西南大學(xué)信息安全2015年春作業(yè)答案

1、livingstardspofarmersinlessthancompleteeliminationof4600Yuan894919008.“Fivewatersrule“:theCountyinvested2.169billionyuansimilarcountieslinethecitysfirstcompletethe42kmofsewagepipewkconstructioncompletionraterankedfirstin

2、thecitywontheprovincialruralsewagetreatmentwkbetterkeypollutionsourcessuchaselectroplatingpapermakingchemicalindustrymanagementthroughverificationacceptanceofthemunicipalgovernmenttheCountyremovedBlackodousRiverRiverwast

3、ebeginningofriverecologicalrestationeffects.“Threemodifiedasplit“aspects:Countytotaldemolitionillegalareaup2.759millionsquaremeterscompletedCityissuedannualtaskof153%splitagainstarearankingcitysecondcompleted“threemodifi

4、ed“area4.846millionsquaremeterscompletedCityissuedannualtaskof403%rankingcitythirdwhichvillageintheatargetcompletedtotalcityrankingfirstCountyGovernmentwasnamedcitylevel“threemodifiedasplit“wkadvanced.Theseachievementsar

5、ehardwonshouldbeappreciated.HoweverwearefullyawarethenewperiodwkinthecountrysidetheenvironmentfacinghigherstardsrequirementsprovincialpartyCommitteeofferedtohighlevelbuildacomprehensivewelloffsocietygoalrequires“nofilthd

6、irtyenvironmentillegalbuildingsintoawelloff“municipalpartyCommitteealsoproposestobuildintothewelloffbenchmarkgoalsofthecity.Comparedwiththesupericlaim“SouthGateofXXbeautiful“goalmyCounty“SanNong“environmentthereareanumbe

7、rofweaknessesgapshighlightedinthefollowingfiveaspects:firstagricultureremained“l(fā)ow“pattern.“Low“isreflectedinthequalitylowshtvalueaddedoftheindustrychainislow123fusionyieldlowemployeeagelowquality.“Small“isreflectedinsma

8、llerspecializedcooperativesthroughouttheCountytherewere3396butonthescaleoftoolittle.“San“isreflectedinproductionmanagementservicesdecentralizedcentralizedstardizedbrinfmationganizationallevelisnothigh.Secondthecountrysid

9、eisstillin“dirty“phase.“Dirty“isdirtyofruralsanitationsituationhasnotchanged.“Chaos“isavillageinruralhousingconstructionplanningconstructionofdisdernodrawingsnoconstructionnovetting“fourno“phenomenonheaplyingthere.“Bad“i

10、stheweakruralbasevillagegovernanceispo.Thirdlyfarmerscontinuedtobe“persistent“l(fā)ook.“Old“isagingrurallabfceaccountedf70%overtheageof50.“Big“isthattherefmmeasuresgroundresistancesuchasthetransactionsofpropertyrightslreplac

11、ementpublicservicesupplygapruraleducationhealthcarepensionsotherservicescannotmeetthedemstilldifficultfpovertyalleviationwithemphasisonpovertyalleviation191.“Hard“isa“peasantspeasants.Fourwatereffectsstilllackscompelling

12、.“Althoughthe“fivewatertreatment“alotwkveryhardbutthefloodofscientificenoughbefethetreatmentwaterqualityimprovementafterthetreatmenteffectisnotobviouscountywidefocusonriverstilllargelyinferifivewaterswimmingtheRivercould

13、notbefound.Fiveis“threetosplit“taskstillliesahead.Noticeofstocktherenewconstructiondidnotreceivetimelytreatmenteveryyear(suchasancestralhallasunauthisedrepeated)contrarytothecreatedwkisverydifferentfromtheprovincialmunic

14、ipalstards.Meanwhilewhenimplementationisnotinplacegenerallyonlyfocusonillegalconstructiondemolishedfailingthatsplitthatisclearcombineddemolitioninsufficientattentiontoreconstructionofoldresidentialareasurbanvillagesshant

15、ytownspromotepo.Tosolvetheseproblemswemustenhancethesenseofresponsibilityurgencyinsistonproblemientedtotakestrongmeasuresefftstomakeupthe“threeagriculture““fivewatertreatment““threetosplita“shtBoardconstructionofcomprehe

16、nsivesafeguards“SouthGateofXXbeautiful“goalofrealizing.IIprecisionShipolicymanpowerplayinggood“threeagricultural“wkprotracted“threeagricultural“wkisdoeconomicsocialdevelopmentthewkofbasedcountylevelsthesecttoaccdingto“ba

