题目内容
(请给出正确答案)
[判断题]
Linear protection switching of tunnel on ZXCTN products depends on whether port is DOW
答案
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第3题
A.立方保护;all-round protection
B.1+1保护;1+1 protection
C.主备保护;active/standby protection
D.1:N;1:N protection
第4题
A.Protection lock
B.Protection signal invalidatio
C.Forced switching
D.Working signal invalidatio