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毒效应谱（spectrum of toxic effects）
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Which software-based security threat is typically spread from user to user via e-mail?（）
A . Virus
B . Trojan horse
C . Denial of service
D . Data interceptio
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What does a broad-spectrum interferer lower？（）
A . SNR
B . noise floor
C . level of interference
D . Received Signal Strength Indicator
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在利用YBT250进行频段扫描时，关于扫描测试参数的设置（频谱（spectrum）界面），下列哪些说法是正确的？（）
A . A、Trace项选择Average模式
B . B、SPAN设置5MHz
C . C、Vertical Scale项设置为10dB/div
D . D、RefLvl项一般使用AutoLevel档
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Which spread spectrum technology does the 802.11b standard define for operation?（）
A . IR
B . DSSS
C . FHSS
D . DSSS and FHSS
E . IR, FHSS, and DSSS&e
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Spread Spectrum扩展频谱
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A small bio-tech company is interested in implementing an IBM System Storage solution. Which ofthe following tools can be used to help justify the cost of our solution to a customer?（）
A . TCOnow
B . Disk Magic
C . Capacity Magic
D . System Storage Productivity Center (SSPC)
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For which two of these purposes are Cisco Spectrum Expert used?（）
A . audit VoWLAN cell edge coverage
B . verify RFID tag coverage by four access points at -75 dBm
C . audit microwave oven interference
D . audit 802.11a channel 36 utilization
E . create test scripts for 802.11n bonded channel throughput test
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A fire may be spread by which of the following means?（）
A . Conduction of heat to adjacent surfaces
B . Direct radiation
C . Convection
D . All of the above
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The following command is sued Show tech-support chassis x bmc y. Which c0mp0nent in chassis x will have its information shown?（）
A . all subcomponents
B . IOM y
C . compute node y
D . mezzanine adapter z in compute node y
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Which tech nology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?（）
A . IGMP
B . IGMP snooping
C . PIM - DM
D . DVMRP
E . MOS PF
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In which three frequency bands does the Cisco Spectrum Expert Wi-Fi tool perform spectrumanalysis？ （）
A . ISM 2.4 GHz
B . ISM 900 MHz
C . ISM 5 GHz
D . public safety 4.9 GHz
E . GSM 1.9 GHz
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You work as the application developer at Hi-Tech.com. You create a new custom dictionary named MyDictionary. Choose the code segment which will ensure that MyDictionary is type safe？（）
A . Class MyDictionary Implements Dictionary （Of String，String）
B . Class MyDictionary Inherits HashTable
C . Class MyDictionary Implements IDictionary
D . Class MyDictionary End Class Dim t as New Dictionary （Of String， String） Dim dict As MyDIctionary= CType （t，MyDictionary）
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high-tech
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In addition to getting them vaccinated ( 接种疫苗 ) against both seasonal and H1N1 flu, teach your kids basic hygiene habits, which can _______ in preventing the spread of the virus.
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Antibacterial spectrum是指 （ ）
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to narrow the spectrum of choice
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The stage of mental comfort to which they had arrived at this hour was one wherein their souls expanded beyond their skins, and spread their personalities warmly through the room.
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High-Tech Warfare（战争) Today, high-tech warfare is no longer an abstract concept, bu
High-Tech Warfare(战争)
Today, high-tech warfare is no longer an abstract concept, but a real issue.
Technology__________________ (51) tactics, sociology, and the development of weaponry (武器).It also causes the changes in battles. Then what are the new characteristics of modern battles__________________ (52) by the application of high technologies？
High-tech warfare naturally includes high technology. In modern battles, a single kind of weapon can hardly be__________________ (53). Various weaponry, such as intelligence detection and information processing, should__________________ (54) well with each other. Aerial (航空的) weaponry becomes the main force in battles in the sky. Precision homing(精确自导) weaponry like cruise missiles and missiles__________________ (55) satellite homing systems becomes the main attack weapons.
