試題1

Border Gateway Protocol(BGP) is inter-autonomous system  (1)  protocol. BGP is based on a routing method called path vector routing. Distance vector routing is not a good candidate for inter-autonomous system routing because there are occasions on which the route with the smallest  (2)  count is not the preferred route. For example, we may not want a packet through an autonomous system that is not secure even though it is shortest route. Also, distance vector routing is unstable due to the fact that the routers announce only the number of hop counts to the destination without defining the path that leads to that  (3)  . A router that receives a distance vector advertisement packet may be fooled if the shortest path is actually calculated through the receiving router itself. Link  (4)  routing is also not a good candidate for inter-autonomous system routing because an internet is usually too big for this routing method. To use link state routing for the whole internet would require each router to have a huge link state database. It would also take a long time for each router to calculate its routing  (5)  using the Dijkstra algorism.
（1）A、routing
B、switching
C、transmitting
D、receiving
（2）A、path
B、hop
C、route
D、packet
（3）A、connection
B、window
C、source
D、destination
（4）A、status
B、search
C、state
D、research
（5）A、table
B、state
C、metric
D、cost

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試題2

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試題3

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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

安全散列算法SHA-1產(chǎn)生的摘要的位數(shù)是  （ ）  。
A、64
B、128
C、160
D、256

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試題8

在Windows2000操作系統(tǒng)中，配置IP地址的命令是 （1） 。若用ping命令來測試本機(jī)是否安裝了TCP/IP協(xié)議，則正確的命令是 （2） 。如果要列出本機(jī)當(dāng)前建立的連接，可以使用的命令是 （3） 。
（1）A、winipcfg
B、ipconfig
C、ipcfg
D、winipconfig
（2）A、ping 127.0.0.0
B、ping 127.0.0.1
C、ping 127.0.1.1
D、ping 127.1.1.1
（3）A、netstat –s
B、netstat –o
C、netstat-a
D、netstat -r

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試題9

IP地址172.17.16.255/23是一個?。?）　。
A、網(wǎng)絡(luò)地址
B、主機(jī)地址
C、定向廣播地址
D、不定向廣播地址

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試題10

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