試題:The metric assigned to each network depends on the type of protocol.Some simple protocol,like RIP,treats each network as equals.The （ ） of passing through each network is the same;
A.number
B.connection
C.diagram
D.cost
試題:it is one （ ） count.So if a packet passes through 10 network to reach thedestination,the total cost is 10 hop counts.Other protocols,such as OSPF,allow the administrator to assign a cost for passing through a network based on the type of service required.
A.process
B.hop
C.route
D.flow
然后說下為什么選這個答案的原因