[Mar-2022] Huawei H12-311-ENU Exam: Basic Questions With Answers
New 2022 Realistic Free Huawei H12-311-ENU Exam Dump Questions and Answer
NEW QUESTION 45
What technology does 802.11n support for antenna multiplexing?
- A. Multiple antenna scan output
- B. Short GI
- C. Spatial coding
- D. MIMO
Answer: D
NEW QUESTION 46
Wireless client passive scanning is obtained by receiving what frames to get the wireless network information around?
- A. Probe Request frame
- B. Association Request frame
- C. Authentication frame
- D. Beacon frame
Answer: D
NEW QUESTION 47
When the channel interference of the 2.4 GHz band is large and severe, the device is adjusted to 3 channels, which can effectively reduce interference.
- A. False
- B. True
Answer: A
NEW QUESTION 48
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. pass through.pass through
- C. not pass through, not pass through
- D. not pass through, pass through
Answer: D
NEW QUESTION 49
The following is an incorrect way to refer to AP access control (Select 2 Answers).
- A. The configuration whitelist can be authenticated based on the MAC or authenticated based on the SN.
- B. By default, the access control mode of the AP to the AC is not authenticated.
- C. By configuring the AP in the offline state, authentication is required to automatically access the AP.
- D. If the AP access control adopts MAC authentication, the AP outside the MAC authentication list can also be online after being manually confirmed.
Answer: B,C
NEW QUESTION 50
What are the mandatory standards for wireless LAN security in China?
- A. WLAN
- B. WAPI
- C. WiMAX
- D. WiFi
Answer: B
NEW QUESTION 51
The AP can provide power and data transmission through the POE switch.
- A. True
- B. False
Answer: A
NEW QUESTION 52
How many wireless AP are there in a BSS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 53
In the WDS peer-to-peer network, the backbone link between the Root AP and the Leaf AP is connected in the 5 GHz band. The bandwidth used by the Root AP is 149.
Which of the following bands should the Leaf AP use?
- A. Except for 149
- B. 0
- C. 1
- D. 2
Answer: D
NEW QUESTION 54
As shown as the following WLAN networking diagrams, which does belong to AC side-by-side and data direct forwarding mode?
- A.
- B.
- C.
- D.
Answer: D
NEW QUESTION 55
Engineer A used many utilize used equipment APs during the project rectification process. It was found that some APs could go online, and some APs could not go online. Which of the following descriptions are correct? (Multiple Choice)
- A. AP authentication mode is no-auth. If the AP is not online, it is likely that the AP itself is faulty.
- B. AP authentication mode is no-auth. Since the batch AP is utilize used equipment AP, the AP that can go online may have been online on this AC.
- C. AP authentication method is sn-auth. Since the batch AP is utilize used equipment AP, the AP that can go online may be online on this AC.
- D. AP authentication mode is mac-auth. Since the batch AP is utilize used equipment AP, the AP that can go online may be online on this AC.
Answer: A,C,D
NEW QUESTION 56
The following is a description of TKIP encryption. The error is .
- A. TKIP encryption uses the same encryption algorithm as WEP encryption.
- B. The motivation for developing TKIP encryption is to upgrade the security of legacy WEP hardware. Added the mechanism of key generation, management and delivery in
- C. The length of the IV used in A.TKIP encryption is 24bits.
- D. TKIP encryption.
Answer: C
NEW QUESTION 57
What are the prerequisites for users to achieve three-layer roaming? (Multiple choice)
- A. Two APs for user roaming switch must have the same SSID
- B. The SSID released by the two APs of the user roaming switch must have the same authentication method.
- C. Two APs for user roaming switch must have the same VLAN
- D. User roaming requires two AP signals to be covered with overlapping areas
Answer: A,B,D
NEW QUESTION 58
The 802.11 physical layer standard defines some common operations of the wireless network at the physical layer: operations such as QoS, security, and roaming.
- A. False
- B. True
Answer: A
NEW QUESTION 59
WDS technology increases the flexibility and convenience of the entire network structure, but only supports peer-to-peer mode of operation.
- A. False
- B. True
Answer: A
NEW QUESTION 60
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Huawei H12-311-ENU Exam Syllabus Topics:
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