Which two statements about the implementation of WLAN QoS are true?()

A . The 802.11e standard is the IEEE 802.11 OoS WLAN standard. B . The Wi-Fi Multimedia (WMM) standard decreases the eight priority levels to four access categories. C . The Wi-Fi Multimedia (WMM) standard is a Wi-Fi Alliance standard that increases the four priority levels to eight access categories. D . The Wi-Fi Multimedia (WMM) standard is an IEEE standard that increases the four priority levels to eight access categories. E . Wireless 802.11 deploys Distributed Coordination Function (DCF), carrier sense multiple access with collision detection (CSMA/CD), interframe spacing, and random wait timers to avoid collisions. F . Wireless OoS designs and implementations commonly use Layer 3 differentiated services code point (DSCP) or Layer 2 802.1 p to ensure priority

时间:2022-10-23 22:15:07 所属题库:CCNP(642-845)题库

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