MIMO, 160 MHz-wide channels, and up to 8 spatial streams.