試題1

ftp命令中用來設置客戶端當前工作目錄的命令是?。?）　。
A、get
B、list
C、lcd
D、!list

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試題2

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試題3

點對點協(xié)議PPP中LCP的作用是（12）。
A．包裝各種上層協(xié)議  
B．封裝承載的網(wǎng)絡層協(xié)議
C．把分組轉變成信元  
D．建立和配置數(shù)據(jù)鏈路

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試題4

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試題5

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試題6

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試題7

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試題8

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 ?。?）　 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 ?。?）　 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 ?。?）　 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）A、number
B、connection
C、diagram
D、cost
（2）A、process
B、hop
C、route
D、flow
（3）A、flow
B、window
C、route
D、cost
（4）A、packet
B、throughput
C、error
D、number
（5）A、delay
B、stream
C、packet
D、cost

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試題9

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試題10

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