Question 26

MIMO (Multiple input and Multiple output), that is, Multiple input Multiple output, using 802.11n wireless access point and the client can use the three most space flow transmit data at the same time, the theory of rate biggest can reach 600 MBPS.
  • Question 27

    If the AP's transmit power is 1mW, it is converted to dBm and then dBm.
  • Question 28

    In the 802.11 frame, what is the value used to record the network allocation vector (NAV)?
  • Question 29

    The choice of WLAN coverage antenna, for narrow and long areas, it is recommended to select (), open a short distance area, it is recommended to select ().
  • Question 30

    When only one interface of the AC is connected to the aggregation layer switch, the user traffic is directly transmitted through the aggregation switch to the public network.