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Huawei H12-311-ENU Exam Syllabus Topics:
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NEW QUESTION 51
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. Currently the user is on the wired side of the AC.
- B. The user is currently on the wireless side of the AC.
- C. To achieve the relevant configuration of the WLAN, the user must first switch to the wireless side through CTRL+Y.
- D. According to the output, the AC6605 adopts the POE power supply module.
Answer: A,C
NEW QUESTION 52
What are the prerequisites for users to implement Layer 3 roaming (Select 3 Answers)?
- A. Two APs for user roaming switch must have the same VLAN
- B. The SSID released by the two APs of the user roaming switch must have the same authentication method.
- C. The two APs of the user roaming switch must have the same SSID.
- D. User roaming requires two AP signals to be covered with overlapping areas
Answer: B,C,D
NEW QUESTION 53
802.11b supports () channels in the United States, where one channel does not overlap?
- A. 14; 6
- B. 14;3
- C. 11;6
- D. 11;3
Answer: D
NEW QUESTION 54
Which channels in the 802.11b protocol do not overlap each other (Select 3 Answers)?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A,B,C
NEW QUESTION 55
The following is a description of the classification and function of Huawei AP. The following statement is correct (Select 3 Answers).
- A. AP6010SN and AP6010DN are indoor-mounted APs
- B. AP6610DN is a Gigabit fiber interface, so it cannot be directly connected to the AC6605.
- C. AP6310SN is an indoor distributed AP
- D. AP6510DN and AP6610DN are outdoor APs
Answer: A,C,D
NEW QUESTION 56
What is the command to check online users on the AC?
- A. display local-user
- B. display users all
- C. display user-interface console 0
- D. display access-user
Answer: D
NEW QUESTION 57
A point-to-point wireless bridge can be used to connect two networks that are located at different locations. In a wireless backbone connection, the Root AP and the Leaf AP should be set to different channels.
- A. True
- B. False
Answer: B
NEW QUESTION 58
The 802.11 protocol that defines the quality of service in WLAN is .
- A. 802.11n
- B. 802.11i
- C. 802.11f
- D. 802.11e
Answer: D
NEW QUESTION 59
For the antenna lobe width, which of the following description is correct? (Multiple choice)
- A. In the main lobe range, the power density decreases by half (3dB) relative to the maximum radiation direction.
- B. The narrower the lobes, the better the directionality, the farther the radiation distance, the stronger the anti-interference ability
- C. The pattern usually has two or more petals
- D. The terminal can receive the signal only within the half power angle coverage.
Answer: A,B,C
NEW QUESTION 60
The port of the CAPWAP protocol control channel is UDP5247, and the port of the data channel is UDP5246.
- A. True
- B. False
Answer: B
NEW QUESTION 61
Which of the following are factors that need to be considered for AP capacity planning (Select 3 Answers)
- A. Number of concurrent users
- B. Bandwidth requirements
- C. Power supply type
- D. Equipment performance
Answer: A,C,D
NEW QUESTION 62
Regarding the functional characteristics of the AP6010SN, the following statement is correct (Select 2 Answers).
- A. AP6010SN is an indoor distributed AP that only supports working in the 2.4GHz band.
- B. AP6010SN supports WDS function, which can realize point-to-point and point-to-multipoint wireless bridging
- C. The AP6010SN has an Ethernet interface that supports 802.3af PoE power supply standards.
- D. AP6010SN not only has built-in antenna, but also can be installed with an external antenna.
Answer: B,C
NEW QUESTION 63
Huawei AP can also implement AP-based load balancing in Fat AP mode.
- A. True
- B. False
Answer: B
NEW QUESTION 64
If a wireless client wants to connect to a WLAN through an AP, what does it connect to over the wireless network?
- A. BSID
- B. IBSS
- C. SSID
- D. BSA
Answer: C
NEW QUESTION 65
What are the mandatory standards for wireless LAN security in China?
- A. WiMAX
- B. WAPI
- C. WiFi
- D. WLAN
Answer: B
NEW QUESTION 66
How many channels do China support in 2.4 GHz frequency band?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 67
A 10-story building needs to cover the WLAN signal, because considering the floor blocking, the signal frequency of the 5th and 6th WLANs can be set to 6 channels at the same time.
- A. True
- B. False
Answer: B
NEW QUESTION 68
In the WDS deployment, which types of bridge networking modes are included (Select 3 Answers)?
- A. Point-to-point mode
- B. Point-to-multipoint mode
- C. Multi-point to multi-point mode
- D. Relay bridge mode
Answer: A,B,D
NEW QUESTION 69
Spread-spectrum technology is the basis for transmitting wireless data using the ISM band.
- A. False
- B. True
Answer: B
NEW QUESTION 70
Which of the following options are part of the 802.11b/g protocol (Select 3 Answers)?
- A. Different protocols use different technologies
- B. Different data rates supported
- C. Different working bands
- D. Different throughput capabilities
Answer: A,B,D
NEW QUESTION 71
The Int-Serv model provides users with end-to-end absolute QoS guarantees, but the reason for the lack of successful large-scale commercial use is.
- A. Low forwarding efficiency
- B. Poor scalability
- C. Not conducive to traffic regulation
- D. Limited bandwidth reservation
Answer: B
NEW QUESTION 72
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