单项选择题
A. Only the first two paths that are learned.
B. Four of the paths.
C. All six routes in a routed robin fashion.
D. The oldest two paths in the routing table.
E. The first path learned to the destination network.
多项选择题 Which of the following statements are correct in regard to classless routing protocols?()
单项选择题 Which one of the following statements best explains the split horizon rule used in distance vector routing protocols?()
单项选择题 What kind of packets does OSPF send to keep up connectivity with its neighboring routers?()