Free H12-311 Exam Braindumps (page: 4)

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Which of the following options is in the 5GHz band supported by China?

  1. 5.15~5.25GHz
  2. 5.25~5.35GHz
  3. 5.725~5.825GHz
  4. 5.725~5.850GHz

Answer(s): D



What are the modulation methods (Select 3 Answers) depending on the signal parameters being controlled?

  1. amplitude modulation
  2. frequency modulation
  3. phase modulation
  4. modulation

Answer(s): A,B,C



Which modulation method does the following picture belong to?

  1. amplitude modulation
  2. frequency modulation
  3. phase modulation
  4. modulation

Answer(s): B



What is the name of the first radio communication network based on packet technology?

  1. INTERNET
  2. ARPANet
  3. ALOHNET
  4. NSFnet

Answer(s): C






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