Free 312-38 Exam Braindumps (page: 56)

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Which of the following protocols sends a jam signal when a collision is detected?

  1. ALOHA
  2. CSMA/CA
  3. CSMA/CD
  4. CSMA

Answer(s): C



Which of the following key features limits the rate a sender transfers data to guarantee reliable delivery?

  1. Ordered data transfer
  2. Error-free data transfer
  3. Flow control
  4. Congestion control

Answer(s): C



Which of the following OSI layers is sometimes called the syntax layer?

  1. Presentation layer
  2. Application layer
  3. Physical layer
  4. Data link layer

Answer(s): A



In which of the following transmission modes is data sent and received alternatively?

  1. Simplex mode
  2. Bridge mode
  3. Half-duplex mode
  4. Full-duplex mode

Answer(s): C






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