試題1

以太網(wǎng)中的幀屬于 （ ） 協(xié)議數(shù)據(jù)單元。
A、物理層
B、數(shù)據(jù)鏈路層
C、網(wǎng)絡(luò)層
D、應(yīng)用層

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試題2

在Linux 系統(tǒng)中，采用 （1） 命令查看進(jìn)程輸出的信息，得到下圖所示的結(jié)果。系統(tǒng)啟動(dòng)時(shí)最先運(yùn)行的進(jìn)程是 （2） ，下列關(guān)于進(jìn)程xinetd的說(shuō)法中正確的是 （3） 。

（1）A、ps -all
B、ps -aef
C、ls -a
D、ls –la
（2）A、0
B、null
C、init
D、bash
（3）A、xinetd是網(wǎng)絡(luò)服務(wù)的守護(hù)進(jìn)程
B、xinetd是定時(shí)服務(wù)的守護(hù)進(jìn)程
C、xinetd進(jìn)程負(fù)責(zé)配置網(wǎng)絡(luò)接口
D、xinetd進(jìn)程進(jìn)程負(fù)責(zé)啟動(dòng)網(wǎng)卡

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試題3

以下域名服務(wù)器中，沒(méi)有域名數(shù)據(jù)庫(kù)的  （ ）  。
A、緩存域名服務(wù)器
B、主域名服務(wù)器
C、輔助域名服務(wù)器
D、轉(zhuǎn)發(fā)域名服務(wù)器

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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

目前在網(wǎng)絡(luò)上流行的“熊貓燒香”病毒屬于 （ ） 類(lèi)型的病毒。
A、目錄
B、引導(dǎo)區(qū)
C、蠕蟲(chóng)
D、DOS

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試題8

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9

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試題10

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