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NEW QUESTION 185
Which of the following descriptions about the PoE power supply requirements of AP products is correct?
- A. When the AP is powered by PoE, the length of the network cable is recommended to be within 100 meters
- B. The network cable connecting the AP to the upstream PoE power supply device is recommended to be Category 5e or above
- C. The network cable connecting the AP to the upstream PoE power supply device is not required
- D. AP can support power supply from PoE module or PoE switch.
Answer: A,B,D
NEW QUESTION 186
The best way to determine the distance between wireless devices is to ______
- A. Field test with AP to determine transmission distance
- B. Estimating RF Signals Using Intense Linear Light Sources
- C. Calculate the transmission distance using the path loss calculation formula
- D. Visual transmission distance
Answer: A
NEW QUESTION 187
Which of the following descriptions about wireless bridging is correct?
- A. FATAP can be bridged with FAT AP
- B. Two or more APs of the wireless bridge must work on the same channel
- C. H3C wireless AP can be wirelessly bridged with APs of other manufacturers
- D. Fat AP can be bridged with Fit AP
Answer: A,B,C,D
NEW QUESTION 188
Common problem-diagnosing commands for wireless troubleshooting are:
- A. display command
- B. debugging command
- C. ping command
- D. tracert command
Answer: A,B,C,D
NEW QUESTION 189
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. minimum value
- C. highest value
- D. Default value
Answer: B
NEW QUESTION 190
Which type of V7 wireless license authorization file is (single choice)
- A. 210235A0UDC12B000105.ak
- B. 210235A0UDC12B000105.did
- C. 210235A0UDC12B000105
Answer: B
NEW QUESTION 191
(Single choice) Which of the following is the correct description of the process of CAPWAP negotiation from AP to AC?
- A. ImageData->Configure->Discovery->Join
- B. ImageData->Discovery->Join->Configure
- C. Discovery->ImageData->Join->Configure
- D. Discovery->Join->ImageData->Configure
Answer: D
NEW QUESTION 192
General office is a typical scenario with a small radius and a large number of concurrent users. Generally speaking, it has the following characteristics.
- A. open area, small area
- B. High user density and high bandwidth requirements
- C. There are partitions and load-bearing columns in the environment
- D. The terminal distribution is relatively complete
Answer: A,B,C
NEW QUESTION 193
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. IACTP
- B. CAPWAP
- C. 802.11i
- D. 802.11e
Answer: C,D
NEW QUESTION 194
The following are not 802.11ax improvements to 802.11ac technology:
- A. Multi-User Operation Techniques: MU-MIMO and OFDMA
- B. Color code-based spatial multiplexing technology
- C. Introduced higher-order modulation technology, better power saving management (TWT)
- D. farther coverage
Answer: D
NEW QUESTION 195
What are the types of linear polarization directions of antennas?
- A. vertical or horizontal
- B. length or width
- C. left or right
- D. before or after
Answer: A
NEW QUESTION 196
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.
Answer: A
NEW QUESTION 197
If you run the "display wlan ap all" command on the AC to see that the AP repeatedly enters the image download state, the possible reasons are as follows:
- A. Software version without FIT AP on AC
- B. The FIT AP software version placed on the AC does not match the AC software version
- C. The serial number or model information of the Fit AP template on the AC is incorrectly configured
- D. There is not enough space on the FIT AP device to store the downloaded new software version
Answer: A,B,C,D
NEW QUESTION 198
The lightning rod is required to be high enough to protect all antennas on the tower or pole, and all outdoor facilities should be within the protection angle of the lightning rod.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 199
Which of the following is correct about the wireless controller license description
- A. Adding a new license to a V5 device takes effect without restarting
- B. V7 devices add a new license without restarting the device
- C. Adding a new license to a V5 device requires a reboot to take effect
- D. To add a new license to a V7 device, you need to restart the device
Answer: B,C
NEW QUESTION 200
On the horizontal plane pattern, on both sides of the maximum radiation direction, the angle between the two directions in which the radiated power drops ______ is called the horizontal beam width
- A. 1dB
- B. 6dB
- C. 3dB
- D. 10dB
Answer: C
NEW QUESTION 201
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. 1 , 6 , 11
- B. 1 , 2 , 3
- C. 1 , 5 , 9
- D. 2 , 7 , 12
Answer: A,D
NEW QUESTION 202
The WX3024 is divided into two control modules, which are the wireless control module and the switching module. The wireless control module and the switching module are connected through internal interfaces. The internal interface of the wireless control module is _____, and the internal interface of the switching module is _______
- A. GigabitEhternet1/0/2; GigabitEhternet1/0/29
- B. GigabitEhternet1/0/1; GigabitEhternet1/0/24
- C. GigabitEhternet1/0/1; GigabitEhternet1/0/29
- D. GigabitEhternet1/0/2; GigabitEhternet1/0/24
Answer: C
NEW QUESTION 203
The survey and design of the wireless network is a key link in the implementation of the WLAN project. A good survey and design scheme can
- A. Ensure the stable operation of the wireless network
- B. Improve the efficiency of equipment usage, thereby increasing customer ROI
- C. Reduce the maintenance workload of the wireless network
- D. Completely solve the problem of interference sources in wireless networks
Answer: A,B,C
NEW QUESTION 204
If the AP transmit power is 500mw, then the corresponding dbm value is
- A. 20dBm
- B. 16dBm
- C. 27dBm
- D. 23dBm
Answer: C
NEW QUESTION 205
The features supported by H3C Wireless Controller WX6000 series are ______ .
- A. Location-based access control
- B. Active and standby AC switchover services are not interrupted
- C. User-based permissions and bandwidth control
- D. ARP attack defense
- E. Smart Bandwidth Limit
- F. Supports Chinese WLAN security standard 802.11i
- G. N+1 backup and load sharing among ACs
Answer: A,B,C,D,E,F,G
NEW QUESTION 206
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. 40; 40; 30
- B. 50; 50; 40
- C. 20; 20; 15
- D. 64; 64; 48
Answer: C
NEW QUESTION 207
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