Latest [Jan 09, 2022] Realistic Verified H12-311-ENU Dumps
Pass Huawei H12-311-ENU Exam Updated 300 Questions
NEW QUESTION 78
AAA is a management framework that is implemented using more common protocols.
- A. RADIUS
- B. 802.1X
- C. CAPWAP
- D. 802.11a/b/g/n
Answer: A
NEW QUESTION 79
An engineer received a customer complaint, the signal in the room was not good. The engineer suspected that the channel interference was serious. Use the following command to view the AP RF information in the room and get the following output. Which of the following statement is wrong?
[[AC6605] display radio ap-id 0
CH/BW: Channel/Bandwidth
CE: Current EIRP (dBm)
ME: Max EIRP (dBm)
CU: Channel utilization
---------------------------------------------------------------------------------------------------------------
AP ID Name RfID Band Type Status CH/BW CE/ME STA CU
0 ap-2 0 2.4G bgn on 1/20M 27/27 0 31%
0 ap-2 0 5G an on 149/20M 28/28 0 2%
---------------------------------------------------------------------------------------------------------------
Total: 2
- A. The current channel of the AP in the 2.4G band is 1, and the channel in the 5G band is 149.
- B. AP can support 802.11ac because the AP supports the 5G band.
- C. AP has two RF ports.
- D. The ap-id of the AP is 0.
Answer: B
NEW QUESTION 80
Which of the following AP modes does not belong to the WDS network?
- A. Bridge AP
- B. Middle AP
- C. Leaf AP
- D. Root AP
Answer: A
NEW QUESTION 81
How many channels does China support in the 2.4 GHz band?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 82
If an enterprise wireless network networking mode is direct forwarding, the thin AP can convert the 802.11 data packet into an Ethernet packet, and then encapsulate the packet into a CAPWAP encapsulation and transmit the data packet to the AC through the CAPWAP tunnel.
- A. False
- B. True
Answer: A
NEW QUESTION 83
For a wireless network with WPA2 PSK authentication and SSID broadcast, the user can double-click on the SSID and enter the correct username and password to access the network.
- A. False
- B. True
Answer: A
NEW QUESTION 84
Which is the longest interval between 802.11 frames?
- A. DIFS
- B. PIFS
- C. IFS
- D. SIFS
Answer: A
NEW QUESTION 85
Which of the following is included in the 802.11n MAC layer improvement technology (Select 2 Answers)?
- A. Block confirmation technology
- B. Frame aggregation technology
- C. MIMO technology
- D. Beamforming technology
Answer: A,B
NEW QUESTION 86
The following statement about the region is correct (Select 3 Answers)?
- A. If you do not configure, all APs belong to region 0 by default.
- B. An AP can belong to two regions at the same time, so that roaming is more optimized.
- C. AP region is laid in three types: dense placement, discrete deployment, and normal deployment.
- D. APs belonging to the same region will uniformly adjust the RF channel and power.
Answer: A,C,D
NEW QUESTION 87
Which the following content are included in 802.11n MAC layer technology improvement? (Multiple choice)
- A. Piece of technology
- B. Frame Polymerization
- C. MIMO Technology
- D. Beamforming
Answer: A,B
NEW QUESTION 88
Which of the following are the Huawei AC load balancing judgment method? (Multiple Choice)
- A. AP power consumption mode
- B. Virtual switching method
- C. Traffic mode
- D. Session mode
Answer: C,D
NEW QUESTION 89
What are the reasons why APs cannot go online (Select 3 Answers)?
- A. The AP uses static discovery but the IP address of the AC is incorrect. The version of
- B. AP is inconsistent with the version of AC.
- C. The controller adopts no-auth authentication mode.
- D. The configuration of the DHCP address pool is incorrect. The AP cannot obtain the address.
Answer: A,B,D
NEW QUESTION 90
802.11n is faster than 802.11g, what are the main reasons? (Multiple choice)
- A. More channels
- B. More subcarriers
- C. Wider channel
- D. Shorter GI
- E. More spatial streams
- F. Higher coding ratio
Answer: B,C,D,E,F
NEW QUESTION 91
The antenna has a power amplification function.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 92
Which of the following are common sources of WLAN interference? (Multiple choice)
- A. Microwave oven
- B. Cordless phone
- C. Remote control
- D. Bluetooth transmission equipment
Answer: A,B,D
NEW QUESTION 93
When configuring a WLAN network, which template should the domain management template be bound to?
- A. security-profile
- B. vap-profile
- C. traffic-profile
- D. radio-profile
Answer: B
NEW QUESTION 94
Which of the following features (BCD) (Select 3 Answers) is available for the Huawei WLAN Planning Tool.
- A. Support automatic deployment of AP location
- B. Support automatic identification and identification of obstacles
- C. Support common coverage area and key coverage area division
- D. Support WLAN planning report for export specification
Answer: A,C,D
NEW QUESTION 95
Which of the following two are PoE's power supply standards (Select 2 Answers)?
- A. IEEE 802.3ae
- B. IEEE 802.3as
- C. IEEE 802.3af
- D. IEEE 802.3at
Answer: C,D
NEW QUESTION 96
In 1999, the IEEE 802.11a standard was developed. The standard specifies that the WLAN operating frequency band is 5.15~5.825GHz, and the data transmission rate reaches 11Mbps.
- A. False
- B. True
Answer: A
NEW QUESTION 97
Use the display ap all command to view the MAC, type, and running status of an AP.
- A. True
- B. False
Answer: A
NEW QUESTION 98
Which of the following description is correct about shared key authentication? (Multiple Choice)
- A. After using shared key authentication, WEP encryption must be used.
- B. For Fit AP, the shared key is preset in the AC.
- C. The disadvantage of shared key is that it is not scalable and not very secure.
- D. Shared key requires the user and AP to use the same shared key
Answer: A,C,D
NEW QUESTION 99
In the 802.11 frame, what is the value of To DS and From DS when the wireless station sends a signal to the wireless AP?
- A. 0,0
- B. 1,1
- C. 0,1
- D. 1,0
Answer: D
NEW QUESTION 100
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