问题 单项选择题

下列软件中不能用于网络嗅探的是______。

A.TCPdump
B.Wireshark
C.Ethereal
D.MRTG

答案

参考答案:D

解析: 常见的网络数据监听工具(嗅探器软件)有Sniffer Pro、Iris、Ethereal、TCPdump、Wireshark等。其中,Sniffer Pro是一款功能强大的可视化网络数据、网络流量监控软件。
Wireshark(2006年夏季之前称为Ethereal)是一款开源的网络封包分析软件,其功能是撷取网络封包,并尽可能显示出最为详细的网络封包资料。
MRTG(Multi Router Traffic Grapher)是一款监控网络链路流量负载的工具软件,它通过SNMP协议从设备得到设备的流量信息,并将流量负载以包含PNG格式的图形的HTML文档方式显示给用户,以非常直观的形式显示流量负载。

选择题
完形填空
A mouse looked through a crack(裂缝) in the wall to see the farmer and his wife opening a package. “What food might this contain?”The mouse____.He was alarmed to discover that it was a mousetrap(捕鼠夹子).
Going back to the farmyard the mouse gave a(n)____:“There is a mousetrap!” The chicken raised her head and said: “Mr Mouse, I can tell this is a big____to you, but it is of no consequence to me.I cannot be____by it.”
The mouse  turned  to  the  pig. “I  am  so  sorry,”sympathized the pig, “but there is____I can do about it but____.I will make sure that you are in my prayers.”
The mouse turned to the cow.“Mr Mouse, I'm sorry for you,____it's no skin off my nose,” said she.
So he returned to the house, head down and___, to face the farmer's mousetrap alone.
That very night a sound was heard throughout the house,like the sound of a mousetrap____its prey.The farmer's wife rushed to see what was caught. In the darkness, she didn't see that it was a____ snake whose tail the trap had caught.The snake bit her.
The farmer rushed her to the hospital.She returned home with a fever.Now everyone knows you____a fever with fresh chicken soup, so the farmer took a knife to the____for the chicken.
His wife's sickness___so that friends and neighbors came to sit with her around the clock.To feed them the farmer killed the pig.
The farmer's wife didn't get____and died.So many people came for her____that the farmer had the____ killed so as to____meat for all of them to eat.
The mouse looked upon it all from his____in the wall with great____.
So, the next time you hear someone is facing a problem and think it doesn't concern you, remember—when one of us is threatened, we are all at____.
小题1:
A.whispered B.shouted
C.wondered D.hesitated
小题2:
A.warning B.message
C.noticeD.information
小题3:
A.surprise B.concern
C.resultD.deal
小题4:
A.bothered B.cheated
C.murdered D.exchanged
小题5:.
A.anything B.something
C.everythingD.nothing
小题6:
A.wait B.pray
C.avoid D.prevent
小题7:
A.soB.and
C.but D.for
小题8:
A.astonishedB.puzzled
C.depressed D.satisfied
小题9:
A.catching B.protecting
C.gathering D.collecting
小题10:.
A.poisonous B.nervous
C.fat D.big
小题11:
A.checkB.treat
C.abandon D.examine
小题12:
A.room B.farmyard
C.kitchen D.wall
小题13:
A.appeared B.reduced
C.disappeared D.continued
小题14:
A.good B.safe
C.quiet D.well
小题15:
A.funeral B.event
C.farm D.death
小题16:
A.chicken B.cow
C.snake D.pig
小题17:
A.offerB.afford
C.provide D.supply
小题18:
A.houseB.position
C.crack D.expression
小题19:
A.happinessB.sadness
C.tiredness D.carelessness
小题20:
A.peaceB.risk
C.sight D.work