2021浙江软件水平考试考试真题卷(3).docx
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1、2021浙江软件水平考试考试真题卷(3)本卷共分为1大题50小题,作答时间为180分钟,总分100分,60分及格。一、单项选择题(共50题,每题2分。每题的备选项中,只有一个最符合题意) 1.防火墙是建立在内外网边界上的一类安全保护机制,它的安全架构基于 (45) 。堡垒主机(双端口主机)防火墙装有 (46) ,其上运行的是 (47) 。在ISO OSI/RM中对网络安全服务所属的协议层次进行分析,要求每个协议层都能提供网络安全服务。其中用户身份认证在 (48) 进行,而IP过滤型防火墙在 (49) 通过控制网络边界的信息流动,来强化内部网络的安全性。(47)处填()。A代理服务器软件B网络操
2、作系统C数据库管理系统D应用软件2.大容量的辅助存储器常采用RAID磁盘阵列,其中 (5) 是无独立校验盘的奇偶校验码磁盘阵列,若该阵列由n(n2)块大小相同的磁盘构成,则磁盘利用率是 (6) 。(5)处填()。ARAID0BRAIDlCRAID3DRAID53.The most accurate and most boring way to (66) Java is that it is a new computer programming language developed by Sun Microsystems that creates (67) independent program
3、s that can be distributed and run remotely. To run Java programs, a computer must have a Java interpreter. Currently (68) Java programs are small applets that are (68) as part of web pages.When you use a Java (69) browser to view a Web page that includes a Java applet, the browser loads the applet o
4、nto your computer through your modem or network. Then the Java interpreter runs the applet, which could include animation or sound, on your computer rather than transmitting the code bit by bit over Internet. A few thousand bytes of Java code can turn into a powerful program on your computer.So an a
5、pplet could include (70) with Java interpreter.(66)处填()。AconunandBcommentCdescribeDdiscover4.最小码字之间的海明距离是一个码字要变成另一个码字时必须改变的最小位数。如果任意码字之间的最小海明距离是d,则所有少于等于 (28) 位的错误都可以检查出来,所有少于 (29) 位的错误都可以纠正。(29)处填()。Ad-1Bd-2Cd+1Dd/25.When you think of the Internet, you probably think of .com. Just what do those thr
6、ee letters at the end of a World Wide Web address mean Every computer that hosts data on the Internet has a (71) numerical address. For example, the numerical address for the White House is 198.137.240.100. But since (72) people want to remember long strings of numbers, the (73) was developed. It is
7、 a critical part of the Internet’s technical infrastructure, correlates a numerical address to a word. To (74) the White House website, you could type its numerical address into the address box of your web browser. But most people prefer to use www. whitehouse. gov. In this case, the domain na
8、me is (75) .(75)处填()。Awww.Bwww. whitehouseCwww. whitehouse. govDwhitehouse. gov6.防火墙是建立在内外网边界上的一类安全保护机制,它的安全架构基于 (45) 。堡垒主机(双端口主机)防火墙装有 (46) ,其上运行的是 (47) 。在ISO OSI/RM中对网络安全服务所属的协议层次进行分析,要求每个协议层都能提供网络安全服务。其中用户身份认证在 (48) 进行,而IP过滤型防火墙在 (49) 通过控制网络边界的信息流动,来强化内部网络的安全性。(48)处填()。A网络层B传输层C物理层D应用层7.大容量的辅助存储器
9、常采用RAID磁盘阵列,其中 (5) 是无独立校验盘的奇偶校验码磁盘阵列,若该阵列由n(n2)块大小相同的磁盘构成,则磁盘利用率是 (6) 。(6)处填()。A50%B(n-2)/nC(n-1)/nD100%8.The most accurate and most boring way to (66) Java is that it is a new computer programming language developed by Sun Microsystems that creates (67) independent programs that can be distributed
10、and run remotely. To run Java programs, a computer must have a Java interpreter. Currently (68) Java programs are small applets that are (68) as part of web pages.When you use a Java (69) browser to view a Web page that includes a Java applet, the browser loads the applet onto your computer through
11、your modem or network. Then the Java interpreter runs the applet, which could include animation or sound, on your computer rather than transmitting the code bit by bit over Internet. A few thousand bytes of Java code can turn into a powerful program on your computer.So an applet could include (70) w
12、ith Java interpreter.(67)处填()。AconditionBplatformCprogrammerDworkstation9.防火墙是建立在内外网边界上的一类安全保护机制,它的安全架构基于 (45) 。堡垒主机(双端口主机)防火墙装有 (46) ,其上运行的是 (47) 。在ISO OSI/RM中对网络安全服务所属的协议层次进行分析,要求每个协议层都能提供网络安全服务。其中用户身份认证在 (48) 进行,而IP过滤型防火墙在 (49) 通过控制网络边界的信息流动,来强化内部网络的安全性。(49)处填()。A应用层B数据链路层C网络层D会话层10.The most accu
13、rate and most boring way to (66) Java is that it is a new computer programming language developed by Sun Microsystems that creates (67) independent programs that can be distributed and run remotely. To run Java programs, a computer must have a Java interpreter. Currently (68) Java programs are small
14、 applets that are (68) as part of web pages.When you use a Java (69) browser to view a Web page that includes a Java applet, the browser loads the applet onto your computer through your modem or network. Then the Java interpreter runs the applet, which could include animation or sound, on your compu
15、ter rather than transmitting the code bit by bit over Internet. A few thousand bytes of Java code can turn into a powerful program on your computer.So an applet could include (70) with Java interpreter.(68)处填()。AavailableBvaluableCpossibleDprobable11.The most accurate and most boring way to (66) Jav
16、a is that it is a new computer programming language developed by Sun Microsystems that creates (67) independent programs that can be distributed and run remotely. To run Java programs, a computer must have a Java interpreter. Currently (68) Java programs are small applets that are (68) as part of we
17、b pages.When you use a Java (69) browser to view a Web page that includes a Java applet, the browser loads the applet onto your computer through your modem or network. Then the Java interpreter runs the applet, which could include animation or sound, on your computer rather than transmitting the cod
18、e bit by bit over Internet. A few thousand bytes of Java code can turn into a powerful program on your computer.So an applet could include (70) with Java interpreter.(69)处填()。AstableBprobableCavailableDcapable12.The most accurate and most boring way to (66) Java is that it is a new computer programm
19、ing language developed by Sun Microsystems that creates (67) independent programs that can be distributed and run remotely. To run Java programs, a computer must have a Java interpreter. Currently (68) Java programs are small applets that are (68) as part of web pages.When you use a Java (69) browse
20、r to view a Web page that includes a Java applet, the browser loads the applet onto your computer through your modem or network. Then the Java interpreter runs the applet, which could include animation or sound, on your computer rather than transmitting the code bit by bit over Internet. A few thous
21、and bytes of Java code can turn into a powerful program on your computer.So an applet could include (70) with Java interpreter.(70)处填()。Aanimation or soundBanimation and soundCanimation and be runDanimation and be loaded13.设置技术部和销售部的主机网络参数后,如果两个子网间的主机不能通信,用 (12) 命令来测试数据包是否能够到达网关计算机。 如果数据包可以到达网关但是不能转
22、发到目标计算机上,则需要用命令cat/pro/sys/net/ipv4/ip_forward来确认网关计算机的内核是否支持IP转发。如果不支持,该命令输出 (13) 。试题二阅读以下说明,根据要求回答问题。 说明 当局域网中存在大量计算机时,根据业务的不同,可以将网络分成几个相对独立的子网。图9-8是某企业子网划分的示意图,整个网将被均分为销售部与技术部两个子网,子网之间通过一台安装了Linux操作系统的双网卡计算机连通。该Linux网关计算机使用了最新的BCM5751网卡芯片,由于Red Hat Linux 9操作系统无法自动识别此硬件,需要单独安装驱动程序才能正常工作。具体安装过程如下:
23、将驱动程序压缩文件bcm5700-8.3.14.tar.gz复制到一个临时目录中,并使用解压缩命令将驱动程序包bcm5700-8.3.14.tar.gz解压缩; 用make命令构建驱动程序的可加载模块; 用make install命令加载驱动程序; 重新启动系统,启动过程中系统找到网卡进行相应参数配置。AtracerouteBtracertCnslookupDroute 14.Linux网关计算机有两个网络接口(eth0和eth1),每个接口与对应的子网连接。该计算机/etc/sysconfig/network文件清单为: NETWORKING=yes FORWARD_IPV4= (2) HO
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