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ClicktheExhibitbutton.Theexhibitshowsa15454/15216DWDMsystemandalarmindications.Whataretwopossiblesourcesoftroubleshowninthesystem?()
A.fiberfailurebetweenSitesAandD
B.EDFAfailureatSiteA(clockwisedirection)
C.EDFAfailureatSiteC(clockwisedirection)
D.15216multiplexeratSiteA(counter-clockwisedirection)
E.OADMpass-through(West"OUT")failureatsiteD(clockwise)
F.wavelengths1and3transmitterfailuresatSiteA(clockwisedirection)
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