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Free H35-260 Exam Braindumps (page: 33)

Page 32 of 85
PDF with 338 Questions

When the switch is working, the device forwards data according to the MAC address forwarding table.
Which of the following statements is correct?

  1. If the destination MAC address of the packet is the broadcast MAC address, it will be flooded to all ports including the source port.
  2. If the destination address of the message is a unicast MAC address, look up the MAC address table, and if found, forward the frame to the corresponding port (excluding the source port)
  3. If the destination address of the packet is a unicast MAC address, but there is no corresponding entry in the MAC address table, the packet is discarded
  4. If the MAC address entry of the device reaches the upper specification limit of the device, the device cannot learn new MAC address entries, and the packet is discarded.

Answer(s): B



The characteristic of the open DWDM system is that there are no special requirements for the optical interface of the multiplexing terminal, and only these interfaces are required to comply with the optical interface standard recommended by ITU-T. The DWDM system adopts wavelength conversion technology to convert the optical signal of the multiplexed terminal into a specific wavelength, and the optical signal of different terminal equipment is converted into different wavelengths that comply with ITU-T recommendations, and then multiplexed.

  1. True
  2. False

Answer(s): A



Which of the following conditions will cause multiple channels to report BEFFEC-EXC alarms at the same time?

  1. The input optical power of the OTU board is too high or too low
  2. Optical fiber failure of optical cable or multiplexer
  3. The signal is lost too much in the transmission of line C
  4. Abnormal external environment

Answer(s): B,C,D



What are the possible reasons for the unsuccessful OCH creation by the path method?

  1. Missing service layer path
  2. Source, sink but inconsistent half-wavelength configuration
  3. The data on the device side and the remote side of the network are not synchronized
  4. The time on the device side and the network element side is not synchronized

Answer(s): A,B,C






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