H31-311_V2.5 Exam Dumps - HCIA-Transmission V2.5
Question # 57
For osn3500, which of the following boards provides centralized backup capability for the +3.3V power supply of each board in the sub-shelf?
Question # 58
Which of the following can be used as the central wavelength of the pump source in EDFA? (Multiple choice).
Question # 59
On a Layer 2 switching device, if the Ethernet port is an Access port, the port can only receive Ethernet frames without a VLAN tag or Ethernet frames with the same VLAN ID as the default VLAN ID of the port.