あなたを合格させるH3CSE WLAN Certification GB0-342-ENU試験問題集で2022年08月11日には340問あります
GB0-342-ENU無料試験学習ガイド！（更新された340問あります)
質問 109
The wireless network authentication method for user authorization authentication by linking with the radius server is. (only for advanced exam)
- A. WEP
- B. EAP-MD5
- C. PEAP
- D. WPA-PSK
正解: B,C
質問 110
Run the command " display wlan client mac--address XXXX--XXXX-XXXX " to view the detailed running status of the wireless client.
Which numbers reflect the received signal strength and quality at the client?
- A. RSSI
- B. SNR
- C. Roam Status
- D. Wireless mode
正解: A,B
質問 111
The main factors that can affect the effective coverage of an AP are:
- A. AP working mode (FAT AP or FIT AP)
- B. Antenna type (gain, azimuth, etc.)
- C. Installation location of AP and antenna
- D. User's desired data rate (bandwidth)
- E. AP transmit power
正解: B,C,D,E
質問 112
Which of the following statements about antenna gain is correct
- A. The higher the gain of the antenna, the better, and the antenna with a large gain can obtain greater transmit power
- B. The larger the antenna gain, the higher the convergence of the signal
- C. Outdoor long-distance coverage scenarios are suitable for directional antennas with a gain of more than 10dbi
- D. The gain selection of the antenna should meet the requirements of the coverage scenario, not the bigger the gain, the better
正解: B,C,D
質問 113
Which of the following does not belong to the encryption methods supported by the wireless controller is
- A. WEP
- B. WSM
- C. WPA2
- D. WPA
正解: B
質問 114
In the wireless network survey and design, when covering floors and areas with business requirements, the received signal strength of more than 95% of the target coverage area should be greater than or equal to _____ (experience value, applicable to most wireless network cards) Key coverage Regional signal strength should be greater than or equal to ____
- A. -85dBm : -80dBm
- B. -75dBm; -70dBm
- C. -90dBm; -85dBm
- D. -80dBm; -75dBm
正解: B
質問 115
Which of the following are ideas for WLAN optimization
- A. WLAN optimization is the only way to achieve high quality goals throughout the wireless network life cycle
- B. WLAN optimization helps wireless networks become the perfect engine for customer business development
- C. WLAN optimization helps to implement wireless solutions in various scenarios
- D. WLAN optimization is a very good way to solve product problems
正解: A,B,C
質問 116
According to the following configuration analysis: Assuming that the state of the FIT AP (test ap) is RUN, the wireless client can search for the SSIDH3C-WLAN and can successfully access this wireless network.
- A. The client can obtain the IP address of the 10.1.1.0/24 segment C The client can obtain the IP address of the 102.168.2.0/24 segment D The client cannot obtain the IP address
- B. The client can obtain the IP address of the 192.168.0.0/24 segment
正解: A
質問 117
Which of the following wireless WLAN PHY layer protocols can only work in the 5G frequency band?
- A. 802.11ac
- B. 802.11n
- C. 802.11a
- D. 802.11ax
正解: A,C
質問 118
What are the characteristics of wireless network scenarios in student dormitories
- A. Significant bandwidth requirements
- B. Internet time is very regular
- C. Signal leakage is easy to cause interference
- D. High proportion of small package business
正解: A,B,C,D
質問 119
Opportunities for WLAN market demand include (
- A. Wireless Campus
- B. Wireless rounds
- C. Hotel wireless coverage
- D. Enterprise Wi-Fi
- E. Logistics wireless inventory management
- F. Wireless Monitoring
- G. WiFi Voice
正解: A,B,C,D,E,F,G
質問 120
What are the types of linear polarization directions of antennas?
- A. before or after
- B. vertical or horizontal
- C. length or width
- D. left or right
正解: B
質問 121
When WA2220X-AGP works as a bridge under 11a, by default, it can
- A. 4; 30
- B. 2; 15
- C. 4; 15
- D. 2; 30
正解: B
質問 122
Which of the following descriptions about 802.11g WLAN devices is correct
- A. 802.11g provides the same maximum speed as 802.11b
- B. The modulation mode of 802.11g 54Mbps is the same as that of 802.11a 54Mbps, both of which use OFDM technology
- C. 802.11g devices are compatible with 802.11a devices
- D. 802.11g devices are compatible with 802.11b devices
正解: B,D
質問 123
Whether the wireless terminal is roaming depends on the client-driven decision mechanism. For the Inter wireless network card, when the "roaming initiative" is set to _____, the wireless client will not switch sensitively, and will only switch to another one when the link quality decreases. Access Point.
- A. any value
- B. highest value
- C. minimum value
- D. Default value
正解: C
質問 124
Which two of the following are the radio interface types of H3C series APs?
- A. SMA male
- B. N-type male
- C. SMA reverse polarity female
- D. SMA reverse polarity male
- E. N-type female
- F. SMA female
正解: D,E
質問 125
In point-to-point (PtP) wireless transmission, the most suitable antenna type is
- A. Directional antenna at both ends
- B. One end of omnidirectional antenna, one end of directional antenna
- C. Omnidirectional antenna at both ends
正解: A
質問 126
The Wi-Fi Alliance is a non-profit international association established in 1999 to certify the interoperability of wireless LAN products based on the IEEE 802.11 specification and to promote the formulation of new wireless standards. Interoperability (eg wireless connectivity, encryption, roaming, etc.).
Which of the following are protocol standards proposed by the Wi-Fi Alliance?
- A. CAPWAP
- B. 802.11e
- C. IACTP
- D. 802.11i
正解: B,D
質問 127
Regarding the matters needing attention in the process of wireless network survey and design, the following statement is correct
- A. When configuring the frequency points in the outdoor AP coverage area, in order to achieve the effective coverage of the AP and avoid mutual interference between channels, the cellular coverage principle of the mobile communication system should be followed in the channel allocation.
- B. When configuring the AP frequency point, firstly, the frequency detection should be carried out on the site of the target area, and the channel that has been used by the AP in the coverage area should be avoided as much as possible.
- C. In WLAN engineering, it is necessary to understand the materials of buildings and surrounding materials through on-site surveys, and to estimate their influence on wireless signals, so as to determine the safe installation location of WLAN equipment.
- D. When measuring the penetration loss of the AP signal by obstacles such as walls, the incident angle of the AP signal needs to be considered.
正解: A,B,C,D
質問 128
In the 802.11b/g protocol, there are a total of 13 channels (1--13) open in China. Please select 3 channels that do not interfere with each other from these 13 channels. Which of the following groups is correct?
- A. 2 , 7 , 12
- B. 1 , 5 , 9
- C. 1 , 2 , 3
- D. 1 , 6 , 11
正解: A,D
質問 129
For the wireless probe function, which of the following descriptions is wrong?
- A. Wireless probe information can only be reported to the server through the AP, and cannot be reported centrally through the AC
- B. The AP probe function can quickly discover and collect wireless devices existing in the surrounding network environment through the AP, and generate the corresponding forgetting, which is directly sent to the designated server by the AP
- C. The server can analyze the number, motion trajectories and associations of wireless devices in the wireless network environment according to the probe message.
- D. Enabling the wireless probe function on the AP will affect the wireless access performance of the AP to a certain extent.
正解: A
質問 130
(Multiple choice) Which of the explanations for common WLAN terms is correct?
- A. BSS : Basic Service Set Basic service set, including the set composed of AP and its associated STA
- B. SSID: Service Set ID Service set identification code, which is the identification of the WLAN service, used to guide the user to choose which WLAN service to connect to
- C. ESS: Extended Service Set, a larger-scale extended service set formed by multiple BSSs with the same SSID
- D. BSSID: BSS ID, usually the MAC address of the AP radio port
正解: A,B,C,D
質問 131
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GB0-342-ENU問題集はH3CSE WLAN Certification認証済み試験問題と解答：https://www.goshiken.com/H3C/GB0-342-ENU-mondaishu.html