题目:
The metric assigned to each network depends on the type of protocol.Some simple protocol, like RIP, treats each network as equals. The(1) of passing through each network is the same; it is one(2)count. So if a packet passes through 10 network to reach the destination, 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 (3) through a network can have different costs (metrics). For example, if maximum(4) is the desired type of service, a satellite link has a lower metric than a fiber-optic line. On the other hand, if minimum(5)is the desired type of service, a fiber-optic line has a lower metric than a satellite line. OSPF allow each router to have several routing table based on the required type of Service.
(1)是()
A.number
B.connection
C.diagram
D.cost
答案:
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