Free H31-311 Exam Braindumps
HCIA-Transmission V2.0 Questions 41–45 (page: 10)

Updated On: 10-Feb-2026

Which of the following statements about extended ECC is incorrect?

  1. Extended ECC is classified into automatic extended ECC and extended ECC in specified mode.
  2. Automatic extended ECC indicates using a straight-through cable to connect the Ethernet ports of two NEs.
  3. Extended ECC in specified mode indicates that the server and client need to be specified.
  4. Automatic extended ECC can be enabled on a maximum of four NEs. In manual extended ECC mode, each server can be connected to a maximum of three clients.

Answer(s): D



Which of the following are communication quality alarms? (Multiple Choice)

  1. Optical port loopback
  2. No login of an NE user
  3. NE communication interruption
  4. Loss of optical signals

Answer(s): C,D



Which of the following is not the northbound interface provided by the U2000?

  1. XML
  2. SNMP
  3. CORBA
  4. Qx

Answer(s): D



Which of the following is not the advantage of WDM?

  1. Ultra-large capacity and transparent data transmission
  2. Easy to upgrade and maximizing the protection for existing investments
  3. Completely substituting for SDH devices
  4. Compatible with all optical switching networks in the future

Answer(s): C



On a Layer 2 switching device, if the Ethernet port is an Access port, the port can receive only the Ethernet frames without VLAN tags or Ethernet frames with the same VLAN ID as the default VLAN ID of the port.

  1. TRUE
  2. FALSE

Answer(s): B



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