Which two access categories could use TXOP value higher than 0, as per 802.11e standard? (Choose two.)
A. AC_VO
B. AC_BK
C. AC_VI
D. AC_BE
E. AC_NC
Which two access categories could use TXOP value higher than 0, as per 802.11e standard? (Choose two.)
A. AC_VO
B. AC_BK
C. AC_VI
D. AC_BE
E. AC_NC