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In the 802.11 standard, the unicast frame sent must be confirmed by CK, otherwise the frame will be considered lost.
In the 802.11 standard, the unicast frame sent must be confirmed by CK, otherwise the frame will be considered lost.A . TRUE B. FALSEView AnswerAnswer: A
A large-scale WLAN network needs to deploy a wired and wireless integrated network to achieve unified management and maintenance of users. Which of the following ACs is recommended?
A large-scale WLAN network needs to deploy a wired and wireless integrated network to achieve unified management and maintenance of users. Which of the following ACs is recommended?A . S12700 switch + ACU2 B. AC6605 C.AC6005 D. S12700 switch + X1E boardView AnswerAnswer: D
In the dual-link hot backup scheme, a single AP establishes CAPTAP links with the active and standby TACs respectively. One is the active link and the other is the standby link. The TAC does not back up synchronization information. After the active TAC fails, the AP switches to the standby link On, prepare WAC to take over the work.
In the dual-link hot backup scheme, a single AP establishes CAPTAP links with the active and standby TACs respectively. One is the active link and the other is the standby link. The TAC does not back up synchronization information. After the active TAC fails, the AP switches to the standby...
Which of the following descriptions about omnidirectional antennas is wrong?
Which of the following descriptions about omnidirectional antennas is wrong?A . The omnidirectional antenna distributes the signal evenly in a 360-degree omnidirectional area around the center point B. The lobe width of the omnidirectional antenna is 360 degrees horizontally C. The omnidirectional antenna has strong energy gathering ability and good...
In smart roaming, for a terminal that does not support 802.11v or a terminal that falsely supports 802.11v, the AC notifies the current AP to log the sticky user offline, and sends a blacklist to the currently associated AP.
In smart roaming, for a terminal that does not support 802.11v or a terminal that falsely supports 802.11v, the AC notifies the current AP to log the sticky user offline, and sends a blacklist to the currently associated AP.A . True B. FalseView AnswerAnswer: A
In the WAC+FIT AP networking architecture, the AP will go through multiple stages during the online process. The different stages are sorted in chronological order. Which one is the correct one?
In the WAC+FIT AP networking architecture, the AP will go through multiple stages during the online process. The different stages are sorted in chronological order. Which one is the correct one?A . AP obtains IP address -> NAC detects whether AP software version needs to be upgraded -> AP and...
The antenna is different from the signal amplifier. It is a passive device that does not need power supply, but only guides and shapes wireless signals.
The antenna is different from the signal amplifier. It is a passive device that does not need power supply, but only guides and shapes wireless signals.A . True B. FalseView AnswerAnswer: A
The Portal protocol message consists of a fixed-length header and a variable-length attribute field, and the attribute field adopts the TLV (Type-Length-Value) format.
The Portal protocol message consists of a fixed-length header and a variable-length attribute field, and the attribute field adopts the TLV (Type-Length-Value) format.A . True B. FalseView AnswerAnswer: A
In the uninterrupted feature of channel switching, the mechanism of notifying the terminal to switch channels is defined by the 802.11h protocol.
In the uninterrupted feature of channel switching, the mechanism of notifying the terminal to switch channels is defined by the 802.11h protocol.A . True B. FalseView AnswerAnswer: A
There are three implementation methods of CAC. Which of the following options does not belong to the implementation method of CAC?
There are three implementation methods of CAC. Which of the following options does not belong to the implementation method of CAC?A . Based on terminal SNR B. Based on the number of users C. Based on user rate D. Based on channel utilizationView AnswerAnswer: C
