CAR is deployed on PTN equipment. Which of the following descriptions is wrong?
Which one of the following is not necessary to establish a GE-level service path on the network management?
The DCN red copper feature between network elements of PTN, which VLAN number is used by default for DCN self-communication between network elements.
Of the following protections, which items are protected by the double transmission and reception of the electrical layer?
After a certain distance transmission in the wavelength division system, the optical signal-to-noise ratio of the signal at the receiving end will decrease to a certain extent. The main reason is which of the following?
When the switch is working, the device forwards data according to the MAC address forwarding table. Which of the following statements is correct?
The L3VPN routing of the PTN LTE network includes user-side routing and network-side routing. What are the items based on which VPN routing forwarding table is finally generated?
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