# 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.[单选题]

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 costsmetrics.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.

• A.process
• B.hop
• C.route
• D.flow
2.[单选题]

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 costsmetrics.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.

• A.packet
• B.throughput
• C.error
• D.number
3.[单选题]

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 costsmetrics.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.

• A.number
• B.connection
• C.connection
• D.cost
4.[单选题]

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 costsmetrics.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.

• A.delay
• B.stream
• C.packet
• D.packet
5.[单选题]

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 costsmetrics.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.

• A.flow
• B.window
• C.route
• D.cost