多項(xiàng)選擇題

Which three of these are types of Ethernet Virtual Connections (EVCs) in the MEF concept? ()

A.rooted multipoint EVC (E-Tree)
B.point-to-point EVC (E-Line)
C.point-to-multipoint EVC (E-Tree)
D.hub spoke EVC (E-Tree)
E.multipoint-to-multipoint EVC (E-LAN)

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