Battle control systems play a dominant role. Various weapons and logistics (后勤)systems are__________________ (56) into a comprehensive framework, centrally representing the modern high-tech weaponry. Depending on various__________________(57) equipment and means in electronic warfare, our army will not be passively beaten.__________________ (58) the battlefield, high-tech warfare has created a type of non-linear (非线性) chaos. Because of the use of long-range precision weaponry, the opposite parties in warfare can't "touch" or "see" each other, and distance is no longer the decisive factor affecting the__________________ (59) of battles. It is hard to clearly define the lines between the frontier and the rear, as well as attack and defense. The traditional three-dimensional air-sea battlefield will be__________________ (60) by the multi-dimensional battlefield composed of air,
sea, magnetic, electrical and information battlefields. No large-scale movements can be conducted__________________ (61).
Because modern weaponry systems are closely related to chains of demand and communication and electronic technology, the parties__________________ (62) have to pay attention to the usufruct (使用权) and control of electromagnetic frequency spectrum. So electronic warfare becomes__________________ (63) important and the necessary guarantee of victory. Whatever__________________ (64) warfare goes to and whatever cloak (伪装) it wears, it always violates peace and brings the world bloodshed (流血). Most people think of high technology as a__________________ (65) to enhance their lives, and they don't wish it to be used to destroy lives.
第 51 题
A．uses
B．adopts
C．determines
D．selects
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Rescue teams from all over the world_____on the earthquake-stricken area after the news spread that the quake, which measured 7.9 on the Richter scale, had claimed a toll of 15,000 lives.
A．diversified
B．disseminated
C．converged
D．accelerated
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Which one of the following statements is NOT true about the sentence “On one end of the spectrum , we’ve heard the implication that my candidacy is somehow an exercise in affirmative action ”？
A.“Spectrum” here refers to a wide variety of different opinions.
B.Obama tries to respond to some of the doubts over his candidacy.
C.Obama tries to point out a misjudgment a lot of people had for his candidacy --- Obama could become the candidate of the president just because he took advantage of some of the policies that favored the underprivileged people such as the black, the women, the disabled in order to ensure the social equality and his candidacy had nothing to do with his qualification
D.Obama tries to point out a misjudgment a lot of people had for his candidacy --- Obama could become the candidate of the president just because a lot of people agree to do so.
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Which of the following best summrizes the min informtion of the pssge High－tech helWhich of the following best summrizes the min informtion of the pssge High-tech helps locte mny fscintingrcheologicl sites. B．Without high-tech, thercheologist’s work would come to stop C．High-tech is hs tken the plce of shovelsnd picks. D．High-tech mkes thercheologist’s work more fruitful.
A．High-tech helps locate many fascinating archeological sites．
B．Without high-tech, the archeologist’s work would come to a stop
C．High-tech is has taken the place of shovels and picks．
D．High-tech makes the archeologist’s work more fruitful．
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YouworkasanapplicationdeveloperatCer-Tech.com.YouareintheprocessofcreatinganapplicationforCert-Tech.com’sHumanResourcesdepartmentthattracksemployeebenefitsYouhavetostorecurrentemployeedatawithoutrecompilingtheapplication.Youelecttostorethisemployeedataasacustomsectionintheapplicationconfigurationfile.Therelevantportionoftheapplicationconfigurationfileisshowninthefollowingexhibit：Whatshouldyoudo？（）
A.CreateacustomsectionhandlerclassthatinheritstheConfigurationSectioninterface
B.AddasectionelementtotheEmployeeSectionelementoftheapplicationconfigurationfile
C.CreateacustomsectionhandlerclassthatimplementstheIConfigurationSectionHandlerinterface.
D.AddanEmployeeSectionelementtotheconfigSectionselementoftheapplicationconfgurationfile
E.CreateacustomsectionhandlerclassthatimplementstheIApplicationSettingsProviderinterface
F.AddasectionelementtotheconfigSectionselementoftheapplicationconfigurationfile
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Cer-tech.comrunsTerminalservicesonanActiveDirectorydomain.AsanadministratorofCer-tech.com，youconfigurethemainofficeprinterasthedefaultprinteronTerminalserver.Cer-tech.comhasastringentsecuritypolicywhichstatesthatalltheremoteclientcomputersmustmeetthefollowingrequirements：
*Thedefaultprinteronclientcomputersmustbethemainofficeprinter
*UsersmustalsobeabletoaccesstheirlocalprintersduringaterminalsessionTomeetthecompanypolicy，youhavetosetaGroupPolicyObjectbyusingtheTerminalServicesPrinterRedirectiontemplate.
Whatshouldyoudotoachievethisobjective？（）
