[Feb 03, 2022] Valid H12-311-ENU Test Answers & Huawei H12-311-ENU Exam PDF
Realistic H12-311-ENU Exam Dumps with Accurate & Updated Questions
Huawei H12-311-ENU Exam Syllabus Topics:
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| Topic 2 |
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| Topic 3 |
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NEW QUESTION 88
The two bands of an AP that implements spectrum navigation must use the same SSID and security policy.
- A. True
- B. False
Answer: A
NEW QUESTION 89
MIMO antenna configuration is usually expressed as "M * N", what M and N each means? (Multiple choice)
- A. N means the number of transmitting antennas
- B. M means the number of transmitting antennas
- C. M means the number of receiving antennas
- D. N means the number of receiving antennas
Answer: B,D
NEW QUESTION 90
In an 802.11 frame, the terminal needs to obtain access rights to the wireless medium. Which control message need to be sent?
- A. CTS
- B. RTS
- C. ACK
- D. PS-Poll
Answer: B
NEW QUESTION 91
Which of the following options is not the main purpose of roaming?
- A. avoid roaming in the process of certification time is too long lead to packet loss and even business interruption
- B. ensure that the user's network rate unchanged
- C. ensure that the user IP address remains the same
- D. ensure that the user authorization information remains the same
Answer: B
NEW QUESTION 92
There are four wireless STAs.
Which workstations occupy the channel preferentially according to the following backoff time parameters?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 93
How many wireless AP are there in a BSS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 94
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 95
What is the working frequency band used in the original 802.11 protocol?
- A. 5 GHz
- B. 2.0 GHz
- C. 900 MHz
- D. 2.4 GHz
Answer: D
NEW QUESTION 96
What is the radio physical layer technology used by 802.11ac?
- A. DSSS
- B. FHSS
- C. QAM
- D. OFDM
Answer: D
NEW QUESTION 97
The size of the coverage area of the AP is controlled by means (Select 2 Answers).
- A. Adjusting the power supply of the AP
- B. Adjusting the access bandwidth of the AP
- C. Adjust the angle of the AP antenna
- D. Adjust the transmit power of the AP
Answer: C,D
NEW QUESTION 98
If the configuration parameters of the AP radio are changed, the AP must be restarted before the command takes effect.
- A. True
- B. False
Answer: B
NEW QUESTION 99
The following is true for WLAN networking configuration (Select 3 Answers).
- A. Configure the WMM template to be directly bound to the antenna.
- B. The user should try to ensure the detailed planning data when performing data planning, which will greatly facilitate the later configuration.
- C. WMM template is bound to the radio template.
- D. Before the AP is configured, the AP must be online.
Answer: B,C,D
NEW QUESTION 100
Which of the following transfer rates is not supported by 802.11g?
- A. 54Mbps
- B. 9Mbps
- C. 12Mbps
- D. 65Mbps
Answer: D
NEW QUESTION 101
Which of the following protocols can support both the 2.4 GHz band and the 5 GHz band?
- A. 802.11g
- B. 802.11n
- C. 802.11b
- D. 802.11a
Answer: B
NEW QUESTION 102
What is the operating frequency set by China in the 2.4 GHz band?
- A. 2.4465 GHz-2.4835 GHz
- B. 2.4 GHz-2.4835 GHz
- C. 2.471 GHz-2.497 GHz
- D. 2.445 GHz-2.475 GHz
Answer: B
NEW QUESTION 103
A company wants to deploy WLAN. The company has purchased a number of wireless APs that support 802.11n. When the WLAN is deployed, only 802.11n wireless clients can connect to the company's WLAN.
- A. True
- B. False
Answer: B
NEW QUESTION 104
When an 802.11 packet sent by a STA enters the Ethernet through the AP, it is converted into an 802.3 packet, which is not a priority mapping method.
- A. According to the order in which the packets arrive at the AP
- B. Different priorities according to different VAP settings
- C. Map the priorities according to UP.
- D. No priority mapping
Answer: A
NEW QUESTION 105
The networking mode can be divided into direct-connected networking and side-hanging networking based on the location of the AC on the network.
- A. True
- B. False
Answer: A
NEW QUESTION 106
The networking mode can be divided into a Layer 2 networking mode and a Layer 3 networking mode based on the network architecture between the AP and the AC.
- A. True
- B. False
Answer: A
NEW QUESTION 107
Which of the following is included in the 802.11n MAC layer improvement technology (Select 2 Answers)?
- A. MIMO technology
- B. Frame aggregation technology
- C. Beamforming technology
- D. Block confirmation technology
Answer: B,D
NEW QUESTION 108
According to the following output, the following statement is correct (Select 3 Answers).
<Quidway> display version
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.70 (AC6605 V200R001C00)
Copyright (C) 2003-2012 Huawei TECH CO., LTD
Quidway AC6605-PWR Routing Switch uptime is 0 week, 1 day, 23 hours, 33 minutes
H852V26S 0(Master) : uptime is 0 week, 1 day, 23 hours, 33 minutes
512M bytes DDR Memory
128M bytes FLASH
Check the running status of the AC6605.
- A. The total flash size of the device is 128 Mbytes.
- B. display version can see that the VRP version number of today's devices is 5.70.
- C. The equipment has been running continuously for 1 day, 23 hours and 33 minutes.
- D. Currently the device has used 512 Mbytes of system memory.
Answer: A,B,C
NEW QUESTION 109
The upgrade operation of the Huawei wireless controller AC6605 can only be performed on the wired side of the controller.
- A. True
- B. False
Answer: A
NEW QUESTION 110
Which is the following statement is correct about the introduction of WLAN frequency planning? (Multiple Choice)
- A. 5GHz in China generally have 23 non-overlapping channels available
- B. If the AP is dual-band, it is recommended to use 5G priority function
- C. 2.4GHz general use 1,6,11 three non-overlapping channels for coverage
- D. microwave interference will occur in the 2.4GHz frequency band full
Answer: B,C
NEW QUESTION 111
During the implementation of the project, the engineer A deployed a large number of APs. After the configuration was completed, it was found that all APs could not go online and asked the engineer B for help. After the engineer B found that the engineer A did not configure the AC source address, which of the following commands can be quickly located if AC configure the AC source address?
- A. display ap global configuration
- B. display current-configuration
- C. display capwap status
- D. display capwap configuration
Answer: D
NEW QUESTION 112
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