17、sedagriculturalmanpowerruraldevelopmentfarmers“ofrequirementsinsistedagriculturalruralbasedstatusnotshakeinsistedhuinongkulakpolicynotweakenedinsistedrefminnovationtestnotstopefftscreatednewera“threeagricultural“wknewsit

18、uation.(A)tomakeagricultureme.Toestablishtheconceptofagriculturearoundthepeopledemcomprehensivelypromotethesupplysideofagriculturestructuralrefmstrivetoenhancethequalityefficiencyofagriculturecompetitiveness.Focusisondoi

19、ngthefourarticles.Oneisthesteadyincreaseofgrainarticle.Alwaystightenthestringffoodsecurity“ricebag“catchinhtoholdlintheadjustmentofagriculturalplantingstructureinthe“redline.“Acceleratingtheconstructionofgrainribbonsimpr

20、ovingagriculturalinfrastructureenhancefoodproductioncapacityimprovethequalityofagriculturalproductseffectively“steadyincreaseofgrain“maintain“tongue.“Secondindustryconvergencearticle.Enhancethelevelofconcentrationintensi

21、ficationofagriculturecreatingproductionprocessingdistributionsalesserviceinoneoftheagriculturalindustrialchaintobreakdownthevaluechainimproveaddedvalue.Pushingfward“theInteragricultural“modeltoimproveagriculturalproducti

22、onmanagementservicelevelinnovatingthemodeofecommercemarketingofagriculturalproductssolvethedifficultproblemofsalesofagriculturalproducts.Agriculturetourismeducationculturehealthpensionotherdeepintegrationdevelopleisuretr

23、avel第一次作業(yè)論述題：1、它是數(shù)字簽名的新的應(yīng)用。首先生成兩條消息的摘要，將兩個摘要連接起來，生成一個新的摘要（稱為雙重簽名），然后用簽發(fā)者的私有密鑰加密，為了讓接收者驗證雙重簽名，還必須將另外一條消息的摘要一起傳過去。這樣，任何一個消息的接收者都可以通過以下方法驗證消息的真實性：生成消息摘要，將她和另外一個消息摘要連接起來，生成新的摘要，如果它與解密后的雙重簽名相等，就可以確定消息是真實的。2、目前還有一種標(biāo)準(zhǔn)的定義，常見的是對這

24、種攻擊形式、特點的描述。微軟技術(shù)中心從兩個方面進(jìn)行了描述：（1）腳本注入式的攻擊；（2）惡意用戶輸入用來影響被執(zhí)行的SQL腳本。Stephenkost給出了這種攻擊的另一個特征—從一個數(shù)據(jù)庫獲得未經(jīng)授權(quán)的訪問和直接檢索。就本質(zhì)而言，SQL注入攻擊利用的工具是SQL的語法，針對的是應(yīng)用程序開發(fā)者編程過程中的漏洞。當(dāng)攻擊者能夠操作數(shù)據(jù)，往應(yīng)用程序中插入一些SQL語句時，SQL注入攻擊就發(fā)生了。3、端到端加密允許數(shù)據(jù)在從源點到終點的傳輸過程中

25、始終以密文形式存在。采用端到端加密(又稱脫線加密或包加密)消息在被傳輸時到達(dá)終點之前不進(jìn)行解密因為消息在整個傳輸過程中均受到保護(hù)所以即使有節(jié)點被損壞也不會使消息泄露。端到端加密系統(tǒng)的價格便宜些并且與鏈路加密和節(jié)點加密相比更可靠更容易設(shè)計、實現(xiàn)和維護(hù)。端到端加密還避免了其它加密系統(tǒng)所固有的同步問題因為每個報文包均是被加密的所以一個報文包所發(fā)生的傳輸錯誤不會影響后續(xù)的報文包。此外從用戶對安全需求的直覺上講端到端加密更自然些。單個用戶可能會選

26、用這種加密方法以便不影響網(wǎng)絡(luò)上的其他用戶此方法只需要源和目的節(jié)點是保密的即可。端到端加密系統(tǒng)通常不允許對消息的目的地址進(jìn)行加密這是因為每一個消息所經(jīng)過的節(jié)點都要用此地址來確定如何傳輸消息。由于這種加密方法不能掩蓋被傳輸消息的源點與終點因此它對于防止攻擊者分析通信業(yè)務(wù)是脆弱的。4、是只涉及到通信雙方的數(shù)字簽名5、仲裁者對發(fā)送的簽名進(jìn)行測試，檢查其來源和內(nèi)容，然后加上時間戳，并與已被仲裁者通過驗證的簽名一起發(fā)送給接收方。仲裁者扮演了裁判的角

