Free Huawei H12-311-ENU Study Guides Exam Questions and Answer
H12-311-ENU Exam Dumps, H12-311-ENU Practice Test Questions
NEW QUESTION 51
The user authentication-based security policy that is currently used extensively in enterprise networks is (Select 2 Answers).
- A. WPA2 802.1X+TKIP/CCMP
- B. WPA2 PSK+TKIP/CCMP
- C. WPA1 PSK+TKIP/CCMP
- D. WPA1 802.1X+TKIP/CCMP
Answer: A,D
NEW QUESTION 52
What are the diagnostic commands commonly used in WLAN networks? (Multiple Choice)
- A. Show
- B. Ping
- C. Display
- D. Trace
Answer: A,B,C,D
NEW QUESTION 53
802.11 has three frame types, what are they? (Multiple choice)
- A. Data frame
- B. Control frame
- C. Business frame
- D. Management frame
Answer: A,B,D
NEW QUESTION 54
Which of the following options belong to the differences between 802.11b/g protocol? (Multiple choice)
- A. work of different frequency bands
- B. support different data rates
- C. two protocols use different technology
- D. different capacity
Answer: B,C,D
NEW QUESTION 55
WIDS attack detection includes (Select 3 Answers).
- A. Microwave interference detection
- B. Flood attack detection
- C. Spoof attack detection
- D. Weak IV attack detection
Answer: B,C,D
NEW QUESTION 56
Which of the following is the command to restart the AC6605?
- A. [ Quidway] reboot
- B. <Quidway> reload
- C. [Quidway]reload
- D. <Quidway> reboot
Answer: D
NEW QUESTION 57
In the outdoor deployment of WLAN, to prevent obstacles from interfering, just ensure that the antenna height is higher than the obstacle.
- A. True
- B. False
Answer: B
NEW QUESTION 58
What are the general methods for solving co-channel interference (ABD) (Select 3 Answers).
- A. Adjust AP transmit power and adjust antenna feed
- B. Natural isolation using obstacles
- C. Multi-directional coverage using omnidirectional antennas
- D. Reasonable frequency reuse to ensure that the same channel does not appear in the same or adjacent coverage area
Answer: A,B,D
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. False
- B. True
Answer: B
NEW QUESTION 60
In the following options, ( ) is the cause of priority access using 5G.
- A. 5G band of users connected to the AP quickly
- B. 5G band can provide better access to power and capacity
- C. more easily under 5G band for network planning
- D. 5G band transmission rate is higher than 2.4 G band
Answer: B
NEW QUESTION 61
The power of the indoor AP is generally mW.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 62
In the WLAN configuration, how many types that related to VLAN? (Multiple choice)
- A. service VLAN
- B. User VLAN
- C. certify VLAN
- D. manage VLAN
Answer: A,B,D
NEW QUESTION 63
Which of the following rates is not the rate supported by the 802.11a protocol?
- A. 24Mbps
- B. 30Mbps
- C. 6Mbps
- D. 12Mbps
Answer: B
NEW QUESTION 64
In 1999, the IEEE 802.11a standard was developed. The standard specifies that the WLAN operating frequency band is 5.15 to 5.825 GHz, and the data transmission rate reaches 11 Mbps.
- A. True
- B. False
Answer: B
NEW QUESTION 65
If a BSS is composed entirely of STAs, what is the BSS also called?
- A. ESS
- B. SSID
- C. IBSS
- D. BSA
Answer: C
NEW QUESTION 66
What are the WLAN operating bands (Select 2 Answers)?
- A. 2 GHz
- B. 5 GHz
- C. 2.4 GHz
- D. 5.4 GHz
Answer: B,C
NEW QUESTION 67
WDS technology increases the flexibility and convenience of the entire network structure, but only supports peer-to-peer mode of operation.
- A. True
- B. False
Answer: B
NEW QUESTION 68
If the AP wants to obtain the IP address of the AC through the DNS server, first obtain the IP address of its own IP address, DHCP server, and DNS.
- A. False
- B. True
Answer: B
NEW QUESTION 69
Which of the following description about Fit AP is correct?
- A. Fit AP can implement 802.1X authentication, encryption and other functions. Others such as QoS and roaming functions are implemented on the wireless controller.
- B. Fit AP is gradually being replaced by fat AP due to its long absence.
- C. Fit AP cannot be used alone and must be used with the wireless controller
- D. Fit AP is also known as a wireless router.
Answer: C
NEW QUESTION 70
How many wireless AP are there in a BSS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 71
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