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Huawei H12-311 Exam Sample Questions | SPOTO

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Question #1
IEEE is the standards organization responsible for United States radio frequency use.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #2
In the following options, () is not the main purpose of roaming.
A. AAvoid long authentication time during roaming, resulting in packet loss or even business interruption
B. BEnsure that the user authorization information remains unchanged
C. CGuarantee users IP The address remains unchanged
D. DEnsure that the user's network rate remains unchanged
View answer
Correct Answer: D
Question #3
What factors of the following will lead to users can not search wireless network signal? (Multiple Choice)
A. AP is configured with 5G priority, leading to 2
B. user wireless network card do not start or wireless network card hardware switch is not opencorrect
C. wireless controller is configured with user isolation function
D. wireless network card driver anomaliescorrect
View answer
Correct Answer: BD
Question #4
The number of user terminals in an indoor WLAN network is 300, and the peak concurrency rate is 70%. The terminal supports the 2.4 GHz and 5 GHz frequency bands. According to the maximum number of users per AP dual-frequency, at least () APs can meet the capacity requirements.
A. 5
B. 6correct
C. 7
D. 8
View answer
Correct Answer: B
Question #5
Regarding the two major PoE standards, the following statement is incorrect (). (Select 2 Answers)
A. Thecorrect
B. 802
C. 802
D. 802
E. 802
View answer
Correct Answer: AC
Question #6
Which of the following standard is set by WiFi Alliance? (Multiple Choice)
A. 802
B. WPAcorrect
C. WPA2correct
D. 802
View answer
Correct Answer: BC
Question #7
Below does not belong AP The binding template is ().
A. RF template
B. AP template
C. ESS template
D. Planning table template
View answer
Correct Answer: D
Question #8
What is the Chinese name of SSID?
A. Basic service set
B. Basic service area
C. Extended service set
D. Service set identifiercorrect
View answer
Correct Answer: D
Question #9
Which kinds of modulation mode does below figure belong to?
A. AMcorrect
B. FM
C. PM
D. SM
View answer
Correct Answer: A
Question #10
If a wireless client connecting the same SSID wants to roam from one AP to another, what is the area of the signal overlap between the two APs?
A. 50%
B. No need to overlap
C. 100%correct
D. 10%-15%
View answer
Correct Answer: C
Question #11
What was the name of the first radio communication network based on packet technology ()?
A. AINTERNET
B. BARPANet
C. CALOHNET
D. DNSFnet
View answer
Correct Answer: C
Question #12
A point-to-point wireless bridge can be used to connect two networks that are located at different locations. In a wireless backbone connection, the Root AP and the Leaf AP should be set to different channels.
A. False
B. True
View answer
Correct Answer: A
Question #13
The 802.11 physical layer standard defines some common operations of the wireless network at the physical layer: operations such as QoS, security, and roaming.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #14
Huawei APs support SSIDs containing Chinese characters.
A. ATrue
B. BFalse
View answer
Correct Answer: A
Question #15
The networking mode can be divided into direct-connected networking and side-hanging networking based on the location of the AC on the network.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #16
Which of the following standards is WLAN (Select 2 Answers)?
A. 802
B. WPA
C. WPA2
D. 802
View answer
Correct Answer: BC
Question #17
In the following options, the role of the AP in the Huawei Mesh network is (). (Multiple Choice)
A. MPPcorrect
B. MAPcorrect
C. MBP
D. MPcorrect
View answer
Correct Answer: ABD
Question #18
Which of the following are AP Factors to consider in capacity planning (). (Select 3 Answers)
A. Equipment performancecorrect
B. Number of concurrent userscorrect
C. Bandwidth requirement
D. Power supply typecorrect
View answer
Correct Answer: ABD
Question #19
The gain size of antenna can explain ().
A. the amplification capability of antenna to high frequency signal
B. antenna collects electromagnetic waves or launch ability strong or weak in one directioncorrect
C. the amplification ability of electromagnetic waves
D. antenna collects electromagnetic waves or launch ability strong or weak in all directions
View answer
Correct Answer: B
Question #20
WLAN The signal passes through which of the following materials with less penetration loss (). (Select 2 Answers)
A. Gypsum boardcorrect
B. Glass window (colorless)correct
C. Concrete wall
D. Brick wall
View answer
Correct Answer: AB
Question #21
When did the initial application of wireless networks begin ()?
A. During the First World War
B. During the Second World War
C. 20 Late century
D. 2000 Years later
View answer
Correct Answer: B
Question #22
For the choice of WLAN coverage antennas, it is recommended to choose () for long and narrow areas, and () for wide and short-distance areas.
A. Omnidirectional antenna; directional antenna
B. Directional antenna; omnidirectional antenna
C. Omnidirectional antenna; Omnidirectional antenna
D. Directional antenna; Directional antenna
View answer
Correct Answer: B
Question #23
With which of the following ways does the antenna get the gain?
A. Using a power amplifier in an antenna system
B. Make the antenna radiation more concentratedcorrect
C. Using high efficiency antenna feeders
D. Equipment using low standing wave ratio
View answer
Correct Answer: B
Question #24
AP Domain AP The deployment type does not include ().
A. Ordinary deployment
B. Orderly deployment
C. Discrete deployment
D. Densely deployed
View answer
Correct Answer: B
Question #25
When did the initial application of wireless networks begin ()?
A. During the First World War
B. During the Second World Warcorrect
C. 20 Late century
D. 2000 Years later
View answer
Correct Answer: B
Question #26
pass through FTP Way to upgrade AP, You need to ensure AP and FTP Servers can communicate with each other, and AP Put the upgrade file in FTP Root directory.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #27
What kind of technology belongs to Wireless MAN in the folllowing?
A. 2G/3G
B. WLAN
C. Bluetooth
D. WiMaxcorrect
View answer
Correct Answer: D
Question #28
Regarding the networking mode, the following description is correct ().
A. Compared with the three-layer network, the two-layer network is more suitable for large-scale networks such as parks and stadiums
B. The advantage of the three-layer network is simple configuration and easy networking
C. if AC The ability to process data is relatively weak, it is recommended to use bypass networkingcorrect
D. In a direct-connected network, AP Business data can not go through AC And directly reach the upstream network
View answer
Correct Answer: C
Question #29
Multi-floor deployment in a building AP When, the factor that needs attention is (). (Select 3 Answers)
A. The material of the wallcorrect
B. Other interference signalscorrect
C. In order not to affect the beauty, AP Should be hidden in the ceiling
D. Unified planning channelcorrect
View answer
Correct Answer: ABD
Question #30
When did the initial application of the wireless network begin?
A. During a major war
B. During the Second World War
C. Late 20th century
D. After 2000
View answer
Correct Answer: B

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