Huawei H12-311 Online Practice Questions and Exam Preparation

Huawei H12-311 Online Questions & Answers

• Question 21:

  Which statement about PSK authentication is incorrect?

  A. PSK authentication requires the same pre-shared key to be configured on the wireless client and the device side.
  B. WPA and WPA2 support PSK authentication.
  C. The PSK authentication process is similar to the shared key authentication process, so the security is the same.
  D. PSK authentication verifies the legitimacy of the STA side key through 4-way handshake key negotiation.
  A. PSK authentication requires the same pre-shared key to be configured on the wireless client and the device side.

• Question 22:

  Basic service sets (BSSs) are the fundamental units of a WLAN.

  A. True
  B. False
  A. True

• Question 23:

  If the configuration parameters of the AP radio are changed, the AP must be restarted before the command takes effect.

  A. True
  B. False
  B. False

• Question 24:

  Which of the following are upgrade modes for Huawei Wireless APs? (Choose two)

  A. AC Download
  B. FTP server download
  C. Preloaded on the AP
  D. BAS download
  A. AC Download
  B. FTP server download

• Question 25:

  What is the operating frequency range used in China for the 2.4 GHz band?

  A. 2.400 GHz?.4835 GHz
  B. 2.471 GHz?.497 GHz
  C. 2.4465 GHz?.4835 GHz
  D. 2.445 GHz?.475 GHz
  A. 2.400 GHz?.4835 GHz

• Question 26:

  Which of the following are basic functions when configuring Huawei wireless controllers? (Choose three)

  A. Configure AC-ID
  B. Configure Radio template
  C. Configure AC country code
  D. Configure AC WLAN source interface
  A. Configure AC-ID
  C. Configure AC country code
  D. Configure AC WLAN source interface

• Question 27:

  Among the following encryption methods, which provides the best security?

  A. Clear text encryption
  B. WEP encryption
  C. TKIP encryption
  D. CCMP encryption
  D. CCMP encryption

• Question 28:

  To facilitate management and maintenance, which AP power supply mode is generally preferred?

  A. ndependent power adapter
  B. PoE switch
  C. PoE adapter
  D. AC power supply
  B. PoE switch

• Question 29:

  Which of the following technologies are included in the 802.11n MAC layer improvements? (Choose two)

  A. Frame aggregation technology
  B. MIMO technology
  C. Block acknowledgment technology
  D. Beamforming technology
  A. Frame aggregation technology
  C. Block acknowledgment technology

• Question 30:

  After a data frame is sent and acknowledged, what is the time interval to wait before sending the next data frame?

  A. SIFS
  B. IFS
  C. DIFS
  D. PIFS
  C. DIFS