问题详情

OSPF is a link-state routing protocol。It is designed to be run internal to a single __(71__system。Each OSPF router maintains an identical __(72)__ describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path __(73)__。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing __(74)__ traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol __(75)__。
A.autonomous
B.network
C.computer
D.server请帮忙给出正确答案和分析，谢谢！