Approved 31-204 ZCTA of Transmission(PTN), transmission (PTN) after-sales engineer Exam – Success Pathway Course

[31-204 ZCTA of Transmission(PTN), transmission (PTN) after-sales engineer Exam] In This Course of ,This exam focuses on Packet Transport Network (PTN) after-sales engineering. Candidates are tested on packet-based transmission principles, MPLS-TP, QoS, traffic engineering, OAM functions, and multi-service transport support. They must demonstrate the ability to troubleshoot latency, jitter, and service interruptions in carrier-class transport networks.