What is the value used to record the Network Allocation Vector (NAV) in an 802.11 frame?

• A.Sequence control bit
• B.address bit
• C.Duration
• D.Frame Control

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The AC performs a load balancing process based on the information.

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

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What is the transmission medium of WLAN?

• A.Carrier current
• B.Radio waves
• C.Satellite communications
• D.Infrared

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TKIP encryption is more secure than WEP encryption because (Select 3 Answers).

• A.Added a key distribution mechanism, no longer using a single key
• B.Adopt a longer IV
• C.Adopting a more complex encryption algorithm
• D.Using a stronger data verification algorithm

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In the Fit AP network, which of the following authentication methods does not require AC to participate during the authentication process?

• A.PSK authentication
• B.Portal authentication
• C.Shared key authentication
• D.802.1X authentication

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