Which three of these statements about penultimate hop popping are true？（） It is used only for directly connected subnets or aggregate routes.。 It can only be used with LDP.。 It is only used when two or more labels are stacked.。 It enables the Edge LSR to request a label pop operation from its upstream neighbors.。 It is requested through TDP using a special label value that is also called the implicit-null value.。 It is requested through LDP using a special label value that is also called the implicit-null value.。
弯曲载荷
What is an autonomous system？
挂运在旅客列车上的运输军事人员的车辆，其运价里程按（）计算 货运价里程。 客运运价里程。 客运运价里程的百分之八十。 客运运价里程的百分之九十。
8086/8088存储器写周期中，数据开始的状态是（）。 Tl。 T2。 T3。
Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme?（）
