试题1

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试题2

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试题3

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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试题4

在一台256M RAM的计算机上安装Linux系统，交换分区（swap）的大小合理
的设置应该为 （ ） 。
A、128M
B、512M
C、1024M
D、4096M

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试题5

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试题6

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试题7

在Web Services中，客户与服务之间的标准通信协议是 （ ） 。
A、简单对象访问协议
B、超文本传输协议
C、统一注册与发现协议
D、远程对象访问协议

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试题8

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试题9

在IPv4中，组播地址是 （ ） 地址。
A、A类
B、B类
C、C类
D、D类

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试题10

在机器指令的地址字段中，直接指出操作数本身的寻址方式称为 （）。
A．隐含寻址
B.寄存器寻址
C. 立即寻址
D．直接寻址

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