Huawei H12-311 Online Practice Questions and Exam Preparation

Huawei H12-311 Online Questions & Answers

• Question 161:

  Which of the following statements are correct? (Choose three)

  A. WPA2 PSK authentication requires the user to enter a username and password to connect.
  B. When the user obtains an IP address successfully, triggering an HTTP packet forces the user to be redirected to the portal server for authentication.
  C. WPA2 uses 802.1X authentication.
  D. WAPI is China's national wireless LAN standard
  B. When the user obtains an IP address successfully, triggering an HTTP packet forces the user to be redirected to the portal server for authentication.
  C. WPA2 uses 802.1X authentication.
  D. WAPI is China's national wireless LAN standard

• Question 162:

  For the AC + thin AP networking architecture, which of the following descriptions is incorrect?

  A. An AP cannot work alone; it must be maintained and managed by the AC centrally.
  B. Service QoS, security, and other functions can be enhanced through the AC.
  C. The AP itself has zero configuration and is suitable for large-scale networking.
  D. Management of APs and users must be implemented through the network management system.
  D. Management of APs and users must be implemented through the network management system.

• Question 163:

  When the center frequency distance between two channels is less than or equal to 25 MHz, there is an overlap between the channels and potential interference. Therefore, to avoid adjacent channel interference, the same channel should not be used in adjacent areas.

  A. True
  B. False
  B. False

• Question 164:

  The maximum number of layers supported by the location topology in Huawei eSight is:

  A. 7
  B. 8
  C. 9
  D. 10
  D. 10

• Question 165:

  The modulation methods adopted by DSSS are BPSK and QPSK.

  A. True
  B. False
  A. True

• Question 166:

  According to the 802.11 random backoff mechanism, the backoff time must be an integer multiple of the timeslot duration.

  A. True
  B. False
  A. True

• Question 167:

  Regarding the AP6610DN, which statement is incorrect?

  A. AP6610DN is an enhanced outdoor AP.
  B. AP6610DN is a dual-band AP, where the 5 GHz band can be used for both wireless bridging and user access.
  C. AP6610DN only has one Ethernet interface with a maximum bandwidth of 1000 Mbps.
  D. AP6610DN supports both Ethernet and fiber interfaces.
  C. AP6610DN only has one Ethernet interface with a maximum bandwidth of 1000 Mbps.

• Question 168:

  In 802.11a, how many subcarriers are used to transmit data in 20 MHz mode?

  A. 48
  B. 52
  C. 54
  D. 56
  A. 48

• Question 169:

  Channel utilization is the ratio of the actual channel occupancy time to the total available channel time.

  A. True
  B. False
  A. True

• Question 170:

  In large companies with many video conferences, which service model is generally adopted for QoS?

  A. Best Effort model
  B. IntServ model
  C. FIFO model
  D. DiffServ model
  C. FIFO model