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802.11b is based on Orthogonal Frequency Division Multiplexing (OFDM) technology.
802.11b is based on Orthogonal Frequency Division Multiplexing (OFDM) technology.A . TrueB . FalseView AnswerAnswer: B
Which of the following standards organization for the WLAN device is certified to achieve interoperability of WLAN technology()?
Which of the following standards organization for the WLAN device is certified to achieve interoperability of WLAN technology()?A . WiFi AllianceB . IEEEC . IETFD . FCCView AnswerAnswer: A
What are the WLAN standard supporting 5GHz frequency band()?
What are the WLAN standard supporting 5GHz frequency band()? (Select 2 Answers)A . 802.11aB . 802.11bC . 802.11gD . 802.11nView AnswerAnswer: A D
Which of the following options belong to the differences between 802.11b/g protocol? (Select three Answers)
Which of the following options belong to the differences between 802.11b/g protocol? (Select three Answers)A . different capacityB . two protocols use different technologyC . support different data ratesD . work of different frequency bandsView AnswerAnswer: A B C
How long is the distance between each channel center frequency of 2.4 GHz frequency band()?
How long is the distance between each channel center frequency of 2.4 GHz frequency band()?A . 20 MHzB . 22 MHzC . 5 MHzD . 10 MHzView AnswerAnswer: C
What the maximum rate of Mbps do the original 802.11 protocol support?
What the maximum rate of Mbps do the original 802.11 protocol support?A . 1B . 2C . 5.5D . 11View AnswerAnswer: B
Which is correct of the following statement()?
Which is correct of the following statement()? (Select 3 Answers)A . WDS can transmit the Cable Network Information by the architecture of wireless networks.Take this, the Network Information can be transferred to another wireless network environment, or another cable network..B . Wireless network bridge function usually refers to the one-to-one,...
BSS is called the Basic Service Set, BSS can be divided into Independent BSS and Infrastructure BSS two kinds 。
BSS is called the Basic Service Set, BSS can be divided into Independent BSS and Infrastructure BSS two kinds 。A . TrueB . FalseView AnswerAnswer: A
Barker code is a sequence of bits 11 (e.g., 10110111000), there is advantage in wireless transmission, can effectively reduce the interference, but reduces the efficiency.
Barker code is a sequence of bits 11 (e.g., 10110111000), there is advantage in wireless transmission, can effectively reduce the interference, but reduces the efficiency.A . TrueB . FalseView AnswerAnswer: A
In the frames of 802.11, when the the wireless station sends a signal to wireless AP, what are the values of To DS and From DS()?
In the frames of 802.11, when the the wireless station sends a signal to wireless AP, what are the values of To DS and From DS()?A . 0,0B . 0,1C . 1,0D . 1,1View AnswerAnswer: C