27、色。這種簽名的前提是參與者相信仲裁的公平公正。單選題：1：“進(jìn)不來““拿不走““看不懂““改不了““走不脫“是網(wǎng)絡(luò)信息安全建設(shè)的目的。其中，“拿不走“是指下面那種安全服務(wù)（D）A：數(shù)據(jù)加密B：身份認(rèn)證C：數(shù)據(jù)完整性D：訪問控制2：以下有關(guān)代理服務(wù)技術(shù)的描述中，正確的是（D）A：允許內(nèi)外網(wǎng)間IP包直接交互B：從網(wǎng)絡(luò)層次看工作在網(wǎng)絡(luò)層C：通常都是基于硬件實現(xiàn)的D：與包過濾相比速度要慢些3：關(guān)于防火墻的功能，以下哪一種描述是錯誤的？（D）A：

28、防火墻可以檢查進(jìn)出內(nèi)部網(wǎng)的通信量B：防火墻可以使用應(yīng)用網(wǎng)關(guān)技術(shù)在應(yīng)用層上建立協(xié)議過濾和轉(zhuǎn)發(fā)功能livingstardspofarmersinlessthancompleteeliminationof4600Yuan894919008.“Fivewatersrule“:theCountyinvested2.169billionyuansimilarcountieslinethecitysfirstcompletethe42kmofsewa

29、gepipewkconstructioncompletionraterankedfirstinthecitywontheprovincialruralsewagetreatmentwkbetterkeypollutionsourcessuchaselectroplatingpapermakingchemicalindustrymanagementthroughverificationacceptanceofthemunicipalgov

30、ernmenttheCountyremovedBlackodousRiverRiverwastebeginningofriverecologicalrestationeffects.“Threemodifiedasplit“aspects:Countytotaldemolitionillegalareaup2.759millionsquaremeterscompletedCityissuedannualtaskof153%splitag

31、ainstarearankingcitysecondcompleted“threemodified“area4.846millionsquaremeterscompletedCityissuedannualtaskof403%rankingcitythirdwhichvillageintheatargetcompletedtotalcityrankingfirstCountyGovernmentwasnamedcitylevel“thr

32、eemodifiedasplit“wkadvanced.Theseachievementsarehardwonshouldbeappreciated.HoweverwearefullyawarethenewperiodwkinthecountrysidetheenvironmentfacinghigherstardsrequirementsprovincialpartyCommitteeofferedtohighlevelbuildac

33、omprehensivewelloffsocietygoalrequires“nofilthdirtyenvironmentillegalbuildingsintoawelloff“municipalpartyCommitteealsoproposestobuildintothewelloffbenchmarkgoalsofthecity.Comparedwiththesupericlaim“SouthGateofXXbeautiful

34、“goalmyCounty“SanNong“environmentthereareanumberofweaknessesgapshighlightedinthefollowingfiveaspects:firstagricultureremained“l(fā)ow“pattern.“Low“isreflectedinthequalitylowshtvalueaddedoftheindustrychainislow123fusionyieldl

35、owemployeeagelowquality.“Small“isreflectedinsmallerspecializedcooperativesthroughouttheCountytherewere3396butonthescaleoftoolittle.“San“isreflectedinproductionmanagementservicesdecentralizedcentralizedstardizedbrinfmatio

36、nganizationallevelisnothigh.Secondthecountrysideisstillin“dirty“phase.“Dirty“isdirtyofruralsanitationsituationhasnotchanged.“Chaos“isavillageinruralhousingconstructionplanningconstructionofdisdernodrawingsnoconstructionn

37、ovetting“fourno“phenomenonheaplyingthere.“Bad“istheweakruralbasevillagegovernanceispo.Thirdlyfarmerscontinuedtobe“persistent“l(fā)ook.“Old“isagingrurallabfceaccountedf70%overtheageof50.“Big“isthattherefmmeasuresgroundresista

38、ncesuchasthetransactionsofpropertyrightslreplacementpublicservicesupplygapruraleducationhealthcarepensionsotherservicescannotmeetthedemstilldifficultfpovertyalleviationwithemphasisonpovertyalleviation191.“Hard“isa“peasan

39、tspeasants.Fourwatereffectsstilllackscompelling.“Althoughthe“fivewatertreatment“alotwkveryhardbutthefloodofscientificenoughbefethetreatmentwaterqualityimprovementafterthetreatmenteffectisnotobviouscountywidefocusonrivers

40、tilllargelyinferifivewaterswimmingtheRivercouldnotbefound.Fiveis“threetosplit“taskstillliesahead.Noticeofstocktherenewconstructiondidnotreceivetimelytreatmenteveryyear(suchasancestralhallasunauthisedrepeated)contrarytoth

