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NEW QUESTION # 45
How many subcarriers can 802.11a use to transmit data in 20M mode?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 46
The following is an incorrect way to refer to AP access control (Select 2 Answers).
- A. If the AP access control adopts MAC authentication, the AP outside the MAC authentication list can also be online after being manually confirmed.
- 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. The configuration whitelist can be authenticated based on the MAC or authenticated based on the SN.
Answer: B,C
NEW QUESTION # 47
802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM) technology.
- A. False
- B. True
Answer: A
NEW QUESTION # 48
The following statement is correct (Select 3 Answers).
- A. WAPI is China's wireless LAN national standard system
- B. When the user obtains the IP address successfully, the user triggers the HTTP packet of the user. At this time, the user is forced to redirect to the portal server to perform the authentication process.
- C. WPA2 uses 802.1X authentication
- D. WPA2 PSK authentication requires the user to enter a username and password to connect
Answer: A,B,C
NEW QUESTION # 49
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: C
NEW QUESTION # 50
Which of the following options are EDCA parameters (Select 2 Answers)?
- A. SIFS
- B. TXOPLimit
- C. DIFS
- D. AIFSN
Answer: B,D
NEW QUESTION # 51
Which of the following options will cause users to not find a wireless network signal (Select 2 Answers)?
- A. The wireless controller is configured with user isolation
- B. AP is configured with 5G priority, resulting in 2.4G wireless client not searching for signals.
- C. User wireless network card driver is abnormal
- D. The user wireless network card is not enabled or the wireless network card hardware switch is not turned on.
Answer: C,D
NEW QUESTION # 52
20dBm is equivalent to mW.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 53
What is the parameter used in the 802.11 frame to check the integrity of the received frame?
- A. Frame Control
- B. FCS
- C. Sequence control bits
- D. Duration
Answer: B
NEW QUESTION # 54
The following statement about the region is correct (Select 3 Answers)?
- A. If you do not configure, all APs belong to region 0 by default.
- B. APs belonging to the same region will uniformly adjust the RF channel and power.
- C. AP region is laid in three types: dense placement, discrete deployment, and normal deployment.
- D. An AP can belong to two regions at the same time, so that roaming is more optimized.
Answer: A,B,C
NEW QUESTION # 55
When an 802.11 packet sent by a STA enters the Ethernet through the AP, it is converted into an 802.3 packet. Which of the following is not a priority mapping method?
- A. No priority mapping
- B. According to the order in which the packets arrive at the AP
- C. Set different priorities according to different VAPs
- D. Map to priority according to UP
Answer: B
NEW QUESTION # 56
Which of the following standards can support both the 2.4 GHz band and the 5 GHz band?
- A. 802.11a
- B. 802.11
- C. 802.11b
- D. 802.11ac
- E. 802.11n
- F. 802.11g
Answer: E
NEW QUESTION # 57
Which of the following commands can be configured to enter the WLAN view?
- A. [AC6605] wlan
- B. [AC6605] wlan-view
- C. <AC6605>wlan-view
- D. <AC6605> wlan
Answer: A
NEW QUESTION # 58
In the WDS networking, what is used to establish a bridge connection between two wireless APs?
- A. Equipment model
- B. MAC address
- C. IP address
- D. SSID
Answer: B
NEW QUESTION # 59
What is the recommended AC-ID for the Huawei wireless controller when configuring the WLAN service of the enterprise network?
- A. ctc (China Telecom)
- B. cuc (China Unicom)
- C. cmcc (China Mobile)
- D. other (Other)
Answer: A
NEW QUESTION # 60
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