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问题 #1
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
问题 #2
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
问题 #3
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
问题 #4
What kind of technology belongs to Wireless MAN in the folllowing?
A. 2G/3G
B. WLAN
C. Bluetooth
D. WiMaxcorrect
问题 #5
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.
问题 #6
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
问题 #7
AP Domain AP The deployment type does not include ().
A. Ordinary deployment
B. Orderly deployment
C. Discrete deployment
D. Densely deployed
问题 #8
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
问题 #9
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
问题 #10
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
问题 #11
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
问题 #12
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
问题 #13
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
问题 #14
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
问题 #15
Which of the following standards is WLAN (Select 2 Answers)?
A. 802.11a/b/g /n
B. WPA
C. WPA2
D. 802.11i
问题 #16
The networking mode can be divided into direct-connected networking and side-hanging networking based on the location of the AC on the network.
问题 #17
Huawei APs support SSIDs containing Chinese characters.
问题 #18
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.
问题 #19
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.
问题 #20
What was the name of the first radio communication network based on packet technology ()?
A. AINTERNET
B. BARPANet
C. CALOHNET
D. DNSFnet
问题 #21
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%
问题 #22
Which kinds of modulation mode does below figure belong to?
A. AMcorrect
B. FM
C. PM
D. SM
问题 #23
What is the Chinese name of SSID?
A. Basic service set
B. Basic service area
C. Extended service set
D. Service set identifiercorrect
问题 #24
Below does not belong AP The binding template is ().
A. RF template
B. AP template
C. ESS template
D. Planning table template
问题 #25
Which of the following standard is set by WiFi Alliance? (Multiple Choice)
A. 802.11a/b/g/n
B. WPAcorrect
C. WPA2correct
D. 802.11i
问题 #26
Regarding the two major PoE standards, the following statement is incorrect (). (Select 2 Answers)
A. Thecorrect
B. 802.af standard was formulated in 2009, and the maximum output power is 30W
C. 802.at supports four power levels and only supports Category 5 linescorrect
D. 802.af, also known as PoE+, can be compatible with 802.a devices
E. 802.at, also known as PoE+, can be compatible with 802.a devices
问题 #27
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.
问题 #28
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 2.4G wireless client can not to search signal
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
问题 #29
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
问题 #30
IEEE is the standards organization responsible for United States radio frequency use.
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