多项选择题
What are two ways that packet fragmentation is handled differently between IPv6 and IPv4?（）
A. End hosts determine the path MTU for IPv6. B. End hosts determine the path MTU for IPv4. C. Packet fragmentation occurs at intermediate nodes for IPv4. D. Packet fragmentation occurs at intermediate nodes for IPv6.
多项选择题 Which two statements about MPLS label-switched paths (LSPs) are true? （）
单项选择题 Which statement is correct regarding IPv6 addresses?（）
单项选择题 At which layer of the OSI model does error checking occur with IPv6?（）