41、ecreatedwkisverydifferentfromtheprovincialmunicipalstards.Meanwhilewhenimplementationisnotinplacegenerallyonlyfocusonillegalconstructiondemolishedfailingthatsplitthatisclearcombineddemolitioninsufficientattentiontorecons

42、tructionofoldresidentialareasurbanvillagesshantytownspromotepo.Tosolvetheseproblemswemustenhancethesenseofresponsibilityurgencyinsistonproblemientedtotakestrongmeasuresefftstomakeupthe“threeagriculture““fivewatertreatmen

43、t““threetosplita“shtBoardconstructionofcomprehensivesafeguards“SouthGateofXXbeautiful“goalofrealizing.IIprecisionShipolicymanpowerplayinggood“threeagricultural“wkprotracted“threeagricultural“wkisdoeconomicsocialdevelopme

44、ntthewkofbasedcountylevelsthesecttoaccdingto“basedagriculturalmanpowerruraldevelopmentfarmers“ofrequirementsinsistedagriculturalruralbasedstatusnotshakeinsistedhuinongkulakpolicynotweakenedinsistedrefminnovationtestnotst

45、opefftscreatednewera“threeagricultural“wknewsituation.(A)tomakeagricultureme.Toestablishtheconceptofagriculturearoundthepeopledemcomprehensivelypromotethesupplysideofagriculturestructuralrefmstrivetoenhancethequalityeffi

46、ciencyofagriculturecompetitiveness.Focusisondoingthefourarticles.Oneisthesteadyincreaseofgrainarticle.Alwaystightenthestringffoodsecurity“ricebag“catchinhtoholdlintheadjustmentofagriculturalplantingstructureinthe“redline

47、.“Acceleratingtheconstructionofgrainribbonsimprovingagriculturalinfrastructureenhancefoodproductioncapacityimprovethequalityofagriculturalproductseffectively“steadyincreaseofgrain“maintain“tongue.“Secondindustryconvergen

48、cearticle.Enhancethelevelofconcentrationintensificationofagriculturecreatingproductionprocessingdistributionsalesserviceinoneoftheagriculturalindustrialchaintobreakdownthevaluechainimproveaddedvalue.Pushingfward“theInter

49、agricultural“modeltoimproveagriculturalproductionmanagementservicelevelinnovatingthemodeofecommercemarketingofagriculturalproductssolvethedifficultproblemofsalesofagriculturalproducts.Agriculturetourismeducationculturehe

50、althpensionotherdeepintegrationdevelopleisuretravelA：選擇由全英文字母組成的口令B：選擇由全數(shù)字組成的口令C：選擇與自己身份相關(guān)的口令，以免忘記D：選擇無規(guī)律的口令21：關(guān)于屏蔽子網(wǎng)防火墻，下列說法錯誤的是（D）A：屏蔽子網(wǎng)防火墻是幾種防火墻類型中最安全的B：屏蔽子網(wǎng)防火墻既支持應(yīng)用級網(wǎng)關(guān)也支持電路級網(wǎng)關(guān)C：內(nèi)部網(wǎng)對于Inter來說是不可見的D：內(nèi)部用戶可以不通過DMZ直接訪問Inte

51、r22：在包過濾技術(shù)中，不能作為過濾依據(jù)的是（D）A：源IP地址B：傳輸層協(xié)議C：目的端口D：數(shù)據(jù)內(nèi)容23：以下加密方式中能同時提供保密性和鑒別性的有（D）A：A用自己私鑰加密報文傳給BB：A用自己公鑰加密報文傳給BC：A用B的公鑰加密報文傳給BD：A用自己私鑰加密報文再用B的公鑰加密報文傳給B24：防毒系統(tǒng)在哪個階段可以獲得病毒入侵報告(C)A：擴(kuò)散預(yù)防階段B：快速響應(yīng)清除階段C：評估與恢復(fù)階段D：向領(lǐng)導(dǎo)匯報階段25：下列措施中，哪項

52、不是減少病毒的傳染和造成的損失的好辦法。（C）A：重要的文件要及時、定期備份，使備份能反映出系統(tǒng)的最新狀態(tài)B：外來的文件要經(jīng)過病毒檢測才能使用，不要使用盜版軟件C：不與外界進(jìn)行任何交流，所有軟件都自行開發(fā)D：定期用抗病毒軟件對系統(tǒng)進(jìn)行查毒、殺毒26：被以下哪種病毒感染后，會使計算機(jī)產(chǎn)生下列現(xiàn)象：系統(tǒng)資源被大量占用，有時會彈出RPC服務(wù)終止的對話框，并且系統(tǒng)反復(fù)重啟不能收發(fā)郵件、不能正常復(fù)制文件、無法正常瀏覽網(wǎng)頁，復(fù)制粘貼等操作受到嚴(yán)重影