多项选择题
Which two statements about the Wi-Fi Multimedia （WMM） standard are true？（）
A. Lower-priority traffic is assigned short interframe wait-timers to allow higher-priority traffic access to the wireless network first.
B. Packets that are not assigned to a specific access category are categorized by default as the background access category.
C. The WMM standard was implemented after the 802.11e standard was approved to provide support for non 802.11e devices.
D. WMM is a Wi-Fi Alliance standard that was implemented before the 802.11e standard was approved.
E. WMM uses Enhanced DCF （EDCF） to stipulate fixed and random wait times for the different access classes.
相关考题
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单项选择题
Whichsetofclassescorrectlyidentifiesthefourtrafficclasses，fromhighestprioritytolowestpriority，specifiedinthe802.11estandard？（）
A. gold， silver， bronze， and platinum
B. platinum， gold， silver， and bronze
C. titanium， gold， silver， and bronze
D. voice and video， best effort， background， and scavenger
E. voice， video， best effort， and background
F. voice， video， best effort， and scavenger -
单项选择题
WhichtwocommandsshouldbeenteredonaWLANcontrollertoremoveanyresidualconfiguration？（）
A. Enter the clear controller command followed by the reload command.
B. Enter the clear controller command followed by the reset command.
C. Enter the clear controller command followed by the reset system command.
D. Enter the erase startup-config command followed by the reload command.
E. Enter the erase startup-config command followed by the reset command.
F. Enter the erase startup-config command followed by the reset system command. -
单项选择题
WhichoptioncorrectlyidentifiesthefourmainmenusofaCiscoWirelessControlSystem（WCS）？（）
A. Home， Configure， Location， and Monitor
B. Home， Configure， Monitor， and Refresh
C. Home， Monitor， Refresh， and Administration
D. Monitor， Configure， Location， and Administration
E. Monitor， Configure， Refresh， and Administration
F. Monitor， Location， Refresh， and Administration
