[2021] H12-311-ENU PDF Questions - Perfect Prospect To Go With Prep4pass Practice Exam
Huawei H12-311-ENU Pdf Questions - Outstanding Practice To your Exam
NEW QUESTION 56
When the AC is a side-by-side networking, if the data is directly forwarded, the data stream ( ) AC; if the data is in tunnel forwarding mode, the data stream ( ) AC.
- A. pass through, not pass through
- B. not pass through, pass through
- C. pass through.pass through
- D. not pass through, not pass through
Answer: B
NEW QUESTION 57
Mesh networking is defined in which of the following 802.11 protocol standard?
- A. 802.11g
- B. 802.11e
- C. 802.11s
- D. 802.11a
Answer: C
NEW QUESTION 58
In a dual-link backup network, what do the APs use to distinguish between the primary AC and the standby AC (Select 3 Answers)?
- A. Priority
- B. AC response AP time
- C. AC IP address
- D. AC load situation
Answer: A,C,D
NEW QUESTION 59
Three APs are deployed on the first floor of a building. The channels from left to right are 1, 6, and 11, respectively. The channels of the three APs deployed on the second floor should be divided into () from left to right.
- A. 11 、 6 、 1
- B. 6 、 11 、 1
- C. 1 、 6 、 11
- D. 2 、 7 、 12
Answer: B
NEW QUESTION 60
The AC performs a load balancing process based on the information.
- A. AC periodically queries the number of STAs associated with an AP.
- B. STA periodically searches for the AP information and reports the AP ID through the associated AP.
- C. The AP periodically sends information about the STA associated with it to the AC.
- D. STA periodically reports the currently associated AP ID.
Answer: D
NEW QUESTION 61
Which of the following devices are Huawei Wireless Dual Access AP (Access Point) (Select 2 Answers)?
- A. AP6010DN
- B. AP5010SN
- C. AP6010SN
- D. AP5010DN
Answer: A,D
NEW QUESTION 62
Which of the following description for PSK certification is correct? (Multiple Choice)
- A. PSK certification need to configure the same pre-shared key in the wireless client and equipment client
- B. PSK certification is through four handshake Key negotiation to verify the legitimacy of the STA side Key
- C. WPA and WPA2 are both support PSK certification
- D. The process of PSK certification is like the process of shared-key authentication, so the same safety
Answer: A,B,C
NEW QUESTION 63
For outdoor WLAN coverage, the following statement is correct (Select 3 Answers).
- A. The feeder interface must match the selected antenna
- B. Outdoor antennas should not blindly pursue high gain
- C. The length of the feeder must not exceed 2 meters.
- D. The higher the antenna gain, the stronger the antenna directivity and the weaker the radiation gain directly below the antenna.
Answer: A,B,D
NEW QUESTION 64
Huawei Plug-in Controllers Which series of switches (Select 3 Answers) are available for Huawei ACU boards?
- A. S7700 series switches
- B. S9300 series switches
- C. S9700 series switches
- D. S5700 series switches
Answer: A,B,C
NEW QUESTION 65
Which kinds of modulation mode does below figure belong to?
- A. SM
- B. PM
- C. AM
- D. FM
Answer: C
NEW QUESTION 66
An infrastructure-mode network consisting of multiple APs and distributed systems that connect them, also known as what?
- A. Basic service set
- B. Basic service area
- C. Extended service area
- D. Extended service set
Answer: D
NEW QUESTION 67
The following statement about antenna classification is correct (Select 2 Answers)?
- A. Classification by use: short wave antenna, ultrashort wave antenna, microwave antenna, etc.
- B. Classification by direction: omnidirectional antenna, directional antenna, etc.
- C. Classification by shape: wire antenna, planar antenna, etc.
- D. Classification by working frequency band: communication antenna, TV antenna, radar antenna, etc.
Answer: B,C
NEW QUESTION 68
MIMO (Multiple input and Multiple output), that is, Multiple input Multiple output, using 802.11n wireless access point and the client can use the three most space flow transmit data at the same time, the theory of rate biggest can reach 600 MBPS.
- A. True
- B. False
Answer: B
NEW QUESTION 69
Huawei AP6310AP is an outdoor AP that supports WDS and implements point-to-multipoint wireless bridging.
- A. True
- B. False
Answer: B
NEW QUESTION 70
In the 802.1X protocol, you must have the ability to authenticate and authorize users (Select 3 Answers).
- A. authentication server
- B. certifier
- C. eSight server
- D. client
Answer: A,B,D
NEW QUESTION 71
What are the rates that 802.11a can support?
- A. 6,9,12,18,24,36,48,54 Mbps
- B. 6,9,12,18,24,30,36,48,54 Mbps
- C. 6,12,18,24,36,48,54 Mbps
- D. 6,12,24,54 Mbps
Answer: A
NEW QUESTION 72
The power of the indoor AP is generally mW.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 73
Which is the longest interval of 802.11 interframe?
- A. SIFS
- B. DIFS
- C. PIFS
- D. IFS
Answer: B
NEW QUESTION 74
Which of the following transfer rates is not supported by 802.11g?
- A. 54Mbps
- B. 9Mbps
- C. 12Mbps
- D. 65Mbps
Answer: D
NEW QUESTION 75
Rural households can use the outdoor AP+CPE network of the base station to convert the WLAN signal into a wired signal to connect to the computer and support dial-up access.
- A. True
- B. False
Answer: A
NEW QUESTION 76
Which of the following statements are correct? (Multiple Choice)
- A. WPA2 adopted authentication of 802.1X
- B. WPA only support TKIP encryption technology
- C. When the user is in the process of web authentication, which is before obtaining IP address successfully, triggered by the user's HTTP message; at this time, forced to redirect to the portal server, carries on the authentication process
- D. When the user is in the process of web authentication, which is after obtaining IP address successfully, triggered by the user's HTTP message; at this time, forced to redirect to the portal server, carries on the authentication process
Answer: A,D
NEW QUESTION 77
What is the correct description of the thin AP below?
- A. Thin AP can implement 802.1X authentication, encryption and other functions. Others such as QoS and roaming functions are implemented on the wireless controller.
- B. Thin AP is also known as a wireless router.
- C. Thin AP is gradually replaced by fat AP due to lack of function.
- D. Thin AP cannot be configured separately and must be used with the wireless controller.
Answer: D
NEW QUESTION 78
The lobe width is a very important parameter commonly used in directional antennas. It refers to the angle between the antenna and the radiation pattern below the peak dB The width.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 79
There are three types of Huawei load balancing judgment: traffic mode, session mode, and virtual switch mode.
- A. True
- B. False
Answer: B
NEW QUESTION 80
Among the following options, is the reason for using 5G priority access.
- A. 5G frequency band. The transmission rate of the
- B. 5G frequency band is easier to network planning
- C. 5G frequency band is higher than the 2.4G frequency band.
- D. 5G frequency band can provide better access capacity and capacity. The connection speed between the user and the AP is fast in the
Answer: D
NEW QUESTION 81
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