When the main fiber is broken or the OLT cannot detect the expected optical signal (LOS) alarm, the possible reason is? (Multiple choice)

exams H35-211_V2.5-ENU V1 H35-211_V2.5-ENU exam 0 Comments

When the main fiber is broken or the OLT cannot detect the expected optical signal (LOS) alarm, the possible reason is? (Multiple choice)
A . There is a rogue ONU under the port
B. Port trunk fiber failure
C. All power failures or faults under the port
D. Port laser is turned off

Answer: BCD