[Jan-2022] Latest H3C GB0-341-ENU exam dumps and online Test Engine
H3C GB0-341-ENU: Selling H3CSE WLAN Certification Products and Solutions
NEW QUESTION 32
Which of the following descriptions of electromagnetic waves is correct? (Multiple choice)
- A. The properties of electromagnetic waves include energy, polarization, phase, etc.
- B. The relationship between electromagnetic wave wavelength and frequency is: c=λxf, where c is equal to the speed of light (3*10^8m/s).
- C. The 2.4Ghz and 5GHz frequency bands used by the 802.11b/a/g protocol are related to ultra-high and extremely high frequency bands in radio waves
- D. Electromagnetic wave is a form of motion of electromagnetic field, which is formed by the propagation of changing electromagnetic field in space and requires a propagation medium
Answer: A,B,C
NEW QUESTION 33
Which is not correct about the air interface utilization?
- A. The AP line is not connected to the terminal, and the air interface utilization rate is 0
Answer: A
NEW QUESTION 34
What is thhe correct implementation steps for wireless network optimization?
- A. Confirmation criteria - Analysis of problems - Test results - Signal side optimization - Data side optimization
- B. Confirmation criteria - Analysis problems - Data side optimization - Signal side optimization - Test results
- C. Confirmation criteria - Analysis of problems - Signal-side optimization - Test results - Data-side optimization
- D. Confirmation criteria - Analysis of problems - Signal-side optimization - Data-side optimization - Test results
Answer: D
NEW QUESTION 35
Yagi antenna is also called YAGI antenna, it belongs to?
- A. Directional antenna
- B. Omnidirectional antenna
Answer: A
NEW QUESTION 36
In H3C's Intelligent Management Center (IMC), which is the composition used to realize wireless service management?
- A. WSM
- B. EAD
- C. NTA
- D. UAM
Answer: A
NEW QUESTION 37
In the following description of H3C FIT AP registration, which statement is correct? (Multiple choice)
- A. FIT AP status shows imageload during the registration process, indicating that FIT AP is downloading software from AC
- B. After the FIT AP is successfully registered on the AC, the status displayed is Run, if the registration is unsuccessful, the status is displayed as Idle
- C. During the FIT AP registration process, you must ensure that the AP number added on the AC is consistent with the actual device
- D. There should be a FIT AP software that matches its version in the AC's flash, and make sure that the name is correct
Answer: A,B,C,D
NEW QUESTION 38
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 competition point reaches ________, air interface conflicts will rise sharply. In actual business, to ensure the effective bandwidth of users, it is recommended that the number of concurrent users under each P AP does not exceed _______.
- A. 20 ； 20 ； 15
- B. 50 ； 50 ； 40
- C. 64 ； 64 ； 48
- D. 40 ； 40 ； 30
Answer: A
NEW QUESTION 39
In the g 802.11a/g protocol, OFDM transmission technology defines how many sub-channels, of how many sub-channels are used to transmit data?
- A. 52, 36
- B. 48, 36
- C. 50, 48
- D. 52, 48
Answer: D
NEW QUESTION 40
Through the command "display wlan client mac-address XXXX-XXXX-XXXX", you can view the detailed operating status of the wireless client.
Which onr reflects the strength and quality of the signal received at the client? (Multiple choice)
- A. Roam Status
- B. Wireless mode
- C. RSSI
- D. SNR
Answer: C,D
NEW QUESTION 41
When the encryption level is 10 08 8-bit shared network authentication (WEP) entry mode for the wireless channel, the number of HEX characters that needs to be entered is?
- A. 26
Answer: A
NEW QUESTION 42
The occupied bandwidth of each channel in 802.11g in ISM is?
- A. 5.22Mhz
- B. 22Mhz
- C. 16.6Mhz
- D. 40Mhz
Answer: B
NEW QUESTION 43
What is the RF interface type of H3C indoor AP?
- A. N-type female
- B. SMA female
- C. N-type male
- D. SMA reverse polarity female
- E. SMA male
- F. SMA reverse polarity male connector
Answer: F
NEW QUESTION 44
Which statement about wireless link switch control parameters are correct? (Multiple choice)
- A. Link-maximum-number: The number of MESH links established between the vehicle MR and the trackside, including the main link and the backup link
- B. Link Hold RSSI: The minimum signal strength required to establish and maintain a link
- C. Link Switch Margin: The backup link is switched to the signal threshold of the main link. When the RSSI of the backup link is compared with the RSSI of the main link, when the signal difference is greater than the Link Switch Margin value, the backup link is switched to the main link
- D. Link Hold Time: In order to prevent frequent switching of the main link, when the backup link is switched to the main link, the shortest time the main link is kept.
- E. Link Saturation RSSI: When the signal strength of the opposite end exceeds the threshold, the signal reception may be saturated, resulting in failure to demodulate and link failure. At this time, link switching will be performed immediately
Answer: A,B,C,E
NEW QUESTION 45
What is the type of radio frequency interface in the picture?
- A. N-type female
- B. SMA female
- C. N-type male
- D. SMA reverse polarity female
- E. SMA male
- F. SMA reverse polarity male connector
Answer: D
NEW QUESTION 46
On the COMWARE platform of H3C series products, when using the ping g command, which of the following parameters can be used to specify the number of ICMP messages sent?
- A. -t
- B. -c
- C. -n
- D. -s
Answer: B
NEW QUESTION 47
What is the shape feature of H3C indoor AP RF connector?
- A. External thread + hole
- B. Internal thread + needle
- C. Internal thread + hole
- D. External thread + needle
Answer: D
NEW QUESTION 48
When increasing the gain of an omnidirectional antenna, which of the following descriptions are correct regarding the coverage of the antenna? (Multiple choice)
- A. Reduced coverage in the vertical direction of the antenna
- B. Increased coverage in the vertical direction of the antenna
- C. Reduced antenna coverage in the horizontal direction
- D. Increased antenna coverage in the horizontal direction
Answer: A,D
NEW QUESTION 49
The H3C wireless controller uses the command "wlan service--template 1 clear" to define service--template 1 as a non-encrypted service--template. How to modify it to an encrypted service--template?
- A. First try to enter "service-template disable" in service-template 1, then enter "wlan service-template 1 crypto" in the global view, and finally enter in the service-template 1 view.
- B. You cannot modify the encryption type of the existing wlan service-template 1. You can only delete the original service-template 1, and then create a new service-template 1 through the command "wlan service-template crypto" to modify it to the purpose of the encryption type, but if wlan service-template1 has been applied to the radio of the AP, the relevant application needs to be released first.
- C. wlan service-template 1 has been applied to the radio of the AP, you need to cancel the application first and then enter the command "wlanservice-template 1 crypto". If wlan service-template 1 is not applied, directly enter the command "wlan service-template 1" crypto".
- D. Enter the command "wlan service-template 1 crypto"
Answer: B
NEW QUESTION 50
What are the links in the delivery process of wireless network optimization services with personnel input? (Multiple choice)
- A. Project preparation
- B. Implementation delivery
- C. Issue an optimized plan
- D. Information collection and analysis
Answer: A,B,C,D
NEW QUESTION 51
The following statement about signals, which is correct? (Multiple choice)
- A. The interference produced by FM radio is narrow-band interference.
- B. In theory, noise will uniformly affect all frequencies of radio signals, while narrow-band interference is noise that is only in a small range of frequencies.
- C. The signal of each frequency point in the spectrum analyzer should be a standard sine wave if viewed through an oscilloscope.
- D. There are two common methods for signal analysis: time domain analysis and frequency domain analysis. Time domain analysis usually uses an oscilloscope to view the signal, while frequency domain analysis usually uses a spectrum analyzer.
Answer: A,B,C,D
NEW QUESTION 52
First of all, the multi-frequency combiner must be able to support the required working frequency band, and the closer its passband frequency is to the working frequency of the wireless system, the better, and there is no redundant passband, so as to ensure the best effect; secondly, it must be used for a combined with filtering function, the isolation between ports is generally greater than 80dB, which can minimize the interference between different systems.
- A. True
- B. False
Answer: A
NEW QUESTION 53
Which of the following descriptions of WA2220X-AGP are correct? (Multiple choice)
- A. Support dual radios, support 11a and 11g modes at the same time
- B. Support FIT AP and FAT AP two modes
- C. The maximum radio frequency transmitting power of 11a is 100mw, the maximum transmitting power of 11g is 500mw.
- D. It is an outdoor AP product
Answer: A,B,C,D
NEW QUESTION 54
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