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计算机网络管理员《单选集》真题及答案
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Inthefollowingessayeachblankhasfourchoices.Choosethemostsuitableonefromthefourchoicesandwritedownintheanswersheet.Heterogeneousnetworkenvironmentsconsistofcomputersystemsfrom66vendorsthatrun67operatingsystemsandcommunicationprotocols.Anorganizationthat68itscomputerresourcesisusually69thetaskofintegratingitsheterogeneoussystems.Typicallyeachdeparlmentordivisionhasdefineditsownnetworkneeds70OSLANtopologycommunicationprotocolsapplicationsandothercomponents.
Inthefollowingessayeachblankhasfourchoices.Choosethemostsuitableonefromthefourchoicesandwritedownintheanswersheet.Therearetwotypesofkeytechnology:privatekeyandpublickey.Private-keyencryptionmethodsarecalled71ciphersinformationisencryptedwith72boththesenderandreceiverholdprivately.Public-keyencryptionmethodsarecalled73ciphers74createdforeachuserencryptionkeyanddeceptionkeyare75
Inthefollowingessayeachblankhasfourchoices.Choosethemostsuitableonefromthefourchoicesandwritedownintheanswersheet.Therearetwotypesofkeytechnology:privatekeyandpublickey.Private-keyencryptionmethodsarecalled71ciphersinformationisencryptedwith72boththesenderandreceiverholdprivately.Public-keyencryptionmethodsarecalled73ciphers74createdforeachuserencryptionkeyanddeceptionkeyare75
In66thestrengthofthecarriersignalisvariedtorepresentbinary1or0.67isasystemthatcanmapanametoanaddressandconverselyanaddresstoalname.68isathree-wayhandshakingauthenticationprotocolthatit’spacketsareencapsulatedinthepoint-to-pointprotocol.69isanapproachthatenablesanATMswitchtobehavelikeaLANswitch.70isanguidedmediawhichismadeofglassorplasticandtransmitssignalsintheformoflight.
Inthefollowingessayeachblankhasfourchoices.Choosethemostsuitableonefromthefourchoicesandwritedownintheanswersheet.Therearetwotypesofkeytechnology:privatekeyandpublickey.Private-keyencryptionmethodsarecalled71ciphersinformationisencryptedwith72boththesenderandreceiverholdprivately.Public-keyencryptionmethodsarecalled73ciphers74createdforeachuserencryptionkeyanddeceptionkeyare75
在多媒体计算机中语音和音乐是最基本的功能之一实现模拟音频数字化的主要过程是12量化和编码人们通常用8位声卡或16位声卡来区分不同的声卡质量若量化位是8位并规定输入信号幅度为0～3V则每一量化单位约对应13mV声卡需使用计算机的资源因此在安装声卡时要分配适当的中断请求号14和直接存取通道号
在多媒体计算机中语音和音乐是最基本的功能之一实现模拟音频数字化的主要过程是12量化和编码人们通常用8位声卡或16位声卡来区分不同的声卡质量若量化位是8位并规定输入信号幅度为0～3V则每一量化单位约对应13mV声卡需使用计算机的资源因此在安装声卡时要分配适当的中断请求号14和直接存取通道号
由6个字符的7位ASCⅡ编码排列再加上水平垂直奇偶校验位构成下列矩阵最后一列为水平奇偶校验位最后一行为垂直奇偶校验位字符30X1X200110I100100X31+X41010110701X5X61111D100X710X80=0X9111X101100111X111X12则X1X2X3X4处的比特分别为7XX6X7Xs处的比特分别为8XgXl0XX处的比特分别为9
In66thestrengthofthecarriersignalisvariedtorepresentbinary1or0.67isasystemthatcanmapanametoanaddressandconverselyanaddresstoalname.68isathree-wayhandshakingauthenticationprotocolthatit’spacketsareencapsulatedinthepoint-to-pointprotocol.69isanapproachthatenablesanATMswitchtobehavelikeaLANswitch.70isanguidedmediawhichismadeofglassorplasticandtransmitssignalsintheformoflight.
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