多项选择题
A. Point-to-point
B. Point to multipoint
C. Broadcast
D. Non-broadcast multi-access
多项选择题 Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.（）
多项选择题 Which two are NOT characteristics of the OSPF routing protocol?（）
单项选择题 If the bandwidth of an OSPF interface is configured with the "bandwidth 64"command, what would be the calculated cost of the link?（）