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Free 4A0-100 Exam Braindumps (page: 12)

Page 11 of 89
PDF with 352 Questions

Refer to the exhibit.


An Ethernet Local Area Network (LAN) consists of the following components:
- Four 24-port hubs & Two 16-port switches

How many broadcast domains are on this LAN?

  1. 1
  2. 2
  3. 5
  4. 32

Answer(s): A



Which of the following best describes an Ethernet bridge?

  1. A passive device simply used to connect two or more cables. Does not generate or amplify any signals.
  2. A device that receives and retransmits a signal out its other ports, but does not do any Layer 2 analysis of the data.
  3. A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.
  4. A device that receives a signal and based on the Layer 3 destination address, makes a decision on which ports the signal should be retransmitted.

Answer(s): C



What happens immediately after an Ethernet switch receives an Ethernet frame?

  1. It records the destination MAC address and the interface on which it arrived.
  2. It records the source MAC address and the interface on which it arrived.
  3. It floods the frame out of all its interfaces except the interface on which the frame arrived.
  4. It transmits the frame out of the appropriate interface.

Answer(s): B



What is the behavior of a typical Ethernet switch when it receives a frame with a uncast destination MAC address? (Choose two)

  1. The switch floods the frame out of all ports except the port on which it was received.
  2. The switch looks in its FD If the source address is unknown it discards the frame.
  3. The switch looks in its FDB. If the destination address is known it forwards the frame out the appropriate interface.
  4. The switch looks in its FDB. If the destination address is unknown it floods the frame out all ports except the port on which it was received.
  5. The switch looks in its FDB. If the destination address is unknown it discards the frame.

Answer(s): C,D






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