A network administrator is designing a wireless network for a new, high-density office space expected to support a large number of concurrent users and devices. The primary goal is to maximize efficiency and minimize congestion. Which 802.11 standard includes features like Orthogonal Frequency-Division Multiple Access (OFDMA) specifically to improve performance in such environments?
The correct choice is 802.11ax (Wi-Fi 6) because it was specifically designed for high-efficiency in dense environments. It introduces key technologies like Orthogonal Frequency-Division Multiple Access (OFDMA), which allows an access point to communicate with multiple devices simultaneously by subdividing a Wi-Fi channel into smaller resource units. This significantly reduces latency and improves overall network performance with many concurrent users. While 802.11ac (Wi-Fi 5) improved on older standards with features like MU-MIMO, it lacks OFDMA, making 802.11ax the superior choice for high-density deployments. 802.11g and 802.11b are legacy standards that operate in the crowded 2.4 GHz band and have much lower throughput and efficiency, making them unsuitable for this scenario.
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