Huawei H12-311_V3.0 HCIA-WLAN V3.0 Exam Exam Practice Test Questions

• Question 1

  In the following description of WEP encryption, the error is ().

  • WEP encryption uses a stream encryption algorithm
    
  • WEP encryption adds IV to destroy the regularity of the key
    
  • The length of IV in WEP encryption is 48 bits
    
  • WEP encryption allows the device to store four keys at the same time
    

  Show Answer Answer: 3 Next

• Question 2

  Which of the following descriptions of management VLAN is correct is ().

  • Mainly responsible for transmitting data when WLAN users go online
    
  • PVID VLAN under the WLAN ESS interface
    
  • Service VLAN under the service set template
    
  • Responsible for the establishment of the CAPWAP tunnel between AC and AP
    

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• Question 3

  For shared key authentication, the error described below is ().

  • After adopting shared key authentication, you must use WEP Encryption
    
  • The shared secret requires users and AP Use the same shared secret
    
  • For skinny AP, The shared key is preset in AC middle
    
  • The disadvantages of shared keys are poor scalability and not very secure
    

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• Question 4

  What frame does the wireless client passively scan to obtain the surrounding wireless network information ()?

  • Beacon frame
    
  • Probe Request frame
    
  • Authentication frame
    
  • Association Request frame
    

  Show Answer Answer: 1 Next

• Question 5

  AP Unavailable IP Common reasons for addresses are (). (Select 3 Answers)

  • Incorrect address pool configuration
    
  • Address pool exhausted
    
  • Intermediate network problem
    
  • POE Power failure
    

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