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Latest Huawei H12-311 Free Exam Questions | SPOTO

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Question #1
Which of the following rates is not 802.11a. The rate supported by the protocol ()?
A. 6Mbps
B. 12Mbps
C. 24Mbps
D. 30Mbpscorrect
View answer
Correct Answer: D
Question #2
What is the maximum rate supported by the original 802.11 protocol?
A. 1
B. 2correct
C. 5
D. 11
View answer
Correct Answer: B
Question #3
The port of the CAPWAP protocol control channel is UDP5247, and the port of the data channel is UDP5246.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #4
WLAN planning has requirements on signal field strength in coverage areas. For example, the signal field strength in key areas ranges from -40 dBm to -75 dBm, and that in common areas exceeds -85 dBm.
A. True
B. False
View answer
Correct Answer: B
Question #5
Assume that the transmit power of AP is 1mW, it is () dBm after converted to dBm.
A. 20
B. 1
C. 0correct
D. 10
View answer
Correct Answer: C
Question #6
for AC+ thin AP The network architecture, the following description is wrong ().
A. AP Can't work alone, need to be AC Centralized agent maintenance management
B. able to pass AC Enhance business QoS, Security and other functions
C. AP Zero configuration itself, suitable for large-scale networking
D. Must be achieved through the network management system AP And user managementcorrect
View answer
Correct Answer: D
Question #7
Which of the following rates is not the rate supported by the 802.11a protocol?
A. 6Mbps
B. 12Mbps
C. 24Mbps
D. 30Mbpscorrect
View answer
Correct Answer: D
Question #8
CAPWAP The port number of the control message of the tunnel protocol is ().
A. 1645
B. 1646
C. 5246
D. 5247correct
View answer
Correct Answer: D
Question #9
Which of the following statements about region is correct ()? (Select 3 Answers)
A. APs belonging to the same region will uniformly adjust the radio frequency channel and powercorrect
B. An AP can belong to two regions at the same time, so that roaming is more optimized
C. If there is no configuration, all APs belong to region 0 by defaultcorrect
D. AP region has three types of deployment: dense deployment, discrete deployment, and ordinary deployment
View answer
Correct Answer: ACD
Question #10
The correct steps for using the Huawei WLAN planning tool are ().
A. Draw coverage area - Draw obstacles - Auto arming AP - Export net gauge report
B. Draw obstacles - Draw coverage area - Auto arming AP - Export net gauge reportcorrect
C. Draw Obstacle - Auto Arming AP - Auto Arming Switch - Export Net gauge Report
D. Automatically generate obstacles - Auto arming AP - Draw coverage area - Export net gauge report
View answer
Correct Answer: B
Question #11
How many channels can the 2.4 GHz band be divided into?
A. 14correct
B. 13
C. 11
D. 3
View answer
Correct Answer: A
Question #12
The two commonly used units describing antenna gain are dBi and dBd, and the conversion relationship between them is: dBi=dBd+2.14.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #13
Indoor installation AP The power is generally () mW.
A. 100correct
B. 500
C. 800
D. 50
View answer
Correct Answer: A
Question #14
Perform connectivity test AP or AC Must be online.
A. True
B. False
View answer
Correct Answer: A
Question #15
2.4 GHz How many channels () can the frequency band be divided into at most?
A. 14correct
B. 13
C. 11
D. 3
View answer
Correct Answer: A
Question #16
Mesh Networking is defined in which of the following protocols ()?
A. 802
B. 802
C. 802
D. 802
View answer
Correct Answer: D
Question #17
If changed AP The configuration parameters of the radio must be restarted AP The order can only take effect.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #18
BSS Full name Basic Service Set,BSS It can be divided Independent BSS and Infrastructure BSS Two kinds.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #19
CAPWAP Tunnel encapsulation AC The port number of the side data packet is5246 , The control message port number is5247 .
A. False
B. True
View answer
Correct Answer: A
Question #20
Which country or region is ETSI a standard organization?
A. China
B. USAcorrect
C. Japan
D. Europe
View answer
Correct Answer: B
Question #21
Which of the following standards organizations is proposed by the CAPWAP protocol?
A. FCC
B. IETFcorrect
C. CCC
D. ETSI
View answer
Correct Answer: B
Question #22
Which is the longest interval between 802.11 frames ()?
A. SIFS
B. IFS
C. DIFScorrect
D. PIFS
View answer
Correct Answer: C
Question #23
In the following Huawei AP, which can support 802.11ac? (Multiple Choice)
A. AP6010DN-AGN
B. AP9030DNcorrect
C. AP7050DEcorrect
D. AP9132DNcorrect
View answer
Correct Answer: BCD
Question #24
When the coverage area is more and more severe in the 1 channel of the 2.4 GHz band, adjusting the device to 3 channels can effectively reduce interference.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #25
Which of the following options is the maximum rate supported by the 802.11g protocol?
A. 54Mbps
B. 108Mbps
C. 11Mbps
D. 22Mbps
View answer
Correct Answer: A
Question #26
What is available of the following that support the 802.11 standard of 5G frequency band? (Multiple Choice)
A. 802
B. 802
C. 802
D. 802
E. 802
F. 802
View answer
Correct Answer: ADE
Question #27
There are four wireless STAs. Which workstations occupy the channel preferentially according to the following backoff time parameters?
A. 5
B. 7
C. 4correct
D. 6
View answer
Correct Answer: C
Question #28
At present, the security policy based on user authentication that is widely used in the enterprise network is () (Select 2 Answers)
A. WPA1 PSK+TKIP/CCMPcorrect
B. WPA1 802
C. WPA2 PSK+TKIP/CCMP
D. WPA2 802
View answer
Correct Answer: ABD
Question #29
Not loaded license Time AC6605 Supported by default AP The number is ().
A. 4correct
B. 0
C. 8
D. 10
View answer
Correct Answer: A
Question #30
AP What are the reasons for being unable to go online ()? (Select 3 Answers)
A. DHCP Incorrect address pool configuration AP Unable to get address
B. AP Use static discovery, but AC of IP Configuration error
C. AP Version with AC Inconsistent versions
D. The controller uses no-auth Authentication mode
View answer
Correct Answer: ABC

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