TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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802.11b
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802.11n
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802.11g
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802.11ac
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Detailed explanation-1: -While 802.11ac is a 5 GHz specification with theoretical data speeds that top 1 Gbps, 802.11ax is tri-band and covers 2.4 GHz, 5 GHz and 6 GHz Wi-Fi spectrum. 802.11ax is expected to deliver real-world Gbps+ speeds for clients that can support enough radios.
Detailed explanation-2: -Forbes states that the fastest real-world 802.11ac speeds recorded are around 720 Mbps (0.72 Gbps). In contrast, the maximum speed recorded for 802.11n was 240 Mbps (0.24 Gbps). While it’s true that WiFi 5 is 3x faster than WiFi 4, the speeds are much lower than the theoretical ones.
Detailed explanation-3: -WiFi is always promoted using ‘theoretical’ speeds and by this standard 802.11ac is capable of 1300 megabits per second (Mbps) which is the equivalent of 162.5 megabytes per second (MBps). This is 3x faster than the typical 450Mbps speed attributed to 802.11n.
Detailed explanation-4: -The 802.11a standard uses the 5 GHz spectrum and has a maximum theoretical 54 Mbps data rate.