2021云南软件水平考试考试考前冲刺卷(1).docx
《2021云南软件水平考试考试考前冲刺卷(1).docx》由会员分享,可在线阅读,更多相关《2021云南软件水平考试考试考前冲刺卷(1).docx(19页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、2021云南软件水平考试考试考前冲刺卷(1)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.网络设计过程包括逻辑网络设计和物理网络设计两个阶段,每个阶段都要产生相应的文档。以下选项中,()属于逻辑网络设计文档,()属于物理网络设计文档。以下选项中,()属于逻辑网络设计文档。A网络IP地址分配方案B设备列表清单C几种访谈的信息资料D网络内部通信的流量分析2.建筑物综合布线系统的干线子系统(),水平子系统()建筑物综合布线系统的干线子系统()A各个楼层接线间配线架到工作区信息插座之间所安装的线缆
2、B由终端到信息插座之间的连线系统C各楼层设备之间的互联系统D连接各个建筑物的通信系统3.Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of () . This, in turn, limits the data rate that can be carried on the transmission ()
3、. A square wave has an infinite number of frequency components and hence an infinite () .However, the peak amplitude of the kth frequency component, kf, is only 1/k, so most of the () in this waveform is in the first few frequency components. In general, any digital waveform will have () bandwidth.
4、If we attempt to transmit this waveform as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a li
5、mited band of () .AfrequenciesBconnectionsCdiagramsDresources4.Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of () . This, in turn, limits the data rate that can be carried on t
6、he transmission () . A square wave has an infinite number of frequency components and hence an infinite () .However, the peak amplitude of the kth frequency component, kf, is only 1/k, so most of the () in this waveform is in the first few frequency components. In general, any digital waveform will
7、have () bandwidth. If we attempt to transmit this waveform as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.This, in turn, limits the data rate that can be carried on the transmission()AproceduresBfunctionCrouteDmedium5.下图表示一个局域网的互联拓扑,方框中的数字是网桥ID,
8、用字母来区分不同的网段。按照IEEE802.1d协议,ID为()的网桥被选为根网桥,如果所有网段的传输费用为1,则ID为92的网桥连接网段()的端口为根端口。如果所有网段的传输费用为1,则ID为92的网桥连接网段()的端口为根端口。AaBbCdDe6.建筑物综合布线系统的干线子系统(),水平子系统()水平子系统()A各个楼层接线间配线架到工作区信息插座之间所安装的线缆B由终端到信息插座之间的连线系统C各楼层设备之间的互联系统D连接各个建筑物的通信系统7.网络设计过程包括逻辑网络设计和物理网络设计两个阶段,每个阶段都要产生相应的文档。以下选项中,()属于逻辑网络设计文档,()属于物理网络设计文档
9、。()属于物理网络设计文档。A网络IP地址分配方案B设备列表清单C几种访谈的信息资料D网络内部通信的流量分析8.Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of () . This, in turn, limits the data rate that can be carried on the tran
10、smission () . A square wave has an infinite number of frequency components and hence an infinite () .However, the peak amplitude of the kth frequency component, kf, is only 1/k, so most of the () in this waveform is in the first few frequency components. In general, any digital waveform will have ()
11、 bandwidth. If we attempt to transmit this waveform as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.A square wave has an infinite number of frequency components and hence an infinite()AsourceBbandwidthCenergyDcost9.Although a given waveform may c
12、ontain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of () . This, in turn, limits the data rate that can be carried on the transmission () . A square wave has an infinite number of frequency components and hence an
13、 infinite () .However, the peak amplitude of the kth frequency component, kf, is only 1/k, so most of the () in this waveform is in the first few frequency components. In general, any digital waveform will have () bandwidth. If we attempt to transmit this waveform as a signal over any medium, the tr
14、ansmission system will limit the bandwidth that can be transmitted.so most of the () in this waveform is in the first few frequency components.AfrequencyBenergyCamplitudeDphase10.Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system
15、will be able to accommodate only a limited band of () . This, in turn, limits the data rate that can be carried on the transmission () . A square wave has an infinite number of frequency components and hence an infinite () .However, the peak amplitude of the kth frequency component, kf, is only 1/k,
16、 so most of the () in this waveform is in the first few frequency components. In general, any digital waveform will have () bandwidth. If we attempt to transmit this waveform as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.any digital waveform wi
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 2021 云南 软件 水平 考试 考前 冲刺
限制150内