If connected to the same SSID Of wireless clients want to start from a AP Roam to another AP, Then two AP The area where the signal overlaps between. What is the general range ()?

• A.100%
• B.50%
• C.No need to overlap
• D.10%-15%

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Radio frequency mainly uses spread spectrum technology. Which of the following technologies belong to spread spectrum technology ()? (Select 2 Answers)

• A.DSSS
• B.OFDM
• C.FHSS
• D.QPSK

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Is the following statement about the introduction of frequency planning correct ()?
(Select 2 Answers)

• A.Microwave interference will occur in the entire 2.4GHz frequency band
• B.If the AP is dual-band, it is recommended to use the 5G priority function
• C.In China, 5GHz generally has 23 non-overlapping channels available
• D.2.4GHz generally uses 1, 6, 11 three non-overlapping channels for coverage

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STA issued 802.11 Message to pass AP When entering the Ethernet, it is converted to 802.3 Packets that are not in the priority mapping method are ().

• A.According to different VAP Set different priorities
• B.Arrive according to the message AP Precedence
• C.according to UP Map to priority
• D.No priority mapping

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MIMO(Multiple input and multiple output) The client can use at most 3 Two spatial streams transmit data at the same time, and the maximum theoretical rate can reach , That is, multiple input and multiple output, using 600Mbps . 802.11n Technology wireless access point and guest

• A.False
• B.True

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