Which of the following clock working modes support the ITU-T G.781 standard? (Multiple Choice)

Posted by: Pdfprep Category: H31-311-ENU Tags: , ,

Which of the following clock working modes support the ITU-T G.781 standard? (Multiple Choice)
A . Tracing
B . Holdover
C . Free-run
D . Master/Slave

Answer: ABC

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