Among the following options, it is not the main purpose of roaming.

• A.Ensure that the user's network rate is unchanged.
• B.Ensure that the user's IP address is unchanged.
• C.Avoid excessive authentication time during roaming, resulting in packet loss or even service interruption.
• D.Ensure user authorization information remains unchanged.

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The gain of antenna A is 11dBi, and the gain of antenna B is 8dBi. It can be said that antenna A has a larger gain than antenna B.

• A.3dBi
• B.3dB
• C.Uncertain
• D.3dBd

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Which of the following methods does Huawei AC perform load balancing according to?

• A.AC periodically queries the number of STAs associated with an AP.
• B.The STA periodically searches for the neighboring AP information and reports the AP identifier through the associated AP.
• C.The AP periodically sends information about the STA associated with it to the AC.
• D.The STA periodically reports the currently associated AP identifier.

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What are the reasons why users may not be able to connect to the WLAN properly? (Multiple choice)

• A.There are many sources of signal interference around
• B.AP has too many connected users
• C.Weak wireless signal
• D.AP is blacklisted

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What is the parameter used in the 802.11 frame to check the integrity of the received frame?

• A.FCS
• B.Sequence control bits
• C.Duration
• D.Frame Control

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