Free 4A0-100 Exam Braindumps (page: 18)

Page 18 of 89

Which of the following is true of Ethernet half-duplex transmission?

  1. Half-duplex transmission is less efficient because the frame MTU is smaller.
  2. Half-duplex transmission is only 30-40% efficient because of collisions.
  3. Ethernet switches support half-duplex transmission only.
  4. All of the above.

Answer(s): B



What is the meaning of carrier sense in the CSMA/CD algorithm?

  1. The host will retransmit the frame if it detects a collision during transmission.
  2. The host is able to detect the transmission speed of the Ethernet switch port to which the host is connected.
  3. The host will only transmit data when it detects that no other devices are transmitting.
  4. The host will only transmit upon a timer expiry.
  5. The host will only transmit when it receives the token.

Answer(s): C



What is the effective maximum rate of data transmission on a 10 Mbps full-duplex Ethernet link?

  1. 5 Mbps.
  2. 10 Mbps.
  3. 15 Mbps.
  4. 20 Mbps.

Answer(s): D



Which of the following Ethernet rates requires an optical cable to operate?

  1. 10 Mb/s Ethernet
  2. 100 Mb/s Ethernet
  3. 1000 Mb/s Ethernet
  4. There are copper and optical versions possible for all of these Ethernet data rates.

Answer(s): D



Page 18 of 89



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