The pump laser is the energy source of the EDFA, and its function is to provide energy for the amplification of the optical signal. Which of the following wavelengths can be used as the output wavelength of the
pump source in the EDFA structure?
Which of the following is the electric layer particle that can be crossed by the TSXL veneer?
Regarding the IS-IS backbone area, which of the following statements are correct?
During the normal operation of the network, the service channel protected by ODUK SNCP generates a condition for triggering protection switching, and the service has been automatically switched to the protection channel. When the fault
of the working channel is eliminated, the service cannot be automatically restored to the working channel.
The PWE3 technology in the PTN network often uses VLAN. Where is the VLAN in the Ethernet packet?
Which of the following optical loss alarms will not cause service interruption?
Both the 1310nm and 1550nm transmission windows are low-loss windows. In the DWDM system, only the 1550nm transmission window is used. Which of the following options is the main reason?
Which of the following is the destination MAC address of the Layer 2 header of the data received by the PTN960 from the LTE base station?
After the optical cable is cut, the optical power is normal and there is no ETH_LOS alarm, but the TUNNEL_LOCV alarm is not cleared. What is the most likely cause?
Which of the following technologies is used in the dynamic BGP MPLS L3VPN to distinguish the same IP address prefix in different VPNs in the BGP protocol?
