Which three topologies are standardized by the Metro Ethernet Forum? (Choose three)
A. E-LAN
B. VPWS
C. E-Tree
D. E-Line
E. NPE
F. PNNI
Which three topologies are standardized by the Metro Ethernet Forum? (Choose three)
A. E-LAN
B. VPWS
C. E-Tree
D. E-Line
E. NPE
F. PNNI