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NEW QUESTION 47
On a WDS network, a root AP can connect to multiple leaf APs, but a leaf AP can connect to only one root AP.
- A. True
- B. False
Answer: A
NEW QUESTION 48
In the wireless network deployment scenario, when the AC is configured as "Layer 3 Networking + by hang Mode + Direct Forwarding", where can the wireless user's gateway be located? (Multiple choice)
- A. on AP
- B. On the one-arm router
- C. Convergence layer on the Layer 3 switch
- D. on AC
Answer: B,C,D
NEW QUESTION 49
When the channel interference of the 2.4 GHz band is large and severe, the device is adjusted to 3 channels, which can effectively reduce interference.
- A. False
- B. True
Answer: A
NEW QUESTION 50
Which of the following options is in the 5GHz band supported by China?
- A. 5.15~5.25GHz
- B. 5.725~5.825GHz
- C. 5.25~5.35GHz
- D. 5.725~5.850GHz
Answer: D
NEW QUESTION 51
Which country or region is ETSI a standard organization?
- A. Japan
- B. China
- C. United States
- D. Europe
Answer: D
NEW QUESTION 52
Which of the following channels are overlapping channels in WLAN 2.4 GHz band?
- A. 4 and 10
- B. 3 and 8
- C. 6 and 11
- D. 4 and 8
Answer: D
NEW QUESTION 53
According to the following output, the following statement is correct (Select 2 Answers).
<Quidway> display device
AC6605-26-PWR's Device status:
Slot Sub Type Online Power Register Status Role
0 - AC6605-26 Present PowerOn Registered Normal Master
POWER Present PowerOn Registered Normal NA
- A. To achieve the relevant configuration of the WLAN, the user must first switch to the wireless side through CTRL+Y.
- B. The user is currently on the wireless side of the AC.
- C. According to the output, the AC6605 adopts the POE power supply module.
- D. Currently the user is on the wired side of the AC.
Answer: A,D
NEW QUESTION 54
In point to multi-point network environment, one device is used as a center device, all other devices are only set up a wireless bridge with center device, implement multiple network interconnection. The disadvantage is that multiple branch network communication can process data forwarding through the center bridge device.
- A. True
- B. False
Answer: A
NEW QUESTION 55
Huawei's AP products can only support one SSID.
- A. False
- B. True
Answer: A
NEW QUESTION 56
For the polarization of the antenna, which of the following description is correct? (Multiple choice)
- A. If the electric field of the electric wave is perpendicular to the ground, we call it a vertically polarized wave.
- B. The polarization of the antenna refers to the direction of the magnetic field strength formed by the antenna radiation.
- C. If the transmitting antenna is circularly polarized, the receiving antenna must also be circularly polarized and the polarization directions of both must be the same.
- D. The antenna radiates electromagnetic waves to the surrounding space, and the direction of the electric field changes according to a certain law.
Answer: A,C,D
NEW QUESTION 57
With which of the following ways does the antenna get the gain?
- A. Using high efficiency antenna feeders
- B. Make the antenna radiation more concentrated
- C. Using a power amplifier in an antenna system
- D. Equipment using low standing wave ratio
Answer: B
NEW QUESTION 58
Which technology is below the wireless metropolitan area network?
- A. WLAN
- B. 2G/3G
- C. Bluetooth
- D. WiMAX
Answer: A
NEW QUESTION 59
The two commonly used units describing antenna gain are dBi and dBd, and the conversion relationship between them is: dBi=dBd+2.14.
- A. True
- B. False
Answer: A
NEW QUESTION 60
In an 802.11 frame, the terminal needs to obtain access rights to the wireless medium. Which control message need to be sent?
- A. PS-Poll
- B. CTS
- C. ACK
- D. RTS
Answer: D
NEW QUESTION 61
Which of the following technologies works at 5 GHz (Select 2 Answers)?
- A. Radar
- B. Digital Satellite
- C. Bluetooth
- D. Infrared
Answer: A,B
NEW QUESTION 62
Huawei AC controller AC6605 supports user access security management through security templates and supports WEP, WPA/WPA2, and WAPI security policies.
- A. True
- B. False
Answer: A
NEW QUESTION 63
Unlike the 802.11a/b/g standard, the 802.11n protocol is a dual-band mode of operation (supporting two operating bands of 2.4 GHz and 5 GHz).
- A. True
- B. False
Answer: A
NEW QUESTION 64
For outdoor long-distance point-to-point backhaul, the antenna of should be selected.
- A. High gain, small lobe width
- B. Omnidirectional
- C. Low gain, large lobe width
- D. High gain, large lobe width
Answer: A
NEW QUESTION 65
The correct statement about WDS is (Select 2 Answers)?
- A. Scalability is good, and there is no need to lay new wired connections and deploy more APs
- B. WDS uses the 2.4GHz band as the bridge frequency band by default.
- C. Connect two separate LAN segments through a wireless bridge and provide data transmission between them
- D. Huawei indoor AP does not support WDS function.
Answer: A,C
NEW QUESTION 66
What kind of technology belongs to Wireless MAN in the folllowing?
- A. 2G/3G
- B. WLAN
- C. Bluetooth
- D. WiMAX
Answer: A
NEW QUESTION 67
Assume that the transmit power of AP is 1mW, it is () dBm after converted to dBm.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 68
In terms of PoE, AP belong to which?
- A. PD
- B. PI
- C. PSU
- D. PSE
Answer: A
NEW QUESTION 69
For the CAPWAP protocol, the following description is wrong.
- A. Transmission protocol between thin AP and wireless client
- B. Developed by the CAPWAP Working Group The development of the
- C. Transmission protocol between AC and thin AP
- D. CAPWAP protocol draws on the useful features of other protocols.
Answer: A
NEW QUESTION 70
The omnidirectional antenna exhibits a degree of on the horizontal pattern.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 71
In WLAN, the AP has been working in a half-duplex state.
- A. True
- B. False
Answer: A
NEW QUESTION 72
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