试题详情
- 单项选择题In a frame ,the MPLS label is imposed().
A、After the Layer3 header and before Layer2 header
B、After the Layer2 header and before Layer3 header
C、Within the Layer 3 header
D、Before the layer 2 header
- B
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A、After the Layer3 header and before Layer2 header
B、After the Layer2 header and before Layer3 header
C、Within the Layer 3 header
D、Before the layer 2 header
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