（）是一种较为传统的终结性评价方法，它以定性评价为主，也可以定量和定性相结合进行评定。 权重分析法。 积分法。 阶段小结法。 操行评定。 评语。
污染物的分布
When using Overlay Transport Virtualization （OTV）， how do L2 multicast frames traverse the overlay？（） The L2 multicast frames are encapsulated in an OTV packet using the configured control-group multicast address for transport。 The L2 multicast frames are dropped because multicast cannot be carried across the overlay 。 The L2 multicast frames are encapsulated in an OTV packet using the configured data-group multicast address for transport。 The L2 multicast frames are forwarded natively across the overlay based on their multicast ID。
Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label，if the stack bit is set to1，which option is true？（） The stack bit will only be used when LDP is the label distribution protocol。 The label is the last entry in the label stack.。 The stack bit is for Cisco implementations exclusively and will only be used when TDP is the label distribution protocol.。 The stack bit is reserved for future use.。
In an L2TP voluntary tunneling scenario， the VPDN tunnel is terminated between：（） The client and the NAS.。 The NAS andthe LNS.。 The NAS and the LAC.。 The client and the LNS.。
项目的特点包括有（）。
