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ID:13288038
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页数:20页
时间:2018-07-21
《《全国资格考试计算机等级考试四级嵌入式工程师真题 含详细解析版》》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、一建考试资料,欢迎各位下载!计算机等级考试四级嵌入式工程师选择题1.采用多道程序设计技术,能有效地提高系统的下列哪一个性能?A)并发性B)灵活性C)可靠性D)兼容性A【解析】并发运行是指在计算机系统中同时存在若干个运行着的程序,各进程均处于已开始运行与结束之间,宏观上各进程并行运行,正是多道程序设计技术的出现使得程序的并发执行成为可能。故选择A选项。2.除了进程线程管理、存储管理、文件系统外,下列哪一个是属于操作系统的必要组成部分?A)设备管理B)资源管理C)运行时系统D)虚拟化模块A【解析】操作系统位于底层硬件与用户之间,是两者沟通的桥梁。用户可以通过操作系统的用户界面,输入命令。操作系统则
2、对命令进行解释,驱动硬件设备,实现用户要求。以现代观点而言,一个标准个人电脑的OS应该提供以下的功能:进程管理;内存管理;文件系统;网络通讯;安全机制;用户界面;驱动程序(硬件设备管理)。故选择A选项。3.若用户编程需要打印输出,他可使用下列操作系统提供的哪一种系统调用?A)write()B)printf()C)output()D)list()Opinionsandsuggestionsontheparty'smasslineeducationalpracticeAccordingtothecentralandprovincial,municipalunifieddeployment,acco
3、rdingtomunicipalPartycommittee"aboutcarryingouttheparty'smasslineeducationalpracticeactivityinthecity'simplementationopinions,thespiritoftheparty'smasslineeducationalpracticeactivitiesfrom20**inJanuaryto99months,carriedoutatalllevelsofdepartmentsanddirectlyaffiliatedinstitutionsandgrass-rootspartyor
4、ganizations.AccordingtomyactualCounty,thecountytocarryouttheeducationpracticeputforwardthefollowingimplementationopinions.First,theoverallrequirementsCountycountyeducationpracticetotheeighteenPartyofeight,thespiritofthethethirdPlenarySessionofthe18thCPCCentralCommitteeastheguidance,conscientiouslyim
5、plementthespiritofgeneralsecretaryXiJinpingbookseriesofimportantspeech,earnestlyimplementtheCentralCommitteereally,opinionsandadvice><<>,6、t,thegeneralrequirementsof"forthepeoplepragmatichonestpeopleasthetheme,incarryingforwardthespiritofZhuanglangZhuang,improvetheirworkstyle,servicetothemassesofthepeople,thefoundationofconsolidatinggrassroots,promotetransformationacrossefforts,tofurtherimplementthecentraleightregulationsand7、ionpartyandgovernmentausteritywasteregulations","doublesection"provincialregulations,municipalprovisionsofthe"twelve"planandtheimplementationmeasuresfor
6、t,thegeneralrequirementsof"forthepeoplepragmatichonestpeopleasthetheme,incarryingforwardthespiritofZhuanglangZhuang,improvetheirworkstyle,servicetothemassesofthepeople,thefoundationofconsolidatinggrassroots,promotetransformationacrossefforts,tofurtherimplementthecentraleightregulationsand7、ionpartyandgovernmentausteritywasteregulations","doublesection"provincialregulations,municipalprovisionsofthe"twelve"planandtheimplementationmeasuresfor
7、ionpartyandgovernmentausteritywasteregulations","doublesection"provincialregulations,municipalprovisionsofthe"twelve"planandtheimplementationmeasuresfor
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