Huawei H12-311 Online Practice Questions and Exam Preparation

Huawei H12-311 Online Questions & Answers

• Question 171:

  During passive scanning, wireless clients obtain information about surrounding wireless networks by receiving which type of frame?

  A. Beacon frame
  B. Probe Request frame
  C. Authentication frame
  D. Association Request frame
  A. Beacon frame

• Question 172:

  Which of the following protocols are IEEE 802.11 standards? (Choose three)

  A. 802.11a/b/g/n
  B. 802.11i
  C. 802.1X
  D. 802.11s
  A. 802.11a/b/g/n
  B. 802.11i
  D. 802.11s

• Question 173:

  Which of the following correctly describes a thin AP?

  A. Thin AP is also known as a wireless router.
  B. Thin AP is gradually replaced by fat AP due to lack of functionality.
  C. Thin AP cannot be configured separately and must be used with a wireless controller.
  D. Thin AP can implement 802.1X authentication, encryption, and other functions, while other functions such as QoS and roaming are implemented on the wireless controller.
  C. Thin AP cannot be configured separately and must be used with a wireless controller.

• Question 174:

  If a terminal supports both 5 GHz and 2.4 GHz bands, the AP can be configured to preferentially allow the terminal to access the 5 GHz band.

  A. True
  B. False
  A. True

• Question 175:

  Which of the following data rates are supported by 802.11a?

  A. 6, 12, 24, 54 Mbps
  B. 6, 9, 12, 18, 24, 36, 48, 54 Mbps
  C. 6, 12, 18, 24, 36, 48, 54 Mbps
  D. 6, 9, 12, 18, 24, 30, 36, 48, 54 Mbps
  B. 6, 9, 12, 18, 24, 36, 48, 54 Mbps

• Question 176:

  Which modulation method does the following picture represent?

  A. Amplitude modulation
  B. Frequency modulation
  C. Phase modulation
  D. Modulation
  B. Frequency modulation

• Question 177:

  FILL IN THE BLANK When collecting fault information, you need to collect device logs, including ___________ logs and ____________ logs.

  operation logs and alarm logs

• Question 178:

  FILL IN THE BLANK There are numerous methods to restart a device. For example, onsite maintenance personnel can perform a cold restart, while remote maintenance personnel can restart a device only in ___________ mode.

  warm restart

• Question 179:

  Which of the following statements about frequency planning are correct? (Choose two)

  A. In the 2.4 GHz band, channels 1, 6, and 11 are generally used as non-overlapping channels.
  B. There are generally 23 non-overlapping channels available in China at 5 GHz.
  C. Microwave interference can occur across the entire 2.4 GHz band.
  D. If the AP is dual-band, it is recommended to enable the 5 GHz priority function.
  A. In the 2.4 GHz band, channels 1, 6, and 11 are generally used as non-overlapping channels.
  D. If the AP is dual-band, it is recommended to enable the 5 GHz priority function.

• Question 180:

  The AC6605 box-type Huawei wireless controller supports 24 PoE interfaces. When connected to the WLAN, it can not directly supply power to the APs connected to the AC.

  A. True
  B. False
  B. False