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A 5dB coupler has a coupling degree of 5dB and an insertion loss of 2dB . If the input signal power is 17dBm , the output power of the coupling port is :
A 5dB coupler has a coupling degree of 5dB and an insertion loss of 2dB . If the input signal power is 17dBm , the output power of the coupling port is :A . 10dBmB . 12dBmC . 14dBmD . 15dBmView AnswerAnswer: B
A large enterprise wants to build an office network based on WLAN , and now wants to run a routing protocol between two core switches and multiple ACs . It requires the use of an open standard IGP protocol and supports the area division function. Which of the following protocols is the most preferred?
A large enterprise wants to build an office network based on WLAN , and now wants to run a routing protocol between two core switches and multiple ACs . It requires the use of an open standard IGP protocol and supports the area division function. Which of the following protocols is the most preferred?A . RIPB . OSPFC ....
In the VRRP hot backup scenario, which of the following description of the WAC 's CAPWAP source address is correct?
In the VRRP hot backup scenario, which of the following description of the WAC 's CAPWAP source address is correct?A . The address where the AP accesses the WAC is the physical address of the main WACB . WAC 's CAPWAP source address is the primary and standby WAC virtual addressC . Any address configured in WAC can beD . The address where the AP accesses the WAC is the physical address of the...
In the ACU2 solution of an independent AC board in a WLAN campus network project , the switch where the board is located and the ACU2 board are logically two independent network elements, that is, independent management equipment.
In the ACU2 solution of an independent AC board in a WLAN campus network project , the switch where the board is located and the ACU2 board are logically two independent network elements, that is, independent management equipment.A . TRUEB . FALSEView AnswerAnswer: A
Under normal circumstances, when the material is the same thickness, which of the following obstacles will attenuate the 2.4GHz signal the most?
Under normal circumstances, when the material is the same thickness, which of the following obstacles will attenuate the 2.4GHz signal the most?A . MetalB . AsbestosC . Wooden doorD . Tinted glassView AnswerAnswer: A
In the HT40 mode, the main channel sends beacon messages and some data messages, and the auxiliary channel sends other messages.
In the HT40 mode, the main channel sends beacon messages and some data messages, and the auxiliary channel sends other messages.A . TRUEB . FALSEView AnswerAnswer: A
In order to prevent network attacks based on source address spoofing, the binding table matching check is performed on the received IP packets to prevent illegal packets from passing through the AP and improve the security of the network. Which of the following functions can be enabled?
In order to prevent network attacks based on source address spoofing, the binding table matching check is performed on the received IP packets to prevent illegal packets from passing through the AP and improve the security of the network. Which of the following functions can be enabled?A . Dynamic ARP inspection functionB . Flood attack prevention functionC ....
Which of the following encryption algorithms has the highest security strength?
Which of the following encryption algorithms has the highest security strength?A . WEPB . TKIPC . CCMPD . DESView AnswerAnswer: C
In a room sub-system, using AP9330DN , each indoor antenna can be set to a different channel to avoid co-frequency interference.
In a room sub-system, using AP9330DN , each indoor antenna can be set to a different channel to avoid co-frequency interference.A . TRUEB . FALSEView AnswerAnswer: B
What is the core of the wireless medical positioning system ?
What is the core of the wireless medical positioning system ?A . WIFI networkB . Positioning engineC . TAG labelD . Monitoring platformView AnswerAnswer: A
