The following statement about SSID is wrong.

• A.The same SSID signal can be released on two sets of antennas of one AP.
• B.The same SSID can be released on multiple APs.
• C.There is no limit to the number of SSIDs that can be configured on an AP.
• D.Multiple different SSIDs can be released on one AP

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After passing, after not following the following two-link backup networking, the description is incorrect.

• A.In the process of establishing an active/standby link between the AP and the active and standby ACs, the link established first must be the primary link.
• B.The standby AC should always be in the power-on state.
• C.The network service configuration on the active and standby ACs must be consistent.
• D.Dual-link backup technology improves network reliability and ensures business stability in important nodes of the network.

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Which of the following can be done to protect WLAN security (Select 3 Answers)?

• A.Encryption
• B.System protection
• C.Authentication
• D.Control traffic

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If the AP work is in infrastructure mode, then currently, AP working condition is full-duplex mode.

• A.True
• B.False

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Which of the following options belong to the differences between 802.11b/g protocol? (Multiple choice)

• A.support different data rates
• B.different capacity
• C.work of different frequency bands
• D.two protocols use different technology

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