A、multipart-to-multipoint EVC （E-LAN）
B、hub spoke EVC （E-Tree）
C、point to point EVC （E-Line）
D、rooted multipoint EVC （E-Tree）
E、point-to-multipoint EVC （E-Tree）
更多“Which tree of these are types of Ethernet Virtue Connections （EVCs） in the MEF concept？（）”相关的问题
A、spanning-tree backbonefast B、spanning-tree uplinkfast C、spanning-tree portfast D、spanning-tree cost512
A、spanning-tree mode rapid-pvst B、spanning-tree uplinkfast C、spanning-tree backbonefast D、spanning-tree mode mst
A、spanning-tree guard root B、spanning-tree portfast bpduguard default C、spanning-tree bpduguard enable D、spanning-tree bpdufilter enable E、spanning-tree portfast bpdufilter default
A、Designated port B、Nonswitch port C、Switch port D、Nonroot port E、Nondesignated port F、Root port
A、A.interface gig3/1 spanning-tree guard root B、B.interface gig3/1 spanning-tree root guard C、C.interface gig3/1 spanning-tree root-guard D、D.interface gig3/1 spanning-tree root-guard default
A、A single forest with one tree, and one domain B、A single forest with one tree two domain C、A single forest with two trees, each with a single domain D、Two forests, each with a single tree and a single domain E、Two forests, each with two trees, with a single domain in each tree
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