GB0-342-ENU問題集PDFで100%合格保証付き
GB0-342-ENUブレーン問題集でリアル試験最新問題2023年07月09日には340問題
質問 # 106
How to modify the name of SSID in wlan service- -e template on H3C wireless controller?
- A. In the service-template view, first enter service-template disable", then enter "ssid****", and finally enter "service-template enable" to complete the modification of an SSID name
- B. Enter "ssid****" directly in the service-template view to modify
- C. Enter "radio disable" in the AP's radio view, and then enter "ssid***" in the service-template view to modify
- D. You cannot modify the SSID name in the wlan service-template, you can only delete the original service-template, then create a new service-template and enter a new SSID name to achieve the purpose of modifying the SSID name
正解：A
質問 # 107
The difficulties of rail transit data transmission are:
- A. High-speed mobile guaranteed transmission channel bandwidth
- B. High-speed movement to ensure the stability of the transmission channel
- C. The high-density coverage of the station has serious interference
- D. The train moves to establish a rhyme channel
正解：A、B、D
質問 # 108
The transmit power is 7dBm, what is the corresponding transmit power?
- A. 20mw
- B. 5mw
- C. 7mw
- D. 10mw
正解：B
質問 # 109
About the CAPWAP protocol AP registration to AC interaction process description is correct ()
- A. Discovery-Join-ImageData-Configure
- B. ImageData-DiscoveryJoin-Configure
- C. Discovery-ImageDataJoin-Configure
- D. ImageData-Configure-Discovery-Join
正解：A
質問 # 110
What are the commonly used troubleshooting commands for WLAN network failures?
- A. display command
- B. debugging command
- C. ping command
- D. tracert command
正解：A、B、C、D
質問 # 111
For wireless dense user areas, which of the following is the best way to increase bandwidth and performance per user?
- A. Increase Antenna Gain
- B. Add APs and load balance among APs
- C. Increase transmit power
- D. Increase the AP's uplink bandwidth
正解：B
質問 # 112
Which of the following statements about signals is true
- A. The interference from FM radio is narrowband.
- B. In theory, white noise affects all frequencies of a radio signal uniformly, while narrowband interference is noise only within a small range of frequencies.
- C. There are two common methods for signal analysis: time domain analysis and frequency domain analysis. Time domain analysis is usually viewed with an oscilloscope, while frequency domain analysis is usually viewed with a spectrum analyzer.
- D. The signal of each frequency point in the spectrum analyzer should be a standard sine wave if viewed through an oscilloscope.
正解：A、B、C、D
質問 # 113
When the WLAN is combined with the operator's indoor distributed system, the FAT AP must be used instead of the FIT AP. The above statement is
- A. error
- B. correct
正解：A
質問 # 114
The index used to describe the degree of convergence of the transmit power by the antenna is
- A. Gain
- B. Polarity
- C. bandwidth
- D. Power
正解：A
質問 # 115
When using the 802.11a protocol, the number of non-overlapping channels that can be used when the area code is CN is _____.
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 116
Which parts of the Wlan project are not installed properly, which may affect the strength and quality of wireless signal coverage
- A. Cables (network cables, feeders, power cables)
- B. Antenna
- C. AP
- D. power supply
正解：A、B、C、D
質問 # 117
The message used by STA to terminate the authentication relationship is
- A. Deauthentication
- B. Association
- C. Deassociation
- D. Authentication
正解：A
質問 # 118
In a WLAN, which of the following frames are control frames ___
- A. ACK
- B. CTS
- C. RTS
- D. Beacon
正解：A、B、C
質問 # 119
According to the working principle of the wireless air interface competition mechanism (CSMA/CA), it is recommended that the number of nodes participating in the competition should not exceed _____, because when the contention points reach ______, the air interface conflict will increase sharply. To ensure the effective bandwidth of users, it is recommended that the number of concurrent users under each AP does not exceed ______.
- A. 50; 50; 40
- B. 40; 40; 30
- C. 20; 20; 15
- D. 64; 64; 48
正解：C
質問 # 120
Which of the following materials is the least likely to block RF signals at 2.4GHz?
- A. Concrete
- B. wooden wall
- C. Metal
- D. Steel
正解：B
質問 # 121
Regarding the MAC layer of 802.11, the correct statement is
- A. 802.11 MAC packets are divided into data frames, control frames and management frames.
- B. Control frame is a control message that assists in sending data frames, such as RTS, CTS, ACK, etc.
- C. The management frame is responsible for the management of capability-level interaction, authentication, and association between the STA and the AP. For example, the Beacon frame is a kind of management frame.
- D. The MAC layer of 802.11 is responsible for the communication between the client and the AP. The main functions include scanning, authentication, association and so on.
正解：A、B、C、D
質問 # 122
When W2220XAGP works under 11a for bridging, by default, it can establish bridging with _____ peer devices at most, and the RSSI of peer device signal strength should be at least greater than _____ bridging to ensure stable operation.
- A. 4; 30
- B. 2; 30
- C. 4; 15
- D. 2; 15
正解：B
質問 # 123
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