Huawei H12-311_V3.0 Dumps Questions [2022] Pass for H12-311_V3.0 Exam
Updated Huawei Study Guide H12-311_V3.0 Dumps Questions
NEW QUESTION 151
802.11 In the frame, Frame Control In position Type What is the correct correspondence with the frame format ()?
- A. Type for 10 Time represents control frame
- B. Type for 00 Time represents management
- C. Type for 00 Indicates reserved use
- D. Type for 01 Time represents data frame
Answer: B
NEW QUESTION 152
AP What are the reasons for being unable to go online ()?
(Select 3 Answers)
- A. AP Use static discovery, but AC of IP Configuration error
- B. The controller uses no-auth Authentication mode
- C. DHCP Incorrect address pool configuration AP Unable to get address
- D. AP Version with AC Inconsistent versions
Answer: A,C,D
NEW QUESTION 153
exist WLAN middle ACK What type of frame() does the frame belong to?
- A. Empty data frame
- B. Control frame
- C. Data Frame
- D. Management frame
Answer: B
NEW QUESTION 154
Which of the following protocols can support at the same time 2.4GHz Frequency band and 5GHz Frequency band()?
- A. 802.11b
- B. 802.11a
- C. 802.11g
- D. 802.11n
Answer: D
NEW QUESTION 155
for AC6605 , The following command () can be used to view AP Is it online?
- A. display ap online all
- B. dispay ap-run-info all
- C. display ap-type all
- D. display ap all
Answer: D
NEW QUESTION 156
The omnidirectional antenna appears on the horizontal pattern as ()Spend.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 157
Regarding the networking mode, the following description is correct ().
- A. Compared with the three-layer network, the two-layer network is more suitable for large-scale networks such as parks and stadiums.
- B. In a direct-connected network, AP Business data can not go through AC And directly reach the upstream network
- C. if AC The ability to process data is relatively weak, it is recommended to use bypass networking
- D. The advantage of the three-layer network is simple configuration and easy networking
Answer: C
NEW QUESTION 158
Which of the following standards organizations implements WLAN technical interoperability for WLAN equipment certification ()?
- A. IEEE
- B. IETF
- C. WiFi
- D. FCC
Answer: C
NEW QUESTION 159
802.11a What kind of technology is used to implement the agreement?
- A. FHSS
- B. OFDM
- C. MIMO
- D. DSSS
Answer: B
NEW QUESTION 160
Single area WLAN When planning, influence AP The factors of the number of deployment are ().
(Select 3 Answers)
- A. Area size
- B. Number of people connected in the area
- C. Field strength and bandwidth requirements
- D. Number of network ports
Answer: A,B,C
NEW QUESTION 161
The index used to describe the degree of antenna convergence of the transmit power is (
- A. Gain
). - B. polarity
- C. power
- D. Broadband
Answer: A
NEW QUESTION 162
802.11g What is the bandwidth of each channel of the frequency band ()?
- A. 22 MHz
- B. 50 MHz
- C. 25 MHz
- D. 20 MHz
Answer: D
NEW QUESTION 163
Spread spectrum ( spread-spectrum ) Technology is to use ISM The basis of frequency band transmission of wireless data.
- A. True
- B. False
Answer: A
NEW QUESTION 164
pass through FTP Way to upgrade AP, You need to ensure AP and FTP Servers can communicate with each other, and AP Put the upgrade file in FTP Root directory.
- A. True
- B. False
Answer: A
NEW QUESTION 165
SSID What is the Chinese name of ()?
- A. Basic service set
- B. Service set ID
- C. Basic service area
- D. Extended service set
Answer: B
NEW QUESTION 166
For the choice of WLAN coverage antennas, it is recommended to choose () for long and narrow areas, and () for wide and short-distance areas.
- A. Directional antenna; omnidirectional antenna
- B. Omnidirectional antenna; Omnidirectional antenna
- C. Omnidirectional antenna; directional antenna
- D. Directional antenna; Directional antenna
Answer: A
NEW QUESTION 167
The equipment manufacturer can usually be judged according to the following ().
- A. SSID
- B. MAC address
- C. channel
- D. Encryption type
Answer: B
NEW QUESTION 168
PPPoE Certified in WLAN When used, and WLAN The authentication encryption used by itself does not matter.
- A. True
- B. False
Answer: B
NEW QUESTION 169
IEEE 802.11 The standard used to define roaming is ().
- A. IEEE 802.11h
- B. IEEE 802.11c
- C. IEEE 802.11r
- D. IEEE 802.11j
Answer: C
NEW QUESTION 170
Which of the following statements is correct ()?
(Select 2 Answers)
- A. When the user performs web authentication, it is triggered by the user's http message after successfully obtaining the IP address; at this time, it is forcibly redirected to the portal server, Go through the certification process
- B. WPA only supports TKIP, an encryption technology
- C. WPA2 uses 802.1X authentication
- D. When the user performs web authentication, it is triggered by the user's http message before the IP address is successfully obtained; at this time, it is forcibly redirected to the portal server, Go through the certification process
Answer: A,C
NEW QUESTION 171